© ISO/IEC 2019

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of the requester.
保留所有權利。除非另有規定，或因實施所需，未經事先書面授權，本出版品之任何部分不得以任何形式或方式（包括電子或機械方式，如影印、於網際網路或內部網路發布等）進行複製或利用。如需授權，可向以下地址之 ISO 或請求者所在國之 ISO 會員機構提出申請。

ISO copyright office  ISO 著作權辦公室
CP 401 - Ch. de Blandonnet 8
CH-1214 Vernier, Geneva  CH-1214 日內瓦韋爾涅
Phone: +41 227490111  電話：+41 227490111
Fax: +41 227490947  傳真：+41 227490947
Email: copyright@iso.org
電子郵件：copyright@iso.org
Website: www.iso.org  網站：www.iso.org
Published in Switzerland
瑞士出版

Page  頁面
Foreword … vi  前言 … vi
Introduction … vii  簡介 … vii
1 Scope … 1
1 範圍 … 1
2 Normative references … 1
2 規範性引用文件 … 1
3 Terms and definitions … 2
3 術語與定義 … 2
4 Abbreviated terms … 7
4 縮寫詞 … 7
5 Conformance … 8
5 符合性 … 8
6 Modality specific information … 9
6 模態特定資訊 … 9
7 Abstract data elements … 9
7 抽象資料元素 ... 9
7.1 Overview … 9
7.1 概述 ... 9
7.1.1 Content and notation … 9
7.1.1 內容與標記法 ... 9
7.1.2 Structure overview … 10
7.1.2 結構概述 ... 10
7.1.3 Data conventions … 11
7.1.3 資料慣例… 11
7.2 Face image data block … 11
7.2 臉部影像資料區塊… 11
7.3 Version block … 11
7.3 版本區塊… 11
7.4 Representation block … 12
7.4 表示法區塊… 12
7.5 Representation identifier … 12
7.5 表示識別碼… 12
7.6 Capture date/time block … 12
7.6 擷取日期/時間區塊… 12
7.7 Quality blocks … 12
7.7 品質區塊… 12
7.8 PAD data block … 12
7.8 PAD 資料區塊… 12
7.9 Session identifier … 12
7.9 工作階段識別碼 … 12
7.10 Derived from … 13
7.10 衍生來源 … 13
7.11 Capture device block … 13
7.11 擷取裝置區塊 … 13
7.12 Model identifier block … 13
7.12 型號識別碼區塊 … 13
7.13 Certification identifier blocks … 13
7.13 認證識別碼區塊…13
7.14 Identity metadata block … 13
7.14 身份詮釋資料區塊…13
7.15 Gender … 14
7.15 性別…14
7.16 Eye colour … 14
7.16 眼睛顏色…14
7.17 Hair colour … 15
7.17 髮色 … 15
7.18 Subject height … 15
7.18 主體身高 … 15
7.19 Properties block … 16
7.19 屬性區塊 … 16
7.20 Expression block … 16
7.20 表情區塊 … 16
7.21 Pose angle block … 17
7.21 姿態角度區塊 … 17
7.22 Angle data block … 18
7.22 角度資料區塊 … 18
7.23 Angle value … 18
7.23 角度數值 … 18
7.24 Angle uncertainty … 18
7.24 角度不確定度 … 18
7.25 Landmark block … 19
7.25 地標區塊 … 19
7.26 Landmark kind … 19
7.26 地標類型 … 19
7.27 MPEG4 feature point … 19
7.27 MPEG4 特徵點 … 19
7.28 Anthropometric landmark … 22
7.28 人體測量地標 … 22
7.29 Landmark coordinates block … 25
7.29 地標座標區塊 … 25
7.30 Image representation block … 26
7.30 影像呈現區塊 … 26
7.31 2D image representation block … 26
7.31 2D 影像呈現區塊 … 26
7.32 2D representation data … 26
7.32 2D 呈現資料 … 26
7.33 2D capture device block … 26
7.33 2D 擷取裝置區塊… 26
7.34 2D capture device spectral block … 26
7.34 2D 擷取裝置光譜區塊… 26
7.35 2D capture device technology identifier … 27
7.35 2D 擷取裝置技術識別碼… 27
7.36 2D image information block … 27
7.36 2D 影像資訊區塊… 27
7.37 2D face image kind … 27
7.37 2D 臉部影像種類… 27
7.38 Post acquisition processing block … 28
7.38 擷取後處理區塊… 28
7.39 Lossy transformation attempts … 28
7.39 有損轉換嘗試… 28
7.40 Image data format … 29
7.40 影像資料格式… 29
7.41 Camera to subject distance … 31
7.41 相機至被攝物距離 … 31
7.42 Sensor diagonal … 31
7.42 感測器對角線 … 31
7.43 Lens focal length … 32
7.43 鏡頭焦距 … 32
7.44 Image size block … 32
7.44 影像尺寸區塊 … 32
7.45 Width … 32
7.45 寬度…32
7.46 Height … 32
7.46 高度…32
7.47 Image face measurements block … 32
7.47 影像面部測量區塊…32
7.48 Image head width … 33
7.48 影像頭部寬度…33
7.49 Image inter-eye distance … 33
7.49 影像雙眼間距…33
7.50 Image eye-to-mouth distance … 34
7.50 影像眼至嘴距離…34
7.51 Image head length … 34
7.51 影像頭部長度…34
7.52 Image colour space … 35
7.52 影像色彩空間…35
7.53 Reference colour mapping block … 35
7.53 參考色彩映射區塊 … 35
7.54 Reference colour schema … 35
7.54 參考色彩架構 … 35
7.55 Reference colour definition and value block … 35
7.55 參考色彩定義與數值區塊 … 35
7.56 3D shape representation block … 35
7.56 3D 形狀表示區塊 … 35
7.57 3D representation data … 36
7.57 3D 表現資料 … 36
7.58 3D capture device block … 36
7.58 3D 擷取裝置區塊 … 36
7.59 3D modus … 36
7.59 3D 模式 … 36
7.60 3D capture device technology identifier … 36
7.60 3D 擷取裝置技術識別碼 … 36
7.61 3D image information block … 37
7.61 3D 影像資訊區塊 … 37
7.62 3D representation kind block … 37
7.62 3D 呈現種類區塊 … 37
7.63 3D vertex block … 37
7.63 3D 頂點區塊 … 37
7.64 3D vertex information block … 37
7.64 3D 頂點資訊區塊 … 37
7.65 3D vertex coordinate block … 37
7.65 3D 頂點座標區塊 … 37
7.66 3D vertex identifier … 38
7.66 3D 頂點識別碼 … 38
7.67 3D vertex normals block … 38
7.67 3D 頂點法向量區塊 … 38
7.68 3D vertex textures block … 38
7.68 3D 頂點紋理區塊 … 38
7.69 3D error map … 38
7.69 3D 誤差圖… 38
7.70 3D vertex triangle data block … 39
7.70 3D 頂點三角形資料區塊… 39
7.71 3D coordinate system … 39
7.71 3D 座標系統… 39
7.72 3D Cartesian coordinate system … 39
7.72 3D 笛卡爾座標系統… 39
7.73 3D Cartesian scales and offsets block … 40 
7.74 3D face image kind … 41 
7.75 3D physical face measurements block … 41 
7.76 3D physical head width … 41 
7.77 3D physical inter-eye distance … 42 
7.78 3D physical eye-to-mouth distance … 42 
7.79 3D physical head length … 42 
7.80 3D textured image resolution block … 42 
7.81 3D MM shape [X/Y/Z] resolution … 42 
7.82 3D MM texture resolution … 42 
7.83 3D texture acquisition period … 42 
7.84 3D face area scanned block … 43 
7.85 3D texture map block … 43 
7.86 3D texture capture device spectral block … 43 
7.87 3D texture standard illuminant … 44 
7.88 3D texture map data … 44 
8 Encoding … 44 
8.1 Overview … 44 
8.2 Tagged binary encoding … 45 
8.3 XML encoding … 46 
9 Registered BDB format identifiers … 47 
Annex A (normative) Formal specifications … 48 
Annex B (informative) Encoding examples … 80 
Annex C (normative) Conformance testing methodology … 88 
Annex D (normative) Application profiles … 101 
Annex E (informative) Additional technical considerations … 154 
Bibliography … 184 

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. 

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). 

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC list of patent declarations received (see http://patents.iec.ch). 

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. 

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/ iso/foreword.html. 

This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 37, Biometrics. 

A list of all parts in the ISO/IEC 39794 series can be found on the ISO website. 
Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html. 

The purchase of this ISO/IEC document carries a copyright licence for the purchaser to use ISO/IEC copyright in the schemas in the annexes to this document for the purpose of developing, implementing, installing and using software based on those schemas, subject to ISO/IEC licensing conditions set out in the schemas. 

Face images have been used for many decades to verify the identity of individuals. In recent years, digital face images have been used in many applications including human examination as well as computer-automated face recognition. Photographic formats are standardized, e.g., for passports and driver licences. There is also a need for a standard data format for digital face images to enable interoperability. A prominent case where such interoperability is essential is the electronic passport system, where face images are stored for several purposes including Automated Border Control. 

Biometric data interchange formats enable the interoperability of different biometric systems. The first generation of biometric data interchange formats was published between 2005 and 2007 in the first edition of the ISO/IEC 19794 series. From 2011 onwards, the second generation of biometric data interchange formats was published in the second edition of the established parts and the first edition of some new parts of the ISO/IEC 19794 series. In the second generation of biometric data interchange formats, new useful data elements such as data elements related to biometric sample quality were added, the header data structures were harmonized across all parts of the ISO/IEC 19794 series, and XML encoding was been added in addition to the binary encoding. 

In anticipation of the need for additional data elements, and in order to avoid future compatibility issues, the ISO/IEC 39794 series provides standard biometric data interchange formats capable of being extended in a defined way. Extensible specifications in ASN. 1 (Abstract Syntax Notation One) and the distinguished encoding rules (DER) of ASN. 1 form the basis for encoding biometric data in binary tag-length-value formats. XSDs (XML schema definitions) form the basis for encoding biometric data in XML (eXtensible Markup Language). 

This third generation of face image data interchange formats complements ISO/IEC 19794-5:2005 and ISO/IEC 19794-5:2011. The first generation of biometric data interchange formats, which has been adopted, e.g., by ICAO for the biometric data stored in Machine Readable Travel Documents, is expected to be retained in the standards catalogue as long as needed. 

This document is intended to provide a generic face image data format for face recognition applications requiring exchange of face image data. Typical applications are: 

In addition to the data format, this document specifies application specific profiles including scene constraints, photographic properties and digital image attributes like image spatial sampling rate, image size, etc. These application profiles are contained in Annex D. 

The structure of the data format in this document is not compatible with the previous generations. However, this new revision addresses, for the first time, a mechanism to maintain future extensions in a backwards- and forwards-compatible manner. This will mean that a parser is able to read data records and understand data items that are formatted according to versions of the standard that are older, the same or newer than the parser is developed to. All newer data items will not disrupt the parsing process and can be ignored. Newer versions of this document will at least include the mandatory data items of the previous standards. 

The 3D encoding types 3D point map and range image are not supported by this edition of this document. 

This document specifies: 

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 

ISO/IEC 2382-37, Information technology - Vocabulary - Part 37: Biometrics 
ISO/IEC 8824-1, Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation - Part 1 

ISO/IEC 8825-1, Information technology - ASN. 1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER) — Part 1 

ITU-T Rec. T. 81 | ISO/IEC 10918-1, Information technology - Digital compression and coding of continuous-tone still images - Part 1: Requirements and guidelines 

ISO 11664-2:2007, Colorimetry - Part 2: CIE standard illuminants 
ISO/IEC 14496-2:2004, Information technology - Coding of audio-visual objects - Part 2: Visual 
ITU-T Rec. T. 800 | ISO/IEC 15444-1, Information technology - JPEG 2000 image coding system - Part 1: Core coding system 

ISO/IEC 15948, Information technology - Computer graphics and image processing - Portable Network Graphics (PNG): Functional specification 

ISO/IEC 39794-1, Information technology - Extensible biometric data interchange formats - Part 1: Framework 

Doc ICAO 9303: Machine Readable Travel Documents 
W3C Recommendation, XML Schema Part 1: Structures (Second Edition), 28 October 2004, http://www w3.org/TR/xmlschema-1/ 

W3C Recommendation, XML Schema Part 2: Datatypes (Second Edition), 28 October 2004, http://www .w3.org/TR/xmlschema-2/ 

For the purposes of this document, the terms and definitions given in ISO/IEC 39794-1, ISO/IEC 2382-37 and the following apply. 

ISO and IEC maintain terminological databases for use in standardization at the following addresses: 

1:1 application case 
biometric verification 
Note 1 to entry: Biometric verification is defined in ISO/IEC 2382-37 as a process of confirming a biometric claim through biometric comparison. 
3.2

1:N application case 
biometric identification 
Note 1 to entry: Biometric identification is defined in ISO/IEC 2382-37 as a process of searching against a biometric enrolment database to find and return the biometric reference identifier(s) attributable to a single individual. 
3.3

2D face image 
two-dimensional face representation that encodes the luminance and/or colour texture of the face of a capture subject in a given lighting environment 
3.4

3D face image 
three-dimensional face representation that encodes a surface in a 3D space 
3.5

3D vertex 
representation using 3D vertices and triangles between these points for coding of a 3D surface 
3.6

RGB 
colour space designed to encompass most of the colours achievable on CMYK colour printers, but by using red, green and blue primary colours on a device such as a computer display 
3.7
anthropometric landmark 
landmark on the face used for identification and classification of humans 
3.8
landmark code 
<anthropometric> two-part code that uniquely defines an anthropometric landmark 
3.9
camera to subject distance 
CSD 
distance between the eyes plane of a capture subject and the and the sensor/image plane of the camera 

3D orthogonal coordinate system 

central forward portion of the lower jaw 

commonly used standard illuminant defined by the International Commission on Illumination (CIE) that is intended to represent average daylight and has a correlated colour temperature of approximately 6500 K 

Note 1 to entry: CIE standard illuminant D65 is specified in ISO 11664-2. 

continuous tone image ( $\underset{―}{3.16}$$\underset{\_}{3.16}$3.16 _\underline{3.16} ) that has more than one channel, each of which is coded with one or multiple bits 

way of representing colours of pixels in an image 
EXAMPLE RGB and YUV colour spaces are typically used in this document. 

data format specifically for exchanging biometric data that provides for the encompassing of any biometric type into a standard format 

image whose channels have more than one bit per pixel 

ratio of the diagonal of the full frame camera $(43,3\mathrm{mm})$$(43,3\mathrm{mm})$(43,3mm)(43,3 \mathrm{~mm}) to that of a selected camera’s image sensor 
Note 1 to entry: The determination of an appropriate focal length lens for a field of view equivalent to a full frame camera can be made by considering the crop factor. 

top of the head ignoring any hair 

dots per inch 

individual printed dots in a line or column within a span of $25,4\mathrm{mm}(1\mathrm{inch})$$25,4\mathrm{mm}(1\mathrm{inch})$25,4mm(1inch)25,4 \mathrm{~mm}(1 \mathrm{inch}) 

EV 
number that represents a combination of a camera’s shutter speed and f-number, such that all combinations that yield the same exposure have the same description value 

centre of the line connecting the inner and the outer corner of the eye 
Note 1 to entry: The eye centres are the feature points 12.1 and 12.2 as defined in ISO/IEC 14496-2:2004, Annex C. 
Note 2 to entry: The inner and the outer corner of the eye are defined by ISO/IEC 14496-2-2:2004: feature points 3.12 and 3.8 for the right eye, and 3.11 and 3.7 for the left eye. 
3.22
eye-to-mouth distance 
EMD 
distance between the face centre and the mouth midpoint 
Note 1 to entry: The mouth midpoint is the feature point 2.3 as defined in ISO/IEC 14496-2:2004, Annex C. 

eye visibility zone 

zone covering a rectangle having a margin to any part of the visible eyeball 
Note 1 to entry: The margin is defined in D.1.4.3.3. 

M
midpoint of the line connecting the two eye centres 

category of face images ( $\underset{―}{3.27}$$\underset{\_}{3.27}$3.27 _\underline{3.27} ) that satisfy specific requirements 

standard for the virtual representation, which includes visual speech intelligibility, mood and gesture by using feature points 

electronic image-based representation of the face of a capture subject 

visual representation of the capture subject, which includes the full-frontal part of the head, including hair in most cases, as well as neck and possibly top of shoulders 

2D sampling face representation that encodes one or a combination of several spectral spatial modulations received by 3D imaging systems of a face in a given lighting system having a 2D coordinate link to the face shape 

reference point in a face image as used by face recognition algorithms 
Note 1 to entry: Commonly referred to as a landmark, an example being the position of the eyes. 
3.31
fish eye 
type of distortion where central objects of the image erroneously appear closer than those at the edge 
3.32

Frankfurt Horizon 
standard plane for orientation of the head defined by a line passing through the right tragion (the front of the ear) and the lowest point of the right eye socket 

Note 1 to entry: The Frankfurt Horizon may be hard to define, as it is related to the ear position that may be covered by hair. 

Note 2 to entry: The Frankfurt Horizon has been defined in the Frankfurt-am-Main (anthropological) Agreement of 1882. 
3.33
greyscale image 
continuous tone image ( $\underset{―}{3.16}$$\underset{\_}{3.16}$3.16 _\underline{3.16} ) encoded with one luminance channel 
Note 1 to entry: If the luminance channel is coded with 8 bits, the greyscale image is also referred to as a monochrome or black and white image. 
3.34
horizontal deviation angle 
HD 
maximal allowed deviation from the horizontal of the imaginary line between the nose of a capture subject and the lens of the camera 
3.35
human examination 
process of human comparison of a face image with an individual or another face image through detailed examination of face characteristics and structures for the purposes of biometric verification or identification 

human identification 
process of human searching through a list of face images to match against an input image(s) 
Note 1 to entry: Also known as one-to-many (1:N) searching. 
Note 2 to entry: Identification can be performed by human (experts) as well, and human identification may consider more than biometric data. 

human verification 
process of confirming a specific biometric claim by human comparison of a face image with an individual or another face image 

Note 1 to entry: Also known as one-to-one ( $1:1$$1:1$1:11: 1 ) comparison. 
Note 2 to entry: Verification can be performed by human (experts) as well, and human verification may consider more than biometric data. 

3.39
inner region 
pixels of a face image carrying data of the central region of a face 

3.40
inter-eye distance 
IED 
length of the line connecting the eye centres of the left and right eye 
3.41
issuer 
organization that issues Machine Readable Travel Documents (MRTDs) 
3.42
lower camel-case notation 
naming convention in which compound words are joined together without spaces, where the first letter of the entire word is lowercase, but the first letter of subsequent words is uppercase 

magnification distortion 
image imperfection where the degree of magnification varies with the distance from the camera and the depth of the face 
3.44
modus 
manner in which a particular property is acquired 
3.45
near infrared 
section of infrared band with wavelength from 780 nm to 3000 nm 
3.46
outer region 
pixels of a face image outside of the inner region 
3.47
photo booth 
automated system for digitally capturing 2D images in either public or office environments 
Note 1 to entry: A photo booth encloses the subject in a highly-controlled lighting environment and consists of a camera, lighting and peripheral devices such as printers. It has entrances on one or both sides with reflective curtains protecting against ambient light. 
3.48
photo kiosk 
semi-automated system for digitally capturing 2D images in an office-environment 
Note 1 to entry: A photo kiosk consists of camera and lighting and usually has a separate panel placed behind the subject to provide the required background but is otherwise open. 
3.49
pixel 
picture element on a two-dimensional array that comprises an image 
3.50
pixel per inch 
PPI 
individual pixels in a line or column of a digital image within a span of $25,4\mathrm{mm}(1\mathrm{inch})$$25,4\mathrm{mm}(1\mathrm{inch})$25,4mm(1inch)25,4 \mathrm{~mm}(1 \mathrm{inch}) 
3.51
presentation attack 
presentation of an artefact or human characteristic to the biometric capture subsystem in a fashion that could interfere with the intended policy of the biometric system 
3.52
presentation attack detection 
PAD 
automated determination of a presentation attack 
3.53
radial distortion 
image imperfection where the degree of magnification varies with the distance from the optical axis 
3.54
red eye effect 
red glow from a subject’s eye caused by light from flash reflecting from blood vessels behind the retina 
3.55
subject 
individual who is to be displayed on the face portrait 
Note 1 to entry: If the face portrait is part of a Machine Readable Travel Document (MRTD), this individual is intended to be the holder of the MRTD. 

upper camel-case notation 
naming convention in which compound words are joined together without spaces and the first letter of every word is uppercase 
3.57
wavelength 
distance between repeating units of a wave pattern 
Note 1 to entry: Commonly designated by the Greek letter lambda ( $\lambda$$\lambda$lambda\lambda ). 
3.58
white light 
apparently colourless light on human perception 
EXAMPLE Ordinary daylight, standard lights as D50, D65, etc. 
Note 1 to entry: For many purposes it is assumed that white light contains all wavelengths of the visible spectrum at equal intensity based on human perception. Strong deviations from equal intensity usually lead to deviations in the perception of colours. 

For the purposes of this document, the abbreviated terms given in ISO/IEC 39794-1 and the following apply. 

ABC Automated Border Control 
CCD charge-coupled device 
CMOS complementary metal-oxide-semiconductor 
CSD camera to subject distance 
DOVID diffractive optically variable image device 
DPI dots per inch 
EMD eye-to-mouth distance 

A BDB conforms to this document if it satisfies all the relevant requirements related to: 

A system that produces biometric data records is conformant to this document if all biometric data records that it outputs conform to this document (as defined above) as claimed in the ICS associated with that system. A system does not need to be capable of producing biometric data records that cover all possible aspects of this document, but only those that are claimed to be supported by the system in the ICS. 

A system that uses BDBs is conformant to this document if it can read, and use for the purpose intended by that system, all BDBs that conform to this document (as defined above) as claimed in the ICS associated with that system. A system does not need to be capable of using BDBs that cover all possible aspects of this document, but only those that are claimed to be supported by the system in an ICS. 

The recorded image data shall appear to be the result of a capture process of a face. For the purpose of describing the position of each pixel within an image to be exchanged, a pair of reference axes shall be used. The origin of the axes, pixel location ( 0,0 ), shall be located at the upper left-hand corner of each image, which corresponds to the upper right-hand side of the forehead from the perspective of the capture subject. The $x$$x$xx-coordinate (horizontal) position shall increase positively from the origin to the right side of the image (i.e. left-hand forehead). The $y$$y$yy-coordinate (vertical) position shall increase positively from the origin to the bottom of the image. 

This clause describes the contents of data elements defined in this document. These semantic descriptions are independent of the encoding of the data elements. 

The presence of data elements is specified in Annex A. Certain data elements are optional. Such data elements need not be included in a BDB. An optional data element may be omitted altogether from the encoding. 

Application profiles as defined in Annex D may further restrict the presence of data elements. Such profiles may make optional elements mandatory, and they may exclude optional elements. 

In an ASN. 1 module, optional data elements are marked with the keyword OPTIONAL. When such an element is not present, then the tag, length and value octets of this data element are omitted from the tagged binary encoding. 

A data element in an XML schema definition is optional if the value of its min0ccurs attribute is 0 . When such an element is not present, the opening and closing tags as well as the value of this data element are omitted from the XML encoding. 

If all child elements of a data element are optional, this data element shall be marked optional as well. 
Type names are in upper camel-case notation derived from subclause titles in this clause. Element names are in lower camel-case notation derived from these subclause titles. If the generic name starts with a number, then this component is set to the end of the base name. In the XSD, type names will end with the word “Type”. 

EXAMPLE 1 The Image Colour Space element has the encoding name imageColourSpace and the type ImageColourSpace (in ASN.1) and ImageColourSpaceType (in XML). 

EXAMPLE 2 An element value with the abstract name colour coded light has the value colourCodedLight. An element value with the abstract name 48 bit RGB has the encoding value rgb48Bit. 

The order of the abstract data elements in 7.2 and beyond is derived from traversing the tree in Figure 1 from left to right, depth first. A formal description of the structure is given in Annex A. 1 for ASN. 1 and in Annex A. 2 for the XML encoding of these abstract data elements. 

Key 
elements which can be divided in sub-elements, not shown in this Figure 

Exclusive Or (XOR), one, and only one, option shall be chosen 
denotes that this element is defined in Clause 7.n 
The Figure has been manually generated, its content is informative. The normative structure is given in A. 1 for ASN. 1 and A. 2 for XML. 

Figure 1 - Face image data block 

For value measurement the following units are used: 

Unless otherwise specified, all other numeric values are unsigned integer quantities. 
The conversion of a numeric value to integer is given by rounding down if the fractional portion is less than 0,5 and rounding up if the fractional value is greater than or equal to 0,5 . 

The absence of an optional element means that the encoder does not provide any statement about the value of the element. 

Figure 2 - Example of embedding multiple representations in the same Face image data block 

Abstract values: None 
Contents: Each BDB shall pertain to a single subject and shall contain one or more representations of a human face. Together with the Version block, each BDB can contain one or more geometric representations in Representation blocks. The record structure is depicted in Figure 2. 

Abstract values: The abstract values for the Version block are defined in ISO/IEC 39794-1. 
Contents: The generation number of this document shall be 3. The year shall be the year of the publication of this document. 

If a BDB contains representations encoded using different versions of an extensible biometric data interchange format, then the version number of the most recent version of the encoding versions shall be used. 

Abstract values: None. 
Contents: A Representation block consists of a unique Representation identifier characterizing this Representation block, an Image representation block, a Capture date/time block, Quality blocks, a PAD data block, a Session identifier, an identifier to define a relationship to another record, called Derived from, a Capture device block, a Identity metadata block describing discernible characteristics of the subject, and the Landmark blocks. The structure of this element is shown in Figure 1. 

Multiple face image representations of the same biometric data subject may be described in the same Face image data block. This is accomplished by including multiple Representation blocks. Face image representations containing 2D data may be combined with face image representations containing 3D data. 

EXAMPLE The structure of a possible storage of Respresentaton blocks containing 2D and 3D data is illustrated in Figure 2. 

Abstract values: Integer. 
Contents: This element shall obtain a unique identifier for the Representation block. Each representation shall have its unique Representation identifier. 

NOTE Unlike other parts of the ISO/IEC 39794 series, this document requires Representation identifiers to link processed data to its original source. 

Abstract values: See Capture date/time block in ISO/IEC 39794-1. 
Contents: The Capture date/time block shall indicate when the capture of this representation started in Coordinated Universal Time (UTC). 

Abstract values: See Quality blocks in ISO/IEC 39794-1. 
Contents: This element contains information on the biometric sample quality. 

Abstract values: See PAD data block in ISO/IEC 39794-1. 
Contents: This element shall convey the mechanism used in biometric presentation attack detection and the results of the presentation attack detection mechanism. 

Abstract values: Integer. 
Contents: This element shall map the Representation block to the photo session where the face image was recorded. 

Abstract values: Integer. 
Contents: This element shall denote interdependencies when multiple representations are stored in a Face image data block. This is of particular interest in the case where post-processing has been used but may be used in case of all other image types, too. The value shall be the Representation identifier number of the original representation. 

To give an example for an application of this specification, assume that there are two Representations in the overall record. Their identifiers are 1 and 2. The first representation has been post-processed and resulted in the second representation. Then, the second representation shall have the Derived from element set to 1 . 

Abstract values: See Capture device block in ISO/IEC 39794-1. 
Contents: The Capture device block contains the Model identifier block and the Certification identifier blocks. 

Abstract values: See Model identifier block in ISO/IEC 39794-1. 
Contents: The Model identifier block shall identify the biometric organization that manufactures the product that created the BDB . It shall carry a CBEFF biometric organization identifier (see ISO/IEC 39794-1). Additionally, it shall identify the product type that created the BDB. It shall be assigned by the registered product manufacturer or other approved registration authority (see ISO/IEC 39794-1). 

Abstract values: See Certification identifier blocks in ISO/IEC 39794-1. 
Contents: This document does not contain details of certification schemes. 
NOTE Currently, no certification schemes are available for this document. 

Abstract values: For the structure see Figure 1. 
Contents: The Identity metadata block is intended to describe properties of the subject pictured in the image. The Identity metadata block consists of the Gender, Eye colour, Hair colour, and Subject height elements, the Properties block, the Expression block, and the Pose angle block. 
If all elements of this element are absent, the element itself shall be absent, too. 

Abstract values: The value of this element shall be one of the following: 

Contents: The Gender element shall represent the gender of the subject. 

Abstract values: The value of this element shall be one of the following: 

Contents: The Eye colour element shall represent the colour of the irises of the eyes. If the eyes have different colours, then the colour of the right eye shall be encoded. 

Abstract values: The value of this element shall be one of the following. 
Contents: $-$$-$quad-quad\quad-\quad unknown; 

Contents: The Hair colour element shall represent the colour of the hair of the subject. 

Abstract values: Integer. 
Contents: The Subject height element shall represent the height of the subject in millimetres. The minimum value for this element shall be 1 mm and the maximum value shall be 65535 mm . 

NOTE This value in most cases can only be used as a rough estimate of the subject height. Shoes, age, and even time of the day influence this measure. 

Abstract values: This element contains one or several of the following elements: 

Contents: The Properties block indicates which properties are present. There may be restrictions for different Face image kinds (see the profiles in Annex D). Each element may be true, false or absent. False elements do not need to be listed unless those elements are mandatory. 

Abstract values: This element contains one or several of the following items: 

Contents: The Expression block indicates which expressions are shown. Each element may be true, false or absent. False elements do not need to be listed unless those elements are mandatory. Neutral and smile shall not be both true for the same image. 

Key 
1 pitch § 
2 yaw $(\mathrm{Y})$$(\mathrm{Y})$(Y)(\mathrm{Y}) 
$3\mathrm{roll}(\mathrm{R})$$3\mathrm{roll}(\mathrm{R})$3roll(R)3 \operatorname{roll}(\mathrm{R})
The three elements together define the pose (Y, P, R). 

Figure 3 - Definition of pose angles with respect to the frontal view of the subject 

Abstract values: The Pose angle block contains Angle blocks for yaw, pitch, and roll. 
Contents: The Pose angle block shall represent the estimated or measured pose of the subject in the image. 
The angles encoded in this element are: 
Yaw angle block (Y): Rotation about the vertical (y) axis. The yaw angle Y is the rotation in degrees about the $y$$y$yy-axis (vertical axis) shown in Figure 3. Frontal poses have a yaw angle of $0^{\circ }$$0^{\circ }$0^(@)0^{\circ}. Positive angles represent faces looking to their left (a counter-clockwise rotation around the $y$$y$yy-axis). 
Pitch angle block ( P ): Rotation about the horizontal side-to-side ( x ) axis. The pitch angle P is the rotation in degrees about the x -axis (horizontal axis) shown in Figure 3. Frontal poses have a pitch angle of $0^{\circ }$$0^{\circ }$0^(@)0^{\circ}. Positive angles represent faces looking down (a counter-clockwise rotation around the x-axis). 

Roll angle block ®: Rotation about the horizontal back to front (z) axis. The roll angle R is the rotation in degrees about the z -axis (the horizontal axis from front to back) shown in Figure 3. Frontal poses have a roll angle of $0^{\circ }$$0^{\circ }$0^(@)0^{\circ}. Positive angles represent faces tilted toward their right shoulder (counter-clockwise rotation around the z-axis). A roll angle of $0^{\circ }$$0^{\circ }$0^(@)0^{\circ} denotes that the left and right eye centres have identical y coordinates. 
The angles are defined relative to the frontal pose of the subject, which has angles $(\mathrm{Y}=\mathrm{P}=\mathrm{R}=0)$$(\mathrm{Y}=\mathrm{P}=\mathrm{R}=0)$(Y=P=R=0)(\mathrm{Y}=\mathrm{P}=\mathrm{R}=0) as shown in Figure 3. The frontal pose is defined by the Frankfurt Horizon as the xz plane and the vertical symmetry plane as the yz plane with the z axis oriented in the direction of the face sight. Examples are shown in Figure 4. 

As order of the successive rotation around the different axes does matter, the encoded rotation angle shall correspond to an order of execution starting from the frontal view. This order shall be given by roll (about the front axis), then pitch (about the horizontal axis) and finally yaw (about the vertical axis). The (first executed) roll transformation will therefore always be in the image xy plane. 
From the point of view of executing a transformation from the observed view to a frontal view, the transformation order will therefore be in the opposite order: Yaw, pitch, and then roll. The encoded angles are from the frontal view to the observed view. The conversion to integer is specified in 7.1. 

Figure 4 - Examples of pose angles in the form ( $\mathrm{Y},\mathrm{P},\mathrm{R}$$\mathrm{Y},\mathrm{P},\mathrm{R}$Y,P,R\mathrm{Y}, \mathrm{P}, \mathrm{R} ) 

Abstract values: Angle value and Angle uncertainty. 
Contents: The Angle data block element contains an Angle value and its corresponding Angle uncertainty. 

Abstract values: Integer, the minimum value is -180 , the maximum value is 180 . 
Contents: The Angle value is given by Tait-Bryan angles (in degrees). 

Abstract values: The minimum value of an Angle uncertainty variable is 0 , the maximum value is 180 . 
Contents: The Angle uncertainty represents the expected degree of uncertainty of the associated pose angle. The more uncertain, the value of the uncertainty shall become larger. The Angle uncertainty allows storing an uncertainty or tolerance value for an angle. The true angle should be in a range of Angle value $\pm$$\pm$+-\pm Angle uncertainty. If the associated pose angle is absent, the Angle uncertainty for this angle shall be absent, too. 

Abstract values: None. 
Contents: The Landmark block specifies the type, code and position of landmarks in the face image. If the Landmark blocks element is present, it shall contain at least one Landmark block. A Landmark block consists of the Landmark kind element and the Landmark coordinates block. The structure of this element is shown in Figure 1. 

Landmarks can be specified as MPEG-4 feature points as given by ISO/IEC 14496-2:2004, Annex C or as anthropometric landmarks. The description of the anthropometric landmarks ${}^{[2]}$${}^{[2]}$^([2]){ }^{[2]} and their relation with the set of MPEG4 feature points is discussed in Table 2.
地標可指定為 ISO/IEC 14496-2:2004 附錄 C 所定義的 MPEG-4 特徵點，或指定為人體測量學地標。表 2 將討論人體測量學地標 ${}^{[2]}$${}^{[2]}$^([2]){ }^{[2]} 的描述及其與 MPEG4 特徵點集合的關聯。

Abstract values: MPEG4 feature point or anthropometric landmark.
抽象值：MPEG4 特徵點或人體測量學地標。
Contents: The Landmark kind shall either be MPEG4 feature point or anthropometric landmark. The Landmark code shall specify the landmark that is stored in the Landmark block element. The MPEG4 feature points are extended by eye and nostril landmarks
內容：地標類型應為 MPEG4 特徵點或人體測量學地標。地標代碼應指定儲存於地標區塊元素中的地標。MPEG4 特徵點已擴展包含眼部與鼻孔地標

References to right and left shall be taken from the perspective of the subject contained within an image. References to right shall mean the right side of the body from the perspective of the subject. References to the left shall mean the left side of the body from the perspective of the subject.
左右方向的參照應以影像中主體的視角為準。所謂「右」是指從主體視角所見的身體右側，「左」則是指從主體視角所見的身體左側。

Abstract values: See Figure 5 and Figure 6.
抽象數值：參見圖 5 與圖 6。
Contents: Figure 5 denotes the landmark codes associated with feature points as given by ISO/ IEC 14496-2:2004, Annex C. Each landmark can be written in the form A.B using a major $(\mathrm{A})$$(\mathrm{A})$(A)(\mathrm{A}) and a minor $(\mathrm{B})$$(\mathrm{B})$(B)(\mathrm{B}) value. Eye and nostril landmarks are contained as an addition to the MPEG4 feature points.
內容說明：圖 5 標示了 ISO/IEC 14496-2:2004 附錄 C 所定義之特徵點對應的地標代碼。各地標代碼可採用主值 $(\mathrm{A})$$(\mathrm{A})$(A)(\mathrm{A}) 與次值 $(\mathrm{B})$$(\mathrm{B})$(B)(\mathrm{B}) 組合的 A.B 形式表示。眼部與鼻孔地標為 MPEG4 特徵點的增補項目。

Key  關鍵點

Figure 5 - Feature points as specified in ISO/IEC 14496-2
圖 5 - ISO/IEC 14496-2 規範之特徵點

The eye centre landmarks 12.1 (left) and 12.2 (right) are defined to be the horizontal and vertical midpoints of the eye corners (3.7, 3.11) and (3.8, 3.12) respectively. The left nostril centre landmark 12.3 is defined to be the midpoint of the nose landmarks ( $9.1,9.15$$9.1,9.15$9.1,9.159.1,9.15 ) in the horizontal direction and ( $9.3,9.15$$9.3,9.15$9.3,9.159.3,9.15 ) in the vertical direction. Similarly, the right nostril centre landmark 12.4 is defined to be the midpoint of the nose landmarks ( $9.2,9.15$$9.2,9.15$9.2,9.159.2,9.15 ) in the horizontal direction and ( $9.3,9.15$$9.3,9.15$9.3,9.159.3,9.15 ) in the vertical direction. Both the eye centre and nostril centre landmarks are shown in Figure 6 and values given in Table 1.
眼睛中心地標 12.1（左）與 12.2（右）分別定義為眼角（3.7、3.11）和（3.8、3.12）的水平與垂直中點。左鼻孔中心地標 12.3 定義為鼻子地標（ $9.1,9.15$$9.1,9.15$9.1,9.159.1,9.15 ）水平方向與（ $9.3,9.15$$9.3,9.15$9.3,9.159.3,9.15 ）垂直方向的中點。同理，右鼻孔中心地標 12.4 定義為鼻子地標（ $9.2,9.15$$9.2,9.15$9.2,9.159.2,9.15 ）水平方向與（ $9.3,9.15$$9.3,9.15$9.3,9.159.3,9.15 ）垂直方向的中點。眼睛中心與鼻孔中心地標皆顯示於圖 6，數值列於表 1。

The landmarks 12.1, 12.2, 12.3, and 12.4 are defined to be the midpoints of MPEG features.
地標 12.1、12.2、12.3 和 12.4 被定義為 MPEG 特徵的中點。

Figure 6 - Eye and nostril centre landmarks
圖 6 - 眼睛與鼻孔中心地標

Table 1 - Eye and nostril centre landmark codes
表 1 - 眼睛與鼻孔中心地標代碼

Abstract values: See Table 2.
抽象值：參見表 2
Contents: Anthropometric landmarks denote feature points that are used in forensics and anthropology for recognition of individuals via two face images or image and skull over a long time. They also allow specification of points that are in use by criminal examiners and anthropologists ${}^{[2]}$${}^{[2]}$^([2]){ }^{[2]}.
內容：人體測量學地標是指用於法醫學和人類學中，透過兩張臉部圖像或長時間的圖像與頭骨進行個體識別的特徵點。這些點也允許刑事鑑識人員和人類學家指定使用的特徵點 ${}^{[2]}$${}^{[2]}$^([2]){ }^{[2]} 。

Figure 7 and Table 2 show the definition of the Anthropometric landmarks. The set of points represents the craniofacial landmarks of the head and face. The latter are used in forensics for “face to face” and “skull to face” identification. Some of these points have MPEG 4 counterparts, others not.
圖 7 和表 2 展示了人體測量學地標的定義。這組點代表頭部和臉部的顱面地標。後者在法醫學中用於「臉對臉」和「頭骨對臉」的識別。其中一些點有對應的 MPEG 4 標準點，其他則沒有。
There are three different possibilities to encode an Anthropometric landmark:
有三種不同的方式來編碼一個人體測量學地標：
Firstly, each Anthropometric landmark may be notated in the form A.B. A specifies the global landmark of the face to which this landmark belongs such as nose, mouth, etc. B specifies the particular point. In case a landmark has two symmetrical entities (left and right) the right entity always has a greater and even minor code value. Hence, all landmarks from the left part of the face have odd minor codes, and from the right part - even minor codes.
首先，每個人體測量學地標可以以 A.B 的形式標記。A 指定該地標所屬的臉部全局地標，例如鼻子、嘴巴等。B 指定特定點。如果一個地標有兩個對稱實體（左和右），右側實體總是具有較大且偶數的次要代碼值。因此，臉部左側的所有地標具有奇數次要代碼，而右側則為偶數次要代碼。
Secondly, each Anthropometric landmark may be notated by its name. In case a landmark has two symmetrical entities (left and right) a “left” or “right” shall be added to the names in Table 2.
其次，每個體測地標可以透過其名稱來標記。若某個地標具有左右對稱的兩個實體（左側與右側），則應在表 2 的名稱中加上「左」或「右」。
Thirdly, each Anthropometric landmark may be notated by its point identifier. In case a landmark has two symmetrical entities (left and right) a “left” or “right” shall be added to the names in Table 2.
第三，每個體測地標可以透過其點識別碼來標記。若某個地標具有左右對稱的兩個實體（左側與右側），則應在表 2 的名稱中加上「左」或「右」。

Figure 7 - Anthropometric landmarks
圖 7 - 人體測量地標

Table 2 - Definitions of the anthropometric landmarks
表 2 - 人體測量地標定義

Table 2 (continued)  表 2（續）

Table 2 (continued) 

Abstract values: None. 
Contents: The Landmark coordinates block shall contain the coordinates of the associated landmark in the 2D Cartesian coordinate system (in case of 2D image representation block existence), in a Coordinate texture image block, or in a 3D Cartesian coordinate system (in case of 3D image representation block existence). 

In 2D Image representation blocks, the Z coordinate of the Cartesian coordinate system is not used. This element shall then contain the horizontal and vertical position of the associated landmark. They are measured in pixels with values from 0 to width- 1 and from 0 to height-1. The Coordinate texture image block consists of the two integer values uInPixel and vInPixel. In 3D Shape representation blocks, the X, Y, and Z coordinates are mandatory and defined in the 3D Cartesian coordinate system. The $X,Y$$X,Y$X,YX, Y, and Z coordinates are non-negative integers. The landmarks are converted to metric Cartesian coordinates using the Cartesian scales and offsets block. The error of the Z coordinate of an anthropometric landmark location should be no greater than 3 mm . The point shall withstand from the nearest point on the surface no further than 3 mm . 

Abstract values: Either 2D image representation block, or 3D shape representation block. 
Contents: The Image representation block contains the image data and metadata. It is either a 2D image representation block or a 3D shape representation block. 

Abstract values: None. 
Contents: The 2D image representation block contains the 2D representation data, the 2D image information block, and the 2D capture device block. 

Abstract values: Octet string. 
Contents: The 2D representation data element shall contain the encoded image data in accordance with the value of the Image data format element. 

Abstract values: None. 
Contents: The 2D capture device block consists of the 2D capture device spectral block and the 2D capture device technology identifier. 

Abstract values: The possible values are: 

Contents: Many different types of capture devices work in the near infrared, thermal, or white light spectral range. The 2D capture device spectral block indicates whether the capture device technology uses one or more of these spectral ranges. 

Abstract values: The possible values are: 

Contents: The 2D capture device technology identifier shall indicate the device technology used to acquire the captured biometric sample. 

Abstract values: None. 
Contents: The 2D image information block element is intended to describe digital properties of the 2D representation data. 

The 2D image information block consists of the Image data format, the 2D face image kind, the Post-acquisition processing block, the Lossy transformation attempts element, the Camera to subject distance, the Sensor diagonal, the Lens focal length, the Image size block, the Image face measurements block, the Image colour space element, and the Reference colour mapping block. The structure of this element is shown in Figure 1. 

Abstract values: See Table 3 for a list of allowed 2D face image kinds and their normative requirements. Other application specific image types may be added in the future. 

Contents: The 2D face image kind element shall represent the type of the face image stored in the 2D representation data. There are several types according to the chosen application specific profile (see Annex D), additional profiles may be included in future versions of this document. 

Table 3-2D face image kinds 

Abstract values: The values of this block shall be one or more of the following: 

There may be restrictions on the allowed values by the choice of the 2D face image kind. 
Contents: This element contains notifications on potential post acquisition processing steps. 
While the alteration of face image data is discouraged, there are cases when no alternative may exist: 

The Post acquisition processing block allows the specification of the kind of post processing that has been applied to the original captured image. 
On the one hand a captured image might need some post-processing so that the resulting representation conforms to the requirements of this document. On the other hand, these processing steps should be minimal and not distort the characteristics of the original image. 

Abstract values: Unknown, 0,1 , more than 1 . 
Contents: This element counts the number of previous lossy transformation steps. 

Abstract values: The values shall be specified according to Table 4. 
Contents: The Image data format denotes the encoding type of the 2D representation data and of the 3D texture map. 

For lossless compression PNG or JPEG2000 lossless shall be used. For lossless representation of images using more than 8 bits per channel PNG or JPEG2000 lossless shall be used. For lossy representation of images using more than eight bit per channel JPEG2000 shall be used. For an encoding in Netpbm portable binary the image formats P5 (grey, PGM) and P6 (colour, PPM) shall be used. 

Table 4 - Image data format codes 

If the Image data format value is unknown or other or a later-version extension code, then the Image size block (with width and height) shall be included. 

In the event that a greyscale face image is encoded in the Netpbm portable greyscale binary image format (PGM), the format definition is as follows: 

A PGM encoded greyscale face image shall be encoded in a P5 format. 
In the event that a colour face image is encoded in the Netpbm portable colour binary image format (PPM), the format definition is as follows: 

A PPM encoded colour face image shall be encoded in a P6 format. 

Abstract values: Integer. 
Contents: The Camera to subject distance (CSD) element contains the camera to subject distance of the photographical setup used for capturing the photo in millimetres. The maximum CSD to be encoded is 50000 mm . All larger distances shall by encoded using that maximum value. 

Abstract values: Integer. 
Contents: The Sensor diagonal element contains the diagonal length of the camera sensor used for capturing the photo in millimetres. The maximum Sensor diagonal to be encoded is 2000 mm . All larger distances shall by encoded using that maximum value. If a zoom lens is used, this data element shall encode the actual focal length used to capture the image. 

Figure 8 illustrates the relative sizes of some commonly available image sensors. Table 5 provides the approximate widths, heights, areas, diagonals, and crop factors for these sensors. The dimensions in Table 5 are approximates and serve as examples. 

Figure 8 - Typical sensors and their relation in size to the traditional full frame 

It might be noted that, by gathering more light, a larger image sensor will provide typically lower image noise, and a fixed focal length lens will generally provide a higher image quality than a zoom lens of the same focal length. Moreover, by using a fixed focal length lens, the problem of inadvertent change to the zoom ratio (i.e., the field of view) can be avoided. 

Table 5 - Typical image sensor sizes and corresponding crop factors 

Abstract values: Integer. 
Contents: The Lens focal length element contains the focal length of the camera lens used for capturing the photo in millimetres. The maximum Lens focal length to be encoded is 2000 mm . All larger distances shall by encoded using that maximum value. 

Abstract values: None. 
Contents: The Image size block consists of the Width and the Height element. 

Abstract values: Integer. 
Contents: The Width element shall specify the number of pixels of the 2D representation data in the horizontal direction. 

Abstract values: Integer. 
Contents: The Height element shall specify the number of pixels of the 2D representation data in the vertical direction. 

Abstract values: None. 
Contents: For specific application domains different minimal spatial sampling rates of the interchange data may be required. For example, using higher spatial sampling rate images allow for specific human as well as machine inspection methods that depend on the analysis of very small details. 

The Image face measurements block consists of four elements. If the number of pixels across the width of the head shall be encoded the Image head width may be used. If the number of pixels across the length of the head shall be encoded the Image head length may be used. If the inter-eye distance shall be encoded the Image inter-eye distance data element may be used. If the eye-to-mouth distance shall be encoded the Image eye-to-mouth distance data element may be used. If necessary, all four elements may be used. 

Abstract values: Integer. 
Contents: The Image head width element provides information on the number of pixels in the image across the width of the head. The head width ( W ) is defined in Figure 9. 

a) Abstract geometric characteristics 

b) Sample 

A image width 
B image height 
W head width 
L head length 
V vertical centre line 
H horizontal centre line 
M face centre 

Figure 9 - Abstract geometric characteristics of a portrait applied to a sample 

NOTE The typical inter-eye distance is approximately half of the head width. 

Abstract values: Integer. 
Contents: The Image inter-eye distance element provides information on the number of pixels in the image between the eye centres (feature points 12.1 and 12.2). For an explanation of the inter-eye distance see Figure 10. The value of this element shall be the number of pixels between the eye centres. 

Key 
1 eye centre 
2 inner canthus 
3 outer canthus 
4 Inter-eye distance 

Figure 10 - Inter-eye distance (IED) measurement 

NOTE Be aware that the eye centre is not necessarily the centre of the pupil. 
NOTE A typical real IED (distance measured at the face) is between 60 mm and 65 mm . 

Abstract values: Integer. 
Contents: The Image eye-to-mouth distance element provides information on the number of pixels in the image between the mouth and the eyes. The value of this element shall be the number of pixels between the midpoint of the line connecting the eye centres (feature points 12.1 and 12.2) and the mouth (feature point 2.3). 

Abstract values: Integer. 
Contents: The Image head length element provides information on the number of pixels in the image from the chin to crown, or length, of the head. The head length ( L ) is defined in Figure 9. The value of this element shall be the number of pixels across the length of the head. 

Abstract values: The value of this element shall be one of the following: 

Contents: The Image colour space element indicates the colour space used in the encoded 2D or 3D image information block. RGB encoding is recommended. The ICC profile should be embedded inside the Texture map data (if applicable), as JPEG and PNG formats allow ICC profile encoding. 

Abstract values: None. 
Contents: Mapping of reference colours like in IEC 61966-8. This data element contains the name of the applied Reference colour schema, like IEC 61966-8, and a list of Reference colour definition and value blocks. 

Abstract values: Octet string. 
Contents: This data element contains the name of the applied Reference colour schema, like IEC 61966-8. 

Abstract values: Two octet strings. 
Contents: These data elements contain pairs of elements consisting of a Reference colour definition like “J 14” in the IEC case, and the respective Reference colour value in the given face portrait. 

Abstract values: None. 
Contents: The 3D shape representation block contains the 3D representation data, the 3D image information block, and the 3D capture device block. The structure of the 3D shape representation block is shown in Figure 1. 

Abstract values: Octet string. 
Contents: The 3D representation data element shall contain the image data in a vertex representation. The 3D representation kind (vertex) shall be specified in the 3D representation kind element. 

Abstract values: None. 
Contents: In analogy to the 2D capture device block in the 2D image representation block, where the source of the 2D data can be coded, the 3D capture device block should be used to indicate the device that was used to acquire the 3D data. 
The 3D capture device block consists of the 3D modus element and the 3D capture device technology identifier 3D element. 
If all elements of the 3D capture device block are absent the 3D capture device block element shall be absent. 

Abstract values: The value of this element shall be one of the following: 

Contents: This element describes the manner in which the 3D image is acquired. 

Abstract values: The value of this element shall be one of the following: 

Contents: This element contains information on the technology used in the capture device used. 
NOTE Some of the listed 3D capture device technology identifier abstract values are incompatible with a 3D modus value of passive. 

Abstract values: None. 
Contents: The 3D image information block consists of the the 3D representation kind block, the 3D coordinate system, the 3D Cartesian scales and offsets block, the Image colour space (see 7.52), the 3D face image kind, the Image size block (see 7.44), the 3D physical face measurements block, the Post acquisition processing block (see 7.38), and the 3D texture map block. The structure of this element is shown in Figure 1. 

Abstract values: Vertex. 
Contents: The 3D representation kind block shall contain the name of the encoding schema used for the 3D representation data, which is 3D vertex block for this version of this document. 
3D vertex block codes 3D points based on a non-regular sampling interval, typically resulting in a sparse coding. Due to variable sampling of the vertex points the vertex representation on the one hand can result in very compact representations or in a very exact representation when using many vertices. 

Abstract values: None. 
Contents: The 3D vertex block consists of at one or more 3D vertex information blocks, and one or more 3D vertex triangle data blocks. 

The Coordinate system type for vertex data shall be Cartesian. All Cartesian coordinates shall be non-negative integer. After application of Cartesian scales and offsets, the Cartesian coordinates become metric Cartesian coordinates which can be negative and positive and decimal. 
The origin of the metric Cartesian coordinates is defined. For example, this origin is linked to landmarks like the middle of the 2 eyes for the 3D textured image application profile, or like to the top of the nose. 
The scale is defined to be in conformity with the 3D textured image resolution block. 

Abstract values: None. 
Contents: The 3D vertex information block consists of the 3D vertex coordinates block, the 3D vertex identifier, the 3D vertex normals block, the 3D vertex textures block, and the 3D error map elements. 

Abstract values: 3D coordinate Cartesian unsigned short block, see ISO/IEC 39794-1. 
Contents: The location of each vertex is represented by its X coordinate, Y coordinate, and Z coordinate. 

Abstract values: Integer. 
Contents: This element shall obtain a unique identifier for the associated vertex. Each two vertices in a record shall have different identifiers. 

NOTE If the 3D vertex identifier is absent for a vertex, it is impossible to refer to it in the 3D vertex triangle data block. 

Abstract values: 3D coordinate Cartesian unsigned short block, see ISO/IEC 39794-1. 
Contents: The 3D vertex normals block contains the normal $X$$X$XX, normal $Y$$Y$YY and normal $Z$$Z$ZZ coordinate elements. 

Abstract values: 2D coordinate Cartesian unsigned short block, see ISO/IEC 39794-1. 
Contents: The vertex texture X and vertex texture Y fields represent the corresponding x and y pixel position in the 3D texture map block with $(0,0)$$(0,0)$(0,0)(0,0) denoting the upper left corner. 

Abstract values: Octet string. 
Contents: The 3D error map can be used to give further information on how the 3D data has been processed before it was stored in the 3D representation. The 3D error map shall be coded in the PNG format using an 8 bit per pixel greyscale image. The length of the map is variable, as it depends on the lossless compression algorithm. 
Pixel values $t$$t$tt in the range of 0 to 199 and 206 to 255 are reserved for future use. A value of $t=200$$t=200$t=200t=200 codes that the depth value is considered to be correct. Values of $t\ge 201$$t\ge 201$t >= 201t \geq 201 code a specific potential or corrected defect of the 3D data or the corresponding texture image. See Table 6 for an enumerated list of possible values. 

Table 6-3D error map values 

Abstract values: None. 
Contents: The 3D vertex triangle data block contains a list of triangle descriptions. Each triangle is specified by the three indices (Triangle index 1, Triangle index 2, and Triangle index 3 ) of the vertices in the vertex data list forming the triangle. The order of the vertex indices shall be counter clock wise to indicate the external face of the triangle. 

Abstract values: 3D Cartesian coordinate system. 
Contents: This element contains information on the coordinate system used. 
Originally, 3D data is acquired in a device dependent coordinate system. Based on the knowledge about several device parameters the 3D data can be transformed in Cartesian coordinates. This transformation may involve rotation, translation and resampling. Efforts must be made to preserve the precision of the original data as intended by this document and defined by the 3D textured image resolution block. 
This document supports the Cartesian coordinate system for all encodings. 
The transformation to metric world coordinates is described by appropriate scaling factors and implicit rules (e.g. as used in the anthropometric landmark type). 

Abstract values: None. 
Contents: In the 3D Cartesian coordinate system, the point of origin must be defined in order to get positive encoding of XYZ coordinates. 
Figure 11 shows two examples of a metric Cartesian coordinate system. In the left, a sample of a Cartesian coordinate system with the origin on the tip of the nose is shown. The XZ plane is defined parallel to the Frankfurt Horizon. In the right, a sample of a metric Cartesian coordinate system with the origin at the middle of the two eyes is given. The XZ plane passes the horizontal gaze axis. This metric Cartesian coordinate system is used by the 3D textured face image application profile. The X axis leads from right eye to left eye, the Z axis is in Horizontal eye direction, looking straight forward in rest position. 

X, Y, Z coordinate axes 
FH Frankfurt Horizon 
0 coordinate origin 
Figure 11 - Samples of Cartesian coordinate systems 

Abstract values: Real. 
Contents: ScaleX, ScaleY, ScaleZ, OffsetX, OffsetY and OffsetZ are needed to transform digital coordinates to metric coordinates. The scale values have no dimension, the offset values are given in millimetres. 
The transformation from Cartesian coordinates to metric Cartesian coordinates is derived as follows: 

There is a strong relation between anthropometric landmarks and the metric Cartesian coordinate system, as the landmarks define the origin and the orientation. 

For certain 3D face image kinds, the origin of the metric Cartesian coordinate system can be the midpoint between the left eye centre (12.1) and the right eye centre (12.2), or can be also the nose (prn). 

For certain 3D face image kinds, the orientation of the Cartesian system is linked to the pose of the head. One example is the frontal pose which is defined by the Frankfurt Horizon as the xz plane and the vertical symmetry plane as the yz plane with the z axis oriented in the direction of the face sight. Another example is the rest position (gaze looking straight forward) with the $xz$$xz$xzx z plane passing the two eye centres, and the horizontal gaze axis, vertical symmetry plane as the yz plane with the z axis oriented in the direction of the face sight. 

Large values of ScaleX, ScaleY or ScaleZ indicate a low spatial sampling rate in the respective dimension. Boundary values of ScaleX, ScaleY and ScaleZ may be strongly restricted for different 3D face image kinds. 

Abstract values: None. 
Contents: The 3D face image kind element shall represent the type of the face image stored in the 3D representation data. See Table 7 for a list of allowed image types and their normative requirements. 

Table 7 - 3D Face image kind codes 

Abstract values: None. 
Contents: For specific application domains different minimal spatial sampling rates of the interchange data may be required. For example, using higher spatial sampling rate images allow for specific human as well as machine inspection methods that depend on the analysis of very small details. 
The 3D physical face measurements block consists of four elements. If the width of the head shall be encoded the 3D physical head width may be used. If the length of the head shall be encoded the 3D physical head length may be used. If the inter-eye distance shall be encoded the Physical inter-eye distance may be used. If the eye-tomouth distance shall be encoded the 3D physical eye-to-mouth distance may be used. If necessary, all four elements may be used. All measures shall be given in millimetres. See 7.48 for equivalent definitions for pixel measurements in 2D images. 

Abstract values: Integer. 
Contents: The 3D physical head width element provides information on the width of the head in millimetres. 

Abstract values: Integer. 
Contents: The 3D physical inter-eye distance element provides information on the distance between the eye midpoints in millimetres. 

Abstract values: Integer. 
Contents: The 3D physical eye-to-mouth distance element provides information on the distance between the mouth and the eyes in millimetres, more precise, between the midpoint of the line connecting the eye centres (feature points 12.1 and 12.2) and the mouth (feature point 2.3). 

Abstract values: Integer. 
Contents: The 3D physical head length element provides information on the distance from the chin to crown, or length, of the head, in millimetres. 

Abstract values: None. 
Contents: The 3D textured image resolution block consists of MM shape [X/Y/Z] resolution, 3D MM texture resolution, 3D texture acquisition period, and 3D face area scanned. 

Abstract values: Real (Decimal). 
Contents: The 3D MM shape X resolution, the 3D MM shape Y resolution, and the 3D MM shape Z resolution define the minimal distance acquired by the shape acquisition system in millimetres. These resolutions may be different compared with the MM texture resolution value. 

Abstract values: Real (Decimal). 
Contents: The 3D MM texture resolution defines the minimal distance acquired by the texture acquisition system in mm. This resolution may be different compared with the 3D MM shape [X/Y/Z] resolution values. 

Abstract values: Real (Decimal). 
Contents: The 3D texture acquisition period defines the time in milliseconds used for shape and texture acquisition. During this period neither the acquisition system nor the subject shall move or be moved. 

Abstract values: The value of this element shall be one or more of the following: 

Contents: The 3D face area scanned shall indicate the area scanned of the face. The minimum allowed 3D face area scanned is Front of the head. 

Abstract values: None. 
Contents: The 3D texture map block consists of the 3D texture map data, the Image data format, the 3D texture capture device spectral block, the 3D texture standard illuminant, and the 3D error map (See 7.70) elements. 

The 3D texture map block should only be used to store face texture data that is acquired by a scanning device during the 3D acquisition process, and therefore may have a different geometry than the 2D representation data stored in the same BDB. It is not a substitute for the 2D representation data. The 3D texture map shall be coded in 8 bit or 16 bit greyscale or as a 24 bit colour image. The length of the map is variable as it depends on the applied compression algorithm. 

Abstract values: The value of this element shall be one of the following: 

Contents: The 3D texture capture device spectral block denotes the kind of spectrum that has been used for acquiring the 3D texture map. This spectrum may differ from the one used for 2D image representation data. 

Abstract values: The value of this element shall be one of the following: 

Contents: Illumination according to one of the standard illuminants defined in ISO 11664-2 or similar. 

Abstract values: Octet string. 
Contents: The 3D texture map data shall contain the face texture data acquired by a capture device during the 3D acquisition process. The 3D texture map data element shall have the format specified in the Image data format element. 

The tagged binary encoding as well as the XML encoding is given in this clause and Annex A, respectively. In order to aid recognition of abstract values, the same lower camel-case notation is used for abstract data elements in the ASN. 1 module and in the XSD. The lower camel-case names are derived from the abstract values given here. 

The names of the ASN. 1 module and of the XML schema definition (available at http://standards.iso org/iso-iec/39794/-5/ed-1/en) are iso-iec-39794-5-ed-1-v1.asn and iso-iec-39794-5-ed-1-v1.xsd, respectively. 

Content and semantics of parameters of ISO/IEC 19794-5 (2011 edition) served as starting point for this document. The syntax has been modified to accommodate new requirements, and many parameters have been added allowing the encoding of many more properties of face images than before. 

Most of the face image data record parameters are considered as optional to allow application specific profiles and efficient storage of the available data. 

The 3D encoding types 3D point map and range image are not supported by this version of this document. 

This clause specifies the ASN. 1 module implementing the abstract data elements specified in Clause 7. It describes the parameters of face image data as they are encoded in ASN.1. These ASN. 1 definitions are based on the following design decisions: 

The ASN. 1 module in A. 1 is available at http://standards.iso.org/iso-iec/39794/-5/ed-1/en. 
Additional explanations on the mapping between the specifications in Clause 7 and the ASN. 1 module given in A. 1 apply: 

Encoding examples are contained in Annex B. 

Annex A. 2 specifies an XSD schema, in which the abstract data elements of Clause 7 are constrained by XML types defined within one of the following standards: W3C Recommendations, XML Schema Parts 1 and 2, ISO/IEC 39794-1, or this document. 

Binary data shall only be encoded as base 64 and stored as a text string in an element, which itself has the underlying type of xs:base64Binary, for example: <xs:element name=“data” type=“xs:base64Binary”/> 

For avoidance of doubt other methods of encoding binary data such as xs:hexBinary or proprietary extensions which support binary data encoding (i. e.: XOP) are not permitted. 

Additional explanations on the mapping between the specifications in Clause 7 and the XSD given in A. 2 apply: 

The XSD module in A. 2 can be retrieved from http://standards.iso.org/iso-iec/39794/-5/ed-1/en. 
Encoding examples are contained in Annex B. 

The registrations listed in Table 8 have been made in accordance with ISO/IEC 19785 (all parts) ${}^{[31]}$${}^{[31]}$^([31]){ }^{[31]} to identify the face image data interchange formats defined in this document. The format owner is ISO/ IEC JTC 1/SC 37 with the registered biometric organization identifier 257 (0101Hex). 

Table 8 - BDB format identifiers 

This ASN. 1 module is available at http://standards.iso.org/iso-iec/39794/-5/ed-1/en 

ISO-IEC-39794-5-ed-1-v1 {iso(1) standard(0) iso-iec-39794(39794) part-5(5) ed-1(1) v1(1)
iso-iec-39794-5(0) }
-- Use of ISO/IEC copyright in this Schema is licensed for the purpose of
-- developing, implementing, and using software based on this Schema, subject
-- to the following conditions:
--
-- * Software developed from this Schema must retain the Copyright Notice,
-- this list of conditions and the disclaimer below ("Disclaimer").
--
-- * Neither the name or logo of ISO or of IEC, nor the names of specific
-- contributors, may be used to endorse or promote software derived from
-- this Schema without specific prior written permission.
--
-- * The software developer shall attribute the Schema to ISO/IEC and
-- identify the ISO/IEC standard from which it is taken. Such attribution
-- (e.g., "This software makes use of the Schema from ISO/IEC 39794-5
-- within modifications permitted in the relevant ISO/IEC standard.
-- Please reproduce this note if possible."), may be placed in the
-- software itself or any other reasonable location.
-- The Disclaimer is:
-- THE SCHEMA ON WHICH THIS SOFTWARE IS BASED IS PROVIDED BY THE COPYRIGHT
-- HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
-- INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-- AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
-- THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-- THE CODE COMPONENTS, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DEFINITIONS IMPLICIT TAGS ::= BEGIN
    IMPORTS
        VersionBlock,
        CaptureDateTimeBlock,
        QualityBlocks,
        PADDataBlock,
        CoordinateCartesian2DUnsignedShortBlock,
        CoordinateCartesian3DUnsignedShortBlock,
        RegistryIdBlock,
        CertificationIdBlocks
    FROM ISO-IEC-39794-1-ed-1-v1;
    FaceImageDataBlock ::= [APPLICATION 5] SEQUENCE {
        versionBlock [0] VersionBlock,
        representationBlocks [1] RepresentationBlocks,
    }

RepresentationBlocks ::= SEQUENCE OF RepresentationBlock
RepresentationBlock ::= SEQUENCE {
    representationId [0] INTEGER (0..MAX),
    imageRepresentation [1] ImageRepresentation,
    captureDateTimeBlock [2] CaptureDateTimeBlock OPTIONAL,
    qualityBlocks [3] QualityBlocks OPTIONAL,
    padDataBlock [4] PADDataBlock OPTIONAL,
    sessionId [5] INTEGER (0..MAX) OPTIONAL,
    derivedFrom [6] INTEGER (0..MAX) OPTIONAL,
    captureDeviceBlock [7] CaptureDeviceBlock OPTIONAL,
    identityMetadataBlock [8] IdentityMetadataBlock OPTIONAL,
    landmarkBlocks [9] LandmarkBlocks OPTIONAL,
}
CaptureDeviceBlock ::= SEQUENCE {
    modelIdBlock [0] RegistryIdBlock OPTIONAL,
    certificationIdBlocks [1] CertificationIdBlocks OPTIONAL,
}
IdentityMetadataBlock ::= SEQUENCE {
    gender [0] Gender OPTIONAL,
    eyeColour [1] EyeColour OPTIONAL,
    hairColour [2] HairColour OPTIONAL,
    subjectHeight [3] SubjectHeight OPTIONAL,
    propertiesBlock [4] PropertiesBlock OPTIONAL,
    expressionBlock [5] ExpressionBlock OPTIONAL,
    poseAngleBlock [6] PoseAngleBlock OPTIONAL,
}
GenderCode ::= ENUMERATED {
    unknown (0),
    other (1),
    male (2),
    female (3)
}
GenderExtensionBlock ::= SEQUENCE {
    fallback [0] GenderCode,
}
Gender ::= CHOICE {
    code [0] GenderCode,
    extensionBlock [1] GenderExtensionBlock
}
EyeColourCode ::= ENUMERATED {
    unknown (0),
    other (1),
    black (2),
    blue (3),
    brown (4),
    grey (5),
    green (6),
    hazel (7),
    multi-coloured (8),
    pink (9)
}
EyeColourExtensionBlock ::= SEQUENCE {
    fallback [0] EyeColourCode,
}
EyeColour ::= CHOICE {
    code [0] EyeColourCode,
    extensionBlock [1] EyeColourExtensionBlock

}
HairColourCode ::= ENUMERATED
    unknown (0),
    other (1),
    bald (2),
    black (3),
    blonde (4),
    brown (5),
    grey (6),
    white (7),
    red (8),
    knownColoured (9)
}
HairColourExtensionBlock ::= SEQUENCE {
    fallback [0] HairColourCode,
}
HairColour ::= CHOICE {
    code [0] HairColourCode,
    extensionBlock [1] HairColourExtensionBlock
}
SubjectHeight ::= INTEGER (1..65535)
PropertiesBlock ::= SEQUENCE {
    glasses [0] BOOLEAN OPTIONAL,
    moustache [1] BOOLEAN OPTIONAL,
    beard [2] BOOLEAN OPTIONAL,
    teethVisible [3] BOOLEAN OPTIONAL,
    pupilOrIrisNotVisible [4] BOOLEAN OPTIONAL,
    mouthOpen [5] BOOLEAN OPTIONAL,
    leftEyePatch [6] BOOLEAN OPTIONAL,
    rightEyePatch [7] BOOLEAN OPTIONAL,
    darkGlasses [8] BOOLEAN OPTIONAL,
    biometricAbsent [9] BOOLEAN OPTIONAL,
    headCoveringsPresent [10] BOOLEAN OPTIONAL,
}
ExpressionBlock ::= SEQUENCE {
    neutral [0] BOOLEAN OPTIONAL,
    smile [1] BOOLEAN OPTIONAL,
    raisedEyebrows [2] BOOLEAN OPTIONAL,
    eyesLookingAwayFromTheCamera [3] BOOLEAN OPTIONAL,
    squinting [4] BOOLEAN OPTIONAL,
    frowning [5] BOOLEAN OPTIONAL,
}
PoseAngleBlock ::= SEQUENCE {
    yawAngleBlock [0] AngleDataBlock OPTIONAL,
    pitchAngleBlock [1] AngleDataBlock OPTIONAL,
    rollAngleBlock [2] AngleDataBlock OPTIONAL
}
AngleDataBlock ::= SEQUENCE {
    angleValue [0] AngleValue,
    angleUncertainty [1] AngleUncertainty OPTIONAL,
}
AngleValue ::= INTEGER (-180..180)
AngleUncertainty ::= INTEGER (0..180)
LandmarkBlocks ::= SEQUENCE OF LandmarkBlock
LandmarkBlock ::= SEQUENCE {

    landmarkKind [0] LandmarkKind,
    landmarkCoordinates [1] LandmarkCoordinates OPTIONAL,
}
LandmarkKind ::= CHOICE {
    base [0] LandmarkKindBase,
    extensionBlock [1] LandmarkKindExtensionBlock
}
LandmarkKindBase ::= CHOICE {
    mpeg4FeaturePoint [0] MPEG4FeaturePoint,
    anthropometricLandmark [1] AnthropometricLandmark
}
LandmarkKindExtensionBlock ::= SEQUENCE {
}
MPEG4FeaturePointCode ::= ENUMERATED {
    mpeg4PointCode-02-01 (0),
    mpeg4PointCode-02-02 (1),
    mpeg4PointCode-02-03 (2),
    mpeg4PointCode-02-04 (3),
    mpeg4PointCode-02-05 (4),
    mpeg4PointCode-02-06 (5),
    mpeg4PointCode-02-07 (6),
    mpeg4PointCode-02-08 (7),
    mpeg4PointCode-02-09 (8),
    mpeg4PointCode-02-10 (9),
    mpeg4PointCode-02-11 (10),
    mpeg4PointCode-02-12 (11),
    mpeg4PointCode-02-13 (12),
    mpeg4PointCode-02-14 (13),
    mpeg4PointCode-03-01 (14),
    mpeg4PointCode-03-02 (15),
    mpeg4PointCode-03-03 (16),
    mpeg4PointCode-03-04 (17),
    mpeg4PointCode-03-05 (18),
    mpeg4PointCode-03-06 (19),
    mpeg4PointCode-03-07 (20),
    mpeg4PointCode-03-08 (21),
    mpeg4PointCode-03-09 (22),
    mpeg4PointCode-03-10 (23),
    mpeg4PointCode-03-11 (24),
    mpeg4PointCode-03-12 (25),
    mpeg4PointCode-03-13 (26),
    mpeg4PointCode-03-14 (27),
    mpeg4PointCode-04-01 (28),
    mpeg4PointCode-04-02 (29),
    mpeg4PointCode-04-03 (30),
    mpeg4PointCode-04-04 (31),
    mpeg4PointCode-04-05 (32),
    mpeg4PointCode-04-06 (33),
    mpeg4PointCode-05-01 (34),
    mpeg4PointCode-05-02 (35),
    mpeg4PointCode-05-03 (36),
    mpeg4PointCode-05-04 (37),
    mpeg4PointCode-06-01 (38),
    mpeg4PointCode-06-02 (39),
    mpeg4PointCode-06-03 (40),
    mpeg4PointCode-06-04 (41),
    mpeg4PointCode-07-01 (42),
    mpeg4PointCode-08-01 (43),
    mpeg4PointCode-08-02 (44),
    mpeg4PointCode-08-03 (45),
    mpeg4PointCode-08-04 (46),
    mpeg4PointCode-08-05 (47),
    mpeg4PointCode-08-06 (48),
    mpeg4PointCode-08-07 (49),
    mpeg4PointCode-08-08 (50),

    mpeg4PointCode-08-09 (51),
    mpeg4PointCode-08-10 (52),
    mpeg4PointCode-09-01 (53),
    mpeg4PointCode-09-02 (54),
    mpeg4PointCode-09-03 (55),
    mpeg4PointCode-09-04 (56),
    mpeg4PointCode-09-05 (57),
    mpeg4PointCode-09-06 (58),
    mpeg4PointCode-09-07 (59),
    mpeg4PointCode-09-08 (60),
    mpeg4PointCode-09-09 (61),
    mpeg4PointCode-09-10 (62),
    mpeg4PointCode-09-11 (63),
    mpeg4PointCode-09-12 (64),
    mpeg4PointCode-09-13 (65),
    mpeg4PointCode-09-14 (66),
    mpeg4PointCode-09-15 (67),
    mpeg4PointCode-10-01 (68),
    mpeg4PointCode-10-02 (69),
    mpeg4PointCode-10-03 (70),
    mpeg4PointCode-10-04 (71),
    mpeg4PointCode-10-05 (72),
    mpeg4PointCode-10-06 (73),
    mpeg4PointCode-10-07 (74),
    mpeg4PointCode-10-08 (75),
    mpeg4PointCode-10-09 (76),
    mpeg4PointCode-10-10 (77),
    mpeg4PointCode-11-01 (78),
    mpeg4PointCode-11-02 (79),
    mpeg4PointCode-11-03 (80),
    mpeg4PointCode-11-04 (81),
    mpeg4PointCode-11-05 (82),
    mpeg4PointCode-11-06 (83),
    mpeg4PointCode-12-01 (84),
    mpeg4PointCode-12-02 (85),
    mpeg4PointCode-12-03 (86),
    mpeg4PointCode-12-04 (87)
}
MPEG4FeaturePointExtensionBlock ::= SEQUENCE {
    fallback [0] MPEG4FeaturePointCode,
}
MPEG4FeaturePoint ::= CHOICE {
    code [0] MPEG4FeaturePointCode,
    extensionBlock [1] MPEG4FeaturePointExtensionBlock
}
AnthropometricLandmark ::= CHOICE {
    base [0] AnthropometricLandmarkBase,
    extensionBlock [1] AnthropometricLandmarkExtensionBlock
}
AnthropometricLandmarkBase ::= CHOICE {
    anthropometricLandmarkName [0] AnthropometricLandmarkName,
    anthropometricLandmarkPointName [1] AnthropometricLandmarkPointName,
    anthropometricLandmarkPointId [2] AnthropometricLandmarkPointId
}
AnthropometricLandmarkExtensionBlock ::= SEQUENCE {
}
AnthropometricLandmarkNameCode ::= ENUMERATED {
    vertex (0),
    glabella (1),
    opisthocranion (2),
    eurionLeft (3),
    eurionRight (4),
    frontotemporaleLeft (5),

    frontotemporaleRight (6),
    trichion (7),
    zygionLeft (8),
    zygionRight (9),
    gonionLeft (10),
    gonionRight (11),
    sublabiale (12),
    pogonion (13),
    menton (14),
    condylionLateraleLeft (15),
    condylionLateraleRight (16),
    endocanthionLeft (17),
    endocanthionRight (18),
    exocanthionLeft (19),
    exocanthionRight (20),
    centerPointOfPupilLeft (21),
    centerPointOfPupilRight (22),
    orbitaleLeft (23),
    orbitaleRight (24),
    palpebraleSuperiusLeft (25),
    palpebraleSuperiusRight (26),
    palpebraleInferiusLeft (27),
    palpebraleInferiusRight (28),
    orbitaleSuperiusRight (30),
    superciliareLeft (31),
    superciliareRight (32),}
    sellion (34),
    alareLeft (35),
    alareRight (36),
    pronasale (37),
    subnasale (38),}\begin{array}{l}{\mathrm{ (39),}}\\{\mathrm{ subalare }}
    alarCurvatureLeft (40),
    alarCurvatureRight (41),
    maxillofrontale (42),
    christaPhiltraLandmarkLeft (43),
    christaPhiltraLandmarkRight (44),
    labialeSuperius (45),
    labialeInferius (46),
    cheilionLeft (47),
    cheilionRight (48),
    stomion (49),
    superauraleLeft (50),
    superauraleRight (51),
    subauraleLeft (52),
    subauraleRight (53),
    preaurale (54),
    postaurale (55),
    otobasionSuperiusLeft (56),
    otobasionSuperiusRight (57),
    otobasionInferius (58),
    porion (59),
    tragion (60)
}
AnthropometricLandmarkNameExtensionBlock ::= SEQUENCE {
    fallback [0] AnthropometricLandmarkNameCode,
}
AnthropometricLandmarkName ::= CHOICE {
    code [0] AnthropometricLandmarkNameCode,
    extensionBlock [1] AnthropometricLandmarkNameExtensionBlock
}
AnthropometricLandmarkPointNameCode ::= ENUMERATED {
    pointCode-01-01 (0),
    pointCode-01-02 (1),
    pointCode-01-05 (2),

    pointCode-01-06 (3),
    pointCode-01-07 (4),
    pointCode-01-08 (5),
    pointCode-01-09 (6),
    pointCode-02-01 (7),
    pointCode-02-02 (8),
    pointCode-02-03 (9),
    pointCode-02-04 (10),
    pointCode-02-05 (11),
    pointCode-02-06 (12),
    pointCode-02-07 (13),
    pointCode-02-09 (14),
    pointCode-02-10 (15),
    pointCode-03-01 (16),
    pointCode-03-02 (17),
    pointCode-03-03 (18),
    pointCode-03-04 (19),
    pointCode-03-05 (20),
    pointCode-03-06 (21),
    pointCode-03-07 (22),
    pointCode-03-08 (23),
    pointCode-03-09 (24),
    pointCode-03-10 (25),
    pointCode-03-11 (26),
    pointCode-03-12 (27),
    pointCode-04-01 (28),
    pointCode-04-02 (29),
    pointCode-04-03 (30),
    pointCode-04-04 (31),
    pointCode-05-01 (32),
    pointCode-05-02 (33),
    pointCode-05-03 (34),
    pointCode-05-04 (35),
    pointCode-05-06 (36)
}
AnthropometricLandmarkPointNameExtensionBlock ::= SEQUENCE {
    fallback [0] AnthropometricLandmarkPointNameCode,
}
AnthropometricLandmarkPointName ::= CHOICE {
    code [0] AnthropometricLandmarkPointNameCode,
    extensionBlock [1] AnthropometricLandmarkPointNameExtensionBlock
}
AnthropometricLandmarkPointIdCode ::= ENUMERATED {
    v
    (0),
    (1),
    eu-left
    eu-right (4),
    ft-left (5),
    ft-right (6),
    tr (7),
    zy-left (8),
    zy-right (9),
    go-left (10),
    go-right (11),
    sl (12),
    pg (13),
    gn (14),
    cdl-left (15),
    cdl-right (16),
    en-left (17),
    en-right (18),
    ex-left (19),
    ex-right (20),
    p-left (21),
    p-right (22),
    or-left (23),

    or-right (24),
    ps-left (25),
    ps-right (26),
    pi-left (27),
    pi-right (28),
    os-left (29),
    os-right (30),
    sci-left (31),
    sci-right (32),
    n (33),
    se (34),
    al-left (35),
    al-right (36),
    prn (37),
    sn (38),
    sbal (39),
    ac-left (40),
    ac-right (41),
    mf-left (42),
    mf-right (43),
    cph-left (44),
    cph-right (45),
    ls (46),
    li ch-left (48),
    ch-right (49),
    sto (50),
    sa-left (51),
    sa-right (52),
    sba-left (53),
    sba-right (54),
    pra-left (55),
    pra-right (56),
    pa (57),
    obs-left (58),
    obs-right (59),
    obi (60),
    po (61),
    t (62)
}
AnthropometricLandmarkPointIdExtensionBlock ::= SEQUENCE {
    fallback [0] AnthropometricLandmarkPointIdCode,
}
AnthropometricLandmarkPointId ::= CHOICE {
    code [0] AnthropometricLandmarkPointIdCode,
    extensionBlock [1] AnthropometricLandmarkPointIdExtensionBlock
}
LandmarkCoordinates ::= CHOICE {
    base [0] LandmarkCoordinatesBase,
    extensionBlock [1] LandmarkCoordinatesExtensionBlock
}
LandmarkCoordinatesBase ::= CHOICE {
    coordinateCartesian2DBlock [0] CoordinateCartesian2DUnsignedShortBlock,
    coordinateTextureImageBlock [1] CoordinateTextureImageBlock,
    coordinateCartesian3DBlock [2] CoordinateCartesian3DUnsignedShortBlock
}
LandmarkCoordinatesExtensionBlock ::= SEQUENCE {
}
CoordinateTextureImageBlock ::= SEQUENCE {
    uInPixel [0] INTEGER (0..MAX),
    vInPixel [1] INTEGER (0..MAX)
}

ImageRepresentation ::= CHOICE {
    base [0] ImageRepresentationBase,
    extensionBlock [1] ImageRepresentationExtensionBlock
}
ImageRepresentationBase ::= CHOICE {
    imageRepresentation2DBlock [0] ImageRepresentation2DBlock,
    shapeRepresentation3DBlock [1] ShapeRepresentation3DBlock
}
ImageRepresentationExtensionBlock ::= SEQUENCE
}
ImageRepresentation2DBlock ::= SEQUENCE {
    representationData2D [0] OCTET STRING,
    imageInformation2DBlock [1] ImageInformation2DBlock,
    captureDevice2DBlock [2] CaptureDevice2DBlock OPTIONAL,
}
CaptureDevice2DBlock ::= SEQUENCE {
    captureDeviceSpectral2DBlock [0] CaptureDeviceSpectral2DBlock OPTIONAL,
    captureDeviceTechnologyId2D [1] CaptureDeviceTechnologyId2D OPTIONAL,
}
CaptureDeviceSpectral2DBlock ::= SEQUENCE {
    whiteLight [0] BOOLEAN OPTIONAL,
    nearInfrared [1] BOOLEAN OPTIONAL,
    thermal [2] BOOLEAN OPTIONAL,
}
CaptureDeviceTechnologyId2DCode ::= ENUMERATED {
    unknown (0),
    staticPhotographFromUnknownSource (1),
    staticPhotographFromDigitalStillImageCamera (2),
    staticPhotographFromScanner (3),
    videoFrameFromUnknownSource (4),
    videoFrameFromAnalogueVideoCamera (5),
    videoFrameFromDigitalVideoCamera (6)
}
CaptureDeviceTechnologyId2DExtensionBlock ::= SEQUENCE {
    fallback [0] CaptureDeviceTechnologyId2DCode,
}
CaptureDeviceTechnologyId2D ::= CHOICE {
    code [0] CaptureDeviceTechnologyId2DCode,
    extensionBlock [1] CaptureDeviceTechnologyId2DExtensionBlock
}
ImageInformation2DBlock ::= SEQUENCE {
    imageDataFormat [0] ImageDataFormat,
    faceImageKind2D [1] FaceImageKind2D OPTIONAL,
    postAcquisitionProcessingBlock [2] PostAcquisitionProcessingBlock OPTIONAL,
    lossyTransformationAttempts [3] LossyTransformationAttempts OPTIONAL,
    cameraToSubjectDistance [4] CameraToSubjectDistance OPTIONAL,
    sensorDiagonal [5] SensorDiagonal OPTIONAL,
    lensFocalLength [6] LensFocalLength OPTIONAL,
    imageSizeBlock [7] ImageSizeBlock OPTIONAL,
    imageFaceMeasurementsBlock [8] ImageFaceMeasurementsBlock OPTIONAL,
    imageColourSpace [9] ImageColourSpace OPTIONAL,
    referenceColourMappingBlock [10] ReferenceColourMappingBlock OPTIONAL,
}
FaceImageKind2DCode ::= ENUMERATED {
    mrtd (0),

    generalPurpose (1)
}
FaceImageKind2DExtensionBlock ::= SEQUENCE {
    fallback [0] FaceImageKind2DCode,
}
FaceImageKind2D ::= CHOICE {
    code [0] FaceImageKind2DCode,
    extensionBlock [1] FaceImageKind2DExtensionBlock
}
PostAcquisitionProcessingBlock ::= SEQUENCE {
    rotated [0] BOOLEAN OPTIONAL,
    cropped [1] BOOLEAN OPTIONAL,
    downSampled [2] BOOLEAN OPTIONAL,
    whiteBalanceAdjusted [3] BOOLEAN OPTIONAL,
    multiplyCompressed [4] BOOLEAN OPTIONAL,
    interpolated [5] BOOLEAN OPTIONAL,
    contrastStretched [6] BOOLEAN OPTIONAL,
    poseCorrected [7] BOOLEAN OPTIONAL,
    multiViewImage [8] BOOLEAN OPTIONAL,
    ageProgressed [9] BOOLEAN OPTIONAL,
    superResolutionProcessed [10] BOOLEAN OPTIONAL,
    normalised [11] BOOLEAN OPTIONAL,
}
LossyTransformationAttemptsCode ::= ENUMERATED {
    unknown (0),
    zero (1),
    one (2),
    moreThanOne (3)
}
LossyTransformationAttemptsExtensionBlock ::= SEQUENCE {
    fallback [0] LossyTransformationAttemptsCode,
}
LossyTransformationAttempts ::= CHOICE {
    code [0] LossyTransformationAttemptsCode,
    extensionBlock [1] LossyTransformationAttemptsExtensionBlock
}
ImageDataFormatCode ::= ENUMERATED {
    unknown (0),
    other (1),
    jpeg (2),
    jpeg2000Lossy (3),
    jpeg2000Lossless (4),
    png (5),
    pgm (6),
    ppm (7)
}
ImageDataFormatExtensionBlock ::= SEQUENCE {
}
ImageDataFormat ::= CHOICE {
    code [0] ImageDataFormatCode,
    extensionBlock [1] ImageDataFormatExtensionBlock
}
CameraToSubjectDistance ::= INTEGER (0..50000)
SensorDiagonal ::= INTEGER (0..2000)
LensFocalLength ::= INTEGER (0..2000)

    ImageSizeBlock ::= SEQUENCE {
        width [0] ImageSize,
        height [1] ImageSize
    }
    ImageSize ::= INTEGER (0..65535)
    ImageFaceMeasurementsBlock ::= SEQUENCE {
        imageHeadWidth [0] INTEGER (0..MAX) OPTIONAL,
        imageInterEyeDistance [1] INTEGER (0..MAX) OPTIONAL,
        imageEyeToMouthDistance [2] INTEGER (0..MAX) OPTIONAL,
        imageHeadLength [3] INTEGER (0..MAX) OPTIONAL,
    }
    ImageColourSpaceCode ::= ENUMERATED {
        unknown (0),
        other (1),
        rgb24Bit (2),
        rgb48Bit (3),
        yuv422 (4),
        greyscale8Bit (5),
        greyscale16Bit (6)
    }
    ImageColourSpaceExtensionBlock ::= SEQUENCE {
        fallback [0] ImageColourSpaceCode,
    }
    ImageColourSpace ::= CHOICE {
        code [0] ImageColourSpaceCode,
        extensionBlock [1] ImageColourSpaceExtensionBlock
    }
    ReferenceColourMappingBlock ::= SEQUENCE {
        referenceColourSchema [0] OCTET STRING OPTIONAL,
        referenceColourDefinitionAndValueBlocks [1] ReferenceColourDefinitionAndValueBlocks
OPTIONAL,
    }
    ReferenceColourDefinitionAndValueBlocks ::= SEQUENCE OF ReferenceColourDefinitionAndVal
ueBlock
    ReferenceColourDefinitionAndValueBlock ::= SEQUENCE {
        referenceColourDefinition [0] OCTET STRING OPTIONAL,
        referenceColourValue [1] OCTET STRING OPTIONAL,
    }
    ShapeRepresentation3DBlock ::= SEQUENCE {
        representationData3D [0] OCTET STRING,
        imageInformation3DBlock [1] ImageInformation3DBlock,
        captureDevice3DBlock [2] CaptureDevice3DBlock OPTIONAL,
    }
    CaptureDevice3DBlock ::= SEQUENCE {
        modus3D [0] Modus3D OPTIONAL,
        captureDeviceTechnologyId3D [1] CaptureDeviceTechnologyId3D OPTIONAL,
    }
    Modus3DCode ::= ENUMERATED {
        unknown (0),
        active (1),
        passive (2)
    }

Modus3DExtensionBlock ::= SEQUENCE {
    fallback [0] Modus3DCode,
}
Modus3D ::= CHOICE {
    code [0] Modus3DCode,
    extensionBlock [1] Modus3DExtensionBlock
}
CaptureDeviceTechnologyId3DCode ::= ENUMERATED {
    unknown (0),
    stereoscopicScanner (1),
    movingLaserLine (2),
    structuredLight (3),
    colourCodedLight (4),
    timeOfFlight (5),
    shapeFromShading (6)
}
CaptureDeviceTechnologyId3DExtensionBlock ::= SEQUENCE {
    fallback [0] CaptureDeviceTechnologyId3DCode,
}
CaptureDeviceTechnologyId3D ::= CHOICE {
    code [0] CaptureDeviceTechnologyId3DCode,
    extensionBlock [1] CaptureDeviceTechnologyId3DExtensionBlock
}
ImageInformation3DBlock ::= SEQUENCE {
    representationKind3D [0] RepresentationKind3D,
    coordinateSystem3D [1] CoordinateSystem3D,
    cartesianScalesAndOffsets3DBlock [2] CartesianScalesAndOffsets3DBlock,
    imageColourSpace [3] ImageColourSpace OPTIONAL,
    faceImageKind3D [4] FaceImageKind3D OPTIONAL,
    imageSizeBlock [5] ImageSizeBlock OPTIONAL,
    physicalFaceMeasurements3DBlock [6] PhysicalFaceMeasurements3DBlock OPTIONAL,
    postAcquisitionProcessingBlock [7] PostAcquisitionProcessingBlock OPTIONAL,
    texturedImageResolution3DBlock [8] TexturedImageResolution3DBlock OPTIONAL,
    textureMap3DBlock [9] TextureMap3DBlock OPTIONAL,
}
RepresentationKind3D ::= CHOICE {
    base [0] RepresentationKind3DBase,
    extensionBlock [1] RepresentationKind3DExtensionBlock
}
RepresentationKind3DBase ::= CHOICE {
    vertex3DBlock [0] Vertex3DBlock
}
RepresentationKind3DExtensionBlock ::= SEQUENCE {
}
Vertex3DBlock ::= SEQUENCE {
    vertexInformation3DBlocks [0] VertexInformation3DBlocks OPTIONAL,
    vertexTriangleData3DBlocks [1] VertexTriangleData3DBlocks OPTIONAL,
}
VertexInformation3DBlocks ::= SEQUENCE OF VertexInformation3DBlock
VertexInformation3DBlock ::= SEQUENCE {
    vertexCoordinates3DBlock [0] CoordinateCartesian3DUnsignedShortBlock,
    vertexId3D [1] INTEGER (0..MAX) OPTIONAL,
    vertexNormals3DBlock [2] CoordinateCartesian3DUnsignedShortBlock OPTIONAL,
    vertexTextures3DBlock [3] CoordinateCartesian2DUnsignedShortBlock OPTIONAL,
    errorMap3D [4] OCTET STRING OPTIONAL,

}
VertexTriangleData3DBlocks ::= SEQUENCE OF VertexTriangleData3DBlock
VertexTriangleData3DBlock ::= SEQUENCE {
    triangleIndex1 [0] INTEGER (0..MAX),
    triangleIndex2 [1] INTEGER (0..MAX),
    triangleIndex3 [2] INTEGER (0..MAX)
}
CoordinateSystem3DCode ::= ENUMERATED {
    cartesianCoordinateSystem3D (0)
}
CoordinateSystem3DExtensionBlock ::= SEQUENCE {
    fallback [0] CoordinateSystem3DCode,
}
CoordinateSystem3D ::= CHOICE {
    code [0] CoordinateSystem3DCode,
    extensionBlock [1] CoordinateSystem3DExtensionBlock
}
CartesianScalesAndOffsets3DBlock ::= SEQUENCE {
    scaleX [0] REAL,
    scaleY [1] REAL,
    scaleZ [2] REAL,
    offsetX [3] REAL,
    offsetY [4] REAL,
    offsetZ [5] REAL
}
FaceImageKind3DCode ::= ENUMERATED {
    texturedFaceImage3d (0)
}
FaceImageKind3DExtensionBlock ::= SEQUENCE {
    fallback [0] FaceImageKind3DCode,
}
FaceImageKind3D ::= CHOICE {
    code [0] FaceImageKind3DCode,
    extensionBlock [1] FaceImageKind3DExtensionBlock
}
PhysicalFaceMeasurements3DBlock ::= SEQUENCE {
    physicalHeadWidth3D [0] INTEGER OPTIONAL,
    physicalInterEyeDistance3D [1] INTEGER OPTIONAL,
    physicalEyeToMouthDistance3D [2] INTEGER OPTIONAL,
    physicalHeadLength3D [3] INTEGER OPTIONAL,
}
TexturedImageResolution3DBlock ::= SEQUENCE {
    mMShapeXResolution3D [0] REAL OPTIONAL,
    mMShapeYResolution3D [1] REAL OPTIONAL,
    mMShapeZResolution3D [2] REAL OPTIONAL,
    mMTextureResolution3D [3] REAL OPTIONAL,
    textureAcquisitionPeriod3D [4] REAL OPTIONAL,
    faceAreaScanned3DBlock [5] FaceAreaScanned3DBlock OPTIONAL,
}
FaceAreaScanned3DBlock ::= SEQUENCE {
    frontOfTheHead [0] BOOLEAN OPTIONAL,
    chin [1] BOOLEAN OPTIONAL,
    ears [2] BOOLEAN OPTIONAL,
    neck [3] BOOLEAN OPTIONAL,

    backOfTheHead [4] BOOLEAN OPTIONAL,
    fullHead [5] BOOLEAN OPTIONAL,
}
TextureMap3DBlock ::= SEQUENCE {
    textureMapData3D [0] OCTET STRING,
    imageDataFormat [1] ImageDataFormat,
    textureCaptureDeviceSpectral3D [2] TextureCaptureDeviceSpectral3D OPTIONAL,
    textureStandardIlluminant3D [3] TextureStandardIlluminant3D OPTIONAL,
    errorMap3D [4] OCTET STRING OPTIONAL,
}
TextureCaptureDeviceSpectral3DCode ::= ENUMERATED {
    unknown (0),
    other (1),
    white (2),
    veryNearInfrared (3),
    shortWaveInfrared (4)
}
TextureCaptureDeviceSpectral3DExtensionBlock ::= SEQUENCE {
    fallback [0] TextureCaptureDeviceSpectral3DCode,
}
TextureCaptureDeviceSpectral3D ::= CHOICE {
    code [0] TextureCaptureDeviceSpectral3DCode,
    extensionBlock [1] TextureCaptureDeviceSpectral3DExtensionBlock
}
TextureStandardIlluminant3DCode ::= ENUMERATED {
    d30 (0),
    d35 (1),
    d40 (2),
    d45 (3),
    d50 (4),
    d55 (5),
    d60 (6),
    d65 (7),
    d70 (8),
    d75 (9),
    d80 (10)
}
TextureStandardIlluminant3DExtensionBlock ::= SEQUENCE {
    fallback [0] TextureStandardIlluminant3DCode,
}
TextureStandardIlluminant3D ::= CHOICE {
    code [0] TextureStandardIlluminant3DCode,
    extensionBlock [1] TextureStandardIlluminant3DExtensionBlock
}

END 

The XSD module below can be retrieved from http://standards.iso.org/iso-iec/39794/-5/ed-1/en 

<?xml version="1.0" encoding="utf-8"?>
<!--Use of ISO/IEC copyright in this Schema is licensed for the purpose of developing,
implementing, and using software based on this Schema, subject to the following
conditions:
* Software developed from this Schema must retain the Copyright Notice, this list of
conditions and the disclaimer below ("Disclaimer").

The Disclaimer is: 
THE SCHEMA ON WHICH THIS SOFTWARE IS BASED IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THE CODE COMPONENTS, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.–> 
<xs:schema 
xmlns:xs=“http://www.w3.org/2001/XMLSchema” 
xmlns:vc=“http://www.w3.org/2007/XMLSchema-versioning” 
xmlns:cmn=“http://standards.iso.org/iso-iec/39794/-1” 
xmlns=“http://standards.iso.org/iso-iec/39794/-5” 
vc:minVersion=“1.0” 
targetNamespace=“http://standards.iso.org/iso-iec/39794/-5” 
elementFormDefault=“qualified” 
attributeFormDefault=“unqualified”> 
<xs:import namespace=“http://standards.iso.org/iso-iec/39794/-1” schemaLocation=“iso-iec-39794-1-ed-1-v1.xsd” /> 
<xs:element name=“faceImageData” type=“FaceImageDataBlockType”> 
xs:annotation 
xs:documentationroot element</xs:documentation> 
</xs:annotation> 
</xs:element> 
<xs:complexType name=“FaceImageDataBlockType”> 
xs:sequence 
<xs:element name=“versionBlock” type=“cmn:VersionBlockType” /> 
<xs:element name=“representationBlocks” type=“RepresentationBlocksType” /> 
<xs:any namespace="##other" processContents=“lax” minOccurs=“0” /> 
</xs:sequence> 
</xs:complexType> 
<xs:complexType name=“RepresentationBlocksType”> 
xs:sequence 
<xs:element name=“representationBlock” type=“RepresentationBlockType” 
maxOccurs=“unbounded” /> 
</xs:sequence> 
</xs:complexType> 
<xs:complexType name=“RepresentationBlockType”> 
xs:sequence 
<xs:element name=“representationId” type=“xs:unsignedInt” /> 
<xs:element name=“imageRepresentation” type=“ImageRepresentationType” /> 
<xs:element name=“captureDateTimeBlock” type=“cmn:CaptureDateTimeBlockType” 
minOccurs=“0” /> 
<xs:element name=“qualityBlocks” type=“cmn:QualityBlocksType” minOccurs=“0” /> 
<xs:element name=“padDataBlock” type=“cmn:PADDataBlockType” minOccurs=“0” /> 
<xs:element name=“sessionId” type=“xs:unsignedInt” minOccurs=“0” /> 
<xs:element name=“derivedFrom” type=“xs:unsignedInt” minOccurs=“0” /> 
<xs:element name=“captureDeviceBlock” type=“CaptureDeviceBlockType” minOccurs=“0” /> <xs:element name=“identityMetadataBlock” type=“IdentityMetadataBlockType” 
minOccurs=“0” /> 
<xs:element name=“landmarkBlocks” type=“LandmarkBlocksType” minOccurs=“0” /> 

            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceBlockType">
        <xs:sequence>
                <xs:element name="modelIdBlock" type="cmn:RegistryIdBlockType" minOccurs="0" />
                <xs:element name="certificationIdBlocks" type="cmn:CertificationIdBlocksType"
minOccurs="0" />
                <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="IdentityMetadataBlockType">
        <xs:sequence>
            <xs:element name="gender" type="GenderType" minOccurs="0" />
            <xs:element name="eyeColour" type="EyeColourType" minOccurs="0" />
            <xs:element name="hairColour" type="HairColourType" minOccurs="0" />
            <xs:element name="subjectHeight" type="SubjectHeightType" minOccurs="0" />
            <xs:element name="propertiesBlock" type="PropertiesBlockType" minOccurs="0" />
            <xs:element name="expressionBlock" type="ExpressionBlockType" minOccurs="0" />
            <xs:element name="poseAngleBlock" type="PoseAngleBlockType" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="GenderCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="other" type="xs:int" fixed="1" />
            <xs:element name="male" type="xs:int" fixed="2" />
            <xs:element name="female" type="xs:int" fixed="3" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="GenderExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="GenderCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="GenderType">
        <xs:choice>
            <xs:element name="code" type="GenderCodeType" />
            <xs:element name="extensionBlock" type="GenderExtensionBlockType" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="EyeColourCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="other" type="xs:int" fixed="1" />
            <xs:element name="black" type="xs:int" fixed="2" />
            <xs:element name="blue" type="xs:int" fixed="3" />
            <xs:element name="brown" type="xs:int" fixed="4" />
            <xs:element name="grey" type="xs:int" fixed="5" />
            <xs:element name="green" type="xs:int" fixed="6" />
            <xs:element name="hazel" type="xs:int" fixed="7" />
            <xs:element name="multi-coloured" type="xs:int" fixed="8" />
            <xs:element name="pink" type="xs:int" fixed="9" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="EyeColourExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="EyeColourCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>

<xs:complexType name="EyeColourType">
    <xs:choice>
        <xs:element name="code" type="EyeColourCodeType" />
        <xs:element name="extensionBlock" type="EyeColourExtensionBlockType" />
    </xs:choice>
</xs:complexType>
<xs:complexType name="HairColourCodeType">
    <xs:choice>
        <xs:element name="unknown" type="xs:int" fixed="0" />
        <xs:element name="other" type="xs:int" fixed="1" />
        <xs:element name="bald" type="xs:int" fixed="2" />
        <xs:element name="black" type="xs:int" fixed="3" />
        <xs:element name="blonde" type="xs:int" fixed="4" />
        <xs:element name="brown" type="xs:int" fixed="5" />
        <xs:element name="grey" type="xs:int" fixed="6" />
        <xs:element name="white" type="xs:int" fixed="7" />
        <xs:element name="red" type="xs:int" fixed="8" />
        <xs:element name="knownColoured" type="xs:int" fixed="9" />
    </xs:choice>
</xs:complexType>
<xs:complexType name="HairColourExtensionBlockType">
    <xs:sequence>
        <xs:element name="fallback" type="HairColourCodeType" />
        <xs:any namespace="##other" processContents="lax" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="HairColourType">
    <xs:choice>
        <xs:element name="code" type="HairColourCodeType" />
        <xs:element name ="extensionBlock" type="HairColourExtensionBlockType" />
    </xs:choice>
</xs:complexType>
<xs:simpleType name="SubjectHeightType">
    <xs:restriction base="xs:unsignedInt">
        <xs:minInclusive value="1" />
        <xs:maxInclusive value="65535" />
    </xs:restriction>
</xs:simpleType>
<xs:complexType name="PropertiesBlockType">
    <xs:sequence>
        <xs:element name="glasses" type="xs:boolean" minOccurs="0" />
        <xs:element name="moustache" type="xs:boolean" minOccurs="0" />
        <xs:element name="beard" type="xs:boolean" minOccurs="0" />
        <xs:element name="teethVisible" type="xs:boolean" minOccurs="0" />
        <xs:element name="pupilOrIrisNotVisible" type="xs:boolean" minOccurs="0" />
        <xs:element name="mouthOpen" type="xs:boolean" minOccurs="0" />
        <xs:element name="leftEyePatch" type="xs:boolean" minOccurs="0" />
        <xs:element name="rightEyePatch" type="xs:boolean" minOccurs="0" />
        <xs:element name="darkGlasses" type="xs:boolean" minOccurs="0" />
        <xs:element name="biometricAbsent" type="xs:boolean" minOccurs="0" />
        <xs:element name="headCoveringsPresent" type="xs:boolean" minOccurs="0" />
        <xs:any namespace="##other" processContents="lax" minOccurs="0" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="ExpressionBlockType">
    <xs:sequence>
        <xs:element name="neutral" type="xs:boolean" minOccurs="0" />
        <xs:element name="smile" type="xs:boolean" minOccurs="0" />
        <xs:element name="raisedEyebrows" type="xs:boolean" minOccurs="0" />
        <xs:element name="eyesLookingAwayFromTheCamera" type="xs:boolean" minOccurs="0" />
        <xs:element name="squinting" type="xs:boolean" minOccurs="0" />
        <xs:element name="frowning" type="xs:boolean" minOccurs="0" />
        <xs:any namespace="##other" processContents="lax" minOccurs="0" />
    </xs:sequence>
</xs:complexType>

<xs:complexType name="PoseAngleBlockType">
    <xs:sequence>
        <xs:element name="yawAngleBlock" type="AngleDataBlockType" minOccurs="0" />
        <xs:element name="pitchAngleBlock" type="AngleDataBlockType" minOccurs="0" />
        <xs:element name="rollAngleBlock" type="AngleDataBlockType" minOccurs="0" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="AngleDataBlockType">
    <xs:sequence>
        <xs:element name="angleValue" type="AngleValueType" />
        <xs:element name="angleUncertainty" type="AngleUncertaintyType" minOccurs="0" />
        <xs:any namespace="##other" processContents="lax" minOccurs="0" />
    </xs:sequence>
</xs:complexType>
<xs:simpleType name="AngleValueType">
    <xs:restriction base="xs:integer">
        <xs:minInclusive value="-180" />
        <xs:maxInclusive value="180" />
    </xs:restriction>
</xs:simpleType>
<xs:simpleType name="AngleUncertaintyType">
    <xs:restriction base="xs:integer">
        <xs:minInclusive value="0" />
        <xs:maxInclusive value="180" />
    </xs:restriction>
</xs:simpleType>
<xs:complexType name="LandmarkBlocksType">
    <xs:sequence>
        <xs:element name="landmarkBlock" type="LandmarkBlockType" maxOccurs="unbounded" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="LandmarkBlockType">
    <xs:sequence>
        <xs:element name="landmarkKind" type="LandmarkKindType" />
        <xs:element name="landmarkCoordinates" type="LandmarkCoordinatesType" minOccurs="0"
/>
        <xs:any namespace="##other" processContents="lax" minOccurs="0" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="LandmarkKindBaseType">
    <xs:choice>
        <xs:element name="mpeg4FeaturePoint" type="MPEG4FeaturePointType" />
        <xs:element name="anthropometricLandmark" type="AnthropometricLandmarkType" />
    </xs:choice>
</xs:complexType>
<xs:complexType name="LandmarkKindExtensionBlockType">
    <xs:sequence>
        <xs:any namespace="##other" processContents="lax"/>
    </xs:sequence>
</xs:complexType>
<xs:complexType name="LandmarkKindType">
    <xs:choice>
        <xs:element name="base" type="LandmarkKindBaseType"/>
        <xs:element name="extensionBlock" type="LandmarkKindExtensionBlockType"/>
    </xs:choice>
</xs:complexType>
<xs:complexType name="MPEG4FeaturePointCodeType">
    <xs:choice>
        <xs:element name="mpeg4PointCode-02-01" type="xs:int" fixed="0" />
        <xs:element name="mpeg4PointCode-02-02" type="xs:int" fixed="1" />
        <xs:element name="mpeg4PointCode-02-03" type="xs:int" fixed="2" />

            <xs:element name="mpeg4PointCode-10-07" type="xs:int" fixed="74" />
            <xs:element name="mpeg4PointCode-10-08" type="xs:int" fixed="75" />
            <xs:element name="mpeg4PointCode-10-09" type="xs:int" fixed="76" />
            <xs:element name="mpeg4PointCode-10-10" type="xs:int" fixed="77" />
            <xs:element name="mpeg4PointCode-11-01" type="xs:int" fixed="78" />
            <xs:element name="mpeg4PointCode-11-02" type="xs:int" fixed="79" />
            <xs:element name="mpeg4PointCode-11-03" type="xs:int" fixed="80" />
            <xs:element name="mpeg4PointCode-11-04" type="xs:int" fixed="81" />
            <xs:element name="mpeg4PointCode-11-05" type="xs:int" fixed="82" />
            <xs:element name="mpeg4PointCode-11-06" type="xs:int" fixed="83" />
            <xs:element name="mpeg4PointCode-12-01" type="xs:int" fixed="84" />
            <xs:element name="mpeg4PointCode-12-02" type="xs:int" fixed="85" />
            <xs:element name="mpeg4PointCode-12-03" type="xs:int" fixed="86" />
                <xs:element name="mpeg4PointCode-12-04" type="xs:int" fixed="87" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="MPEG4FeaturePointExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="MPEG4FeaturePointCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="MPEG4FeaturePointType">
        <xs:choice>
                <xs:element name="code" type="MPEG4FeaturePointCodeType" />
                <xs:element name="extensionBlock" type="MPEG4FeaturePointExtensionBlockType" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkBaseType">
        <xs:choice>
            <xs:element name="anthropometricLandmarkName" type="AnthropometricLandmarkNameType"
/>
                <xs:element name="anthropometricLandmarkPointName" type="AnthropometricLandmarkPoint
NameType" />
                <xs:element name="anthropometricLandmarkPointId" type="AnthropometricLandmarkPointId
Type" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkExtensionBlockType">
        <xs:sequence>
                <xs:any namespace="##other" processContents="lax"/>
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkType">
        <xs:choice>
                <xs:element name="base" type="AnthropometricLandmarkBaseType"/>
                <xs:element name="extensionBlock" type="AnthropometricLandmarkExtensionBlockType"/>
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkNameCodeType">
        <xs:choice>
            <xs:element name="vertex" type="xs:int" fixed="0" />
            <xs:element name="glabella" type="xs:int" fixed="1" />
            <xs:element name="opisthocranion" type="xs:int" fixed="2" />
            <xs:element name="eurionLeft" type="xs:int" fixed="3" />
            <xs:element name="eurionRight" type="xs:int" fixed="4" />
            <xs:element name="frontotemporaleLeft" type="xs:int" fixed="5" />
            <xs:element name="frontotemporaleRight" type="xs:int" fixed="6" />
            <xs:element name="trichion" type="xs:int" fixed="7" />
            <xs:element name="zygionLeft" type="xs:int" fixed="8" />
            <xs:element name="zygionRight" type="xs:int" fixed="9" />
            <xs:element name="gonionLeft" type="xs:int" fixed="10" />
            <xs:element name="gonionRight" type="xs:int" fixed="11" />
            <xs:element name="sublabiale" type="xs:int" fixed="12" />
            <xs:element name="pogonion" type="xs:int" fixed="13" />

        <xs:element name="menton" type="xs:int" fixed="14" />
        <xs:element name="condylionLateraleLeft" type="xs:int" fixed="15" />
        <xs:element name="condylionLateraleRight" type="xs:int" fixed="16" />
        <xs:element name="endocanthionLeft" type="xs:int" fixed="17" />
        <xs:element name="endocanthionRight" type="xs:int" fixed="18" />
        <xs:element name="exocanthionLeft" type="xs:int" fixed="19" />
        <xs:element name="exocanthionRight" type="xs:int" fixed="20" />
        <xs:element name="centerPointOfPupilLeft" type="xs:int" fixed="21" />
        <xs:element name="centerPointOfPupilRight" type="xs:int" fixed="22" />
        <xs:element name="orbitaleLeft" type="xs:int" fixed="23" />
        <xs:element name="orbitaleRight" type="xs:int" fixed="24" />
        <xs:element name="palpebraleSuperiusLeft" type="xs:int" fixed="25" />
        <xs:element name="palpebraleSuperiusRight" type="xs:int" fixed="26" />
        <xs:element name="palpebraleInferiusLeft" type="xs:int" fixed="27" />
        <xs:element name="palpebraleInferiusRight" type="xs:int" fixed="28" />
        <xs:element name="orbitaleSuperiusLeft" type="xs:int" fixed="29" />
        <xs:element name="orbitaleSuperiusRight" type="xs:int" fixed="30" />
        <xs:element name="superciliareLeft" type="xs:int" fixed="31" />
        <xs:element name="superciliareRight" type="xs:int" fixed="32" />
        <xs:element name="nasion" type="xs:int" fixed="33" />
        <xs:element name="sellion" type="xs:int" fixed="34" />
        <xs:element name="alareLeft" type="xs:int" fixed="35" />
        <xs:element name="alareRight" type="xs:int" fixed="36" />
        <xs:element name="pronasale" type="xs:int" fixed="37" />
        <xs:element name="subnasale" type="xs:int" fixed="38" />
        <xs:element name="subalare" type="xs:int" fixed="39" />
        <xs:element name="alarCurvatureLeft" type="xs:int" fixed="40" />
        <xs:element name="alarCurvatureRight" type="xs:int" fixed="41" />
        <xs:element name="maxillofrontale" type="xs:int" fixed="42" />
        <xs:element name="christaPhiltraLandmarkLeft" type="xs:int" fixed="43" />
        <xs:element name="christaPhiltraLandmarkRight" type="xs:int" fixed="44" />
        <xs:element name="labialeSuperius" type="xs:int" fixed="45" />
        <xs:element name="labialeInferius" type="xs:int" fixed="46" />
        <xs:element name="cheilionLeft" type="xs:int" fixed="47" />
        <xs:element name="cheilionRight" type="xs:int" fixed="48" />
        <xs:element name="stomion" type="xs:int" fixed="49" />
        <xs:element name="superauraleLeft" type="xs:int" fixed="50" />
        <xs:element name="superauraleRight" type="xs:int" fixed="51" />
        <xs:element name="subauraleLeft" type="xs:int" fixed="52" />
        <xs:element name="subauraleRight" type="xs:int" fixed="53" />
        <xs:element name="preaurale" type="xs:int" fixed="54" />
        <xs:element name="postaurale" type="xs:int" fixed="55" />
        <xs:element name="otobasionSuperiusLeft" type="xs:int" fixed="56" />
        <xs:element name="otobasionSuperiusRight" type="xs:int" fixed="57" />
        <xs:element name="otobasionInferius" type="xs:int" fixed="58" />
        <xs:element name="porion" type="xs:int" fixed="59" />
        <xs:element name="tragion" type="xs:int" fixed="60" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkNameExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="AnthropometricLandmarkNameCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkNameType">
        <xs:choice>
            <xs:element name="code" type="AnthropometricLandmarkNameCodeType" />
            <xs:element name="extensionBlock" type="AnthropometricLandmarkNameExtensionBlockT
ype" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkPointNameCodeType">
        <xs:choice>
            <xs:element name="pointCode-01-01" type="xs:int" fixed="0" />
            <xs:element name="pointCode-01-02" type="xs:int" fixed="1" />
            <xs:element name="pointCode-01-05" type="xs:int" fixed="2" />
            <xs:element name="pointCode-01-06" type="xs:int" fixed="3" />

        <xs:element name="pointCode-01-07" type="xs:int" fixed="4" />
            type="xs:int" fixed="5" />
        <xs:element name="pointCode-01-09" type="xs:int" fixed="6" />
        <xs:element name="pointCode-02-01" type="xs:int" fixed="7" />
        <xs:element name="pointCode-02-02" type="xs:int" fixed="8" />
        <xs:element name="pointCode-02-03" type="xs:int" fixed="9" />
        <xs:element name="pointCode-02-04" type="xs:int" fixed="10" />
        <xs:element name="pointCode-02-05" type="xs:int" fixed="11" />
        <xs:element name="pointCode-02-06" type="xs:int" fixed="12" />
        <xs:element name="pointCode-02-07" type="xs:int" fixed="13" />
        <xs:element name="pointCode-02-09" type="xs:int" fixed="14" />
        <xs:element name="pointCode-02-10" type="xs:int" fixed="15" />
        <xs:element name="pointCode-03-01" type="xs:int" fixed="16" />
        <xs:element name="pointCode-03-02" type="xs:int" fixed="17" />
        <xs:element name="pointCode-03-03" type="xs:int" fixed="18" />
        <xs:element name="pointCode-03-04" type="xs:int" fixed="19" />
        <xs:element name="pointCode-03-05" type="xs:int" fixed="20" />
        <xs:element name="pointCode-03-06" type="xs:int" fixed="21" />
        <xs:element name="pointCode-03-07" type="xs:int" fixed="22" />
        <xs:element name="pointCode-03-08" type="xs:int" fixed="23" />
        <xs:element name="pointCode-03-09" type="xs:int" fixed="24" />
        <xs:element name="pointCode-03-10" type="xs:int" fixed="25" />
        <xs:element name="pointCode-03-11" type="xs:int" fixed="26" />
        <xs:element name="pointCode-03-12" type="xs:int" fixed="27" />
        <xs:element name="pointCode-04-01" type="xs:int" fixed="28" />
        <xs:element name="pointCode-04-02" type="xs:int" fixed="29" />
        <xs:element name="pointCode-04-03" type="xs:int" fixed="30" />
        <xs:element name="pointCode-04-04" type="xs:int" fixed="31" />
        <xs:element name="pointCode-05-01" type="xs:int" fixed="32" />
        <xs:element name="pointCode-05-02" type="xs:int" fixed="33" />
        <xs:element name="pointCode-05-03" type="xs:int" fixed="34" />
        <xs:element name="pointCode-05-04" type="xs:int" fixed="35" />
        <xs:element name="pointCode-05-06" type="xs:int" fixed="36" />
        </xs:choice>
</xs:complexType>
<xs:complexType name="AnthropometricLandmarkPointNameExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="AnthropometricLandmarkPointNameCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
</xs:complexType>
<xs:complexType name="AnthropometricLandmarkPointNameType">
        <xs:choice>
            <xs:element name="code" type="AnthropometricLandmarkPointNameCodeType" />
            <xs:element name="extensionBlock" type="AnthropometricLandmarkPointNameExtensionBloc
kType" />
        </xs:choice>
</xs:complexType>
<xs:complexType name="AnthropometricLandmarkPointIdCodeType">
        <xs:choice>
            <xs:element name="v" type="xs:int" fixed="0" />
            <xs:element name="g" type="xs:int" fixed="1" />
            <xs:element name="op" type="xs:int" fixed="2" />
            <xs:element name="eu-left" type="xs:int" fixed="3" />
            <xs:element name="eu-right" type="xs:int" fixed="4" />
            <xs:element name="ft-left" type="xs:int" fixed="5" />
            <xs:element name="ft-right" type="xs:int" fixed="6" />
            <xs:element name="tr" type="xs:int" fixed="7" />
            <xs:element name="zy-left" type="xs:int" fixed="8" />
            <xs:element name="zy-right" type="xs:int" fixed="9" />
            <xs:element name="go-left" type="xs:int" fixed="10" />
            <xs:element name="go-right" type="xs:int" fixed="11" />
            <xs:element name="sl" type="xs:int" fixed="12" />
            <xs:element name="pg" type="xs:int" fixed="13" />
            <xs:element name="gn" type="xs:int" fixed="14" />
            <xs:element name="cdl-left" type="xs:int" fixed="15" />
            <xs:element name="cdl-right" type="xs:int" fixed="16" />
            <xs:element name="en-left" type="xs:int" fixed="17" />

        <xs:element name="en-right" type="xs:int" fixed="18" />
        <xs:element name="ex-left" type="xs:int" fixed="19" />
        <xs:element name="ex-right" type="xs:int" fixed="20" />
        <xs:element name="p-left" type="xs:int" fixed="21" />
        <xs:element name="p-right" type="xs:int" fixed="22" />
        <xs:element name="or-left" type="xs:int" fixed="23" />
        <xs:element name="or-right" type="xs:int" fixed="24" />
        <xs:element name="ps-left" type="xs:int" fixed="25" />
        <xs:element name="ps-right" type="xs:int" fixed="26" />
        <xs:element name="pi-left" type="xs:int" fixed="27" />
        <xs:element name="pi-right" type="xs:int" fixed="28" />
        <xs:element name="os-left" type="xs:int" fixed="29" />
        <xs:element name="os-right" type="xs:int" fixed="30" />
        <xs:element name="sci-left" type="xs:int" fixed="31" />
        <xs:element name="sci-right" type="xs:int" fixed="32" />
        <xs:element name="n" type="xs:int" fixed="33" />
        <xs:element name="se" type="xs:int" fixed="34" />
        <xs:element name="al-left" type="xs:int" fixed="35" />
        <xs:element name="al-right" type="xs:int" fixed="36" />
        <xs:element name="prn" type="xs:int" fixed="37" />
        <xs:element name="sn" type="xs:int" fixed="38" />
        <xs:element name="sbal" type="xs:int" fixed="39" />
        <xs:element name="ac-left" type="xs:int" fixed="40" />
        <xs:element name="ac-right" type="xs:int" fixed="41" />
        <xs:element name="mf-left" type="xs:int" fixed="42" />
        <xs:element name="mf-right" type="xs:int" fixed="43" />
        <xs:element name="cph-left" type="xs:int" fixed="44" />
        <xs:element name="cph-right" type="xs:int" fixed="45" />
        <xs:element name="ls" type="xs:int" fixed="46" />
        <xs:element name="li" type="xs:int" fixed="47" />
        <xs:element name="ch-left" type="xs:int" fixed="48" />
        <xs:element name="ch-right" type="xs:int" fixed="49" />
        <xs:element name="sto" type="xs:int" fixed="50" />
        <xs:element name="sa-left" type="xs:int" fixed="51" />
        <xs:element name="sa-right" type="xs:int" fixed="52" />
        <xs:element name="sba-left" type="xs:int" fixed="53" />
        <xs:element name="sba-right" type="xs:int" fixed="54" />
        <xs:element name="pra-left" type="xs:int" fixed="55" />
        <xs:element name="pra-right" type="xs:int" fixed="56" />
        <xs:element name="pa" type="xs:int" fixed="57" />
        <xs:element name="obs-left" type="xs:int" fixed="58" />
        <xs:element name="obs-right" type="xs:int" fixed="59" />
        <xs:element name="obi" type="xs:int" fixed="60" />
        <xs:element name="po" type="xs:int" fixed="61" />
        <xs:element name="t" type="xs:int" fixed="62" />
        /xs:choice>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkPointIdExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="AnthropometricLandmarkPointIdCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="AnthropometricLandmarkPointIdType">
        <xs:choice>
            <xs:element name="code" type="AnthropometricLandmarkPointIdCodeType" />
            <xs:element name="extensionBlock" type="AnthropometricLandmarkPointIdExtensionBlockT
ype" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="LandmarkCoordinatesBaseType">
        <xs:choice>
            <xs:element name="coordinateCartesian2DBlock" type="cmn:CoordinateCartesian2DUnsigne
dShortBlockType" />
            <xs:element name="coordinateTextureImageBlock" type="CoordinateTextureImageBlockT
ype" />
            <xs:element name="coordinateCartesian3DBlock" type="cmn:CoordinateCartesian3DUnsigne
dShortBlockType" />

        </xs:choice>
    </xs:complexType>
    <xs:complexType name="LandmarkCoordinatesExtensionBlockType">
        <xs:sequence>
            <xs:any namespace="##other" processContents="lax"/>
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="LandmarkCoordinatesType">
        <xs:choice>
            <xs:element name="base" type="LandmarkCoordinatesBaseType"/>
            <xs:element name="extensionBlock" type="LandmarkCoordinatesExtensionBlockType"/>
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="CoordinateTextureImageBlockType">
        <xs:sequence>
            <xs:element name="uInPixel" type="xs:unsignedInt" />
            <xs:element name="vInPixel" type="xs:unsignedInt" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="ImageRepresentationType">
        <xs:choice>
            <xs:element name="base" type="ImageRepresentationBaseType" />
            <xs:element name="extensionBlock" type="ImageRepresentationExtensionBlockType" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="ImageRepresentationBaseType">
        <xs:choice>
            <xs:element name="imageRepresentation2DBlock" type="ImageRepresentation2DBlockType"
/>
            <xs:element name="shapeRepresentation3DBlock" type="ShapeRepresentation3DBlockType"
/>
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="ImageRepresentationExtensionBlockType">
        <xs:sequence>
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="ImageRepresentation2DBlockType">
        <xs:sequence>
            <xs:element name="representationData2D" type="xs:base64Binary" />
            <xs:element name="imageInformation2DBlock" type="ImageInformation2DBlockType" />
            <xs:element name="captureDevice2DBlock" type="CaptureDevice2DBlockType"
minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDevice2DBlockType">
        <xs:sequence>
            <xs:element name="captureDeviceSpectral2DBlock" type="CaptureDeviceSpectral2DBlockT
ype" minOccurs="0" />
            <xs:element name="captureDeviceTechnologyId2D" type="CaptureDeviceTechnologyId2DT
ype" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceSpectral2DBlockType">
        <xs:sequence>
            <xs:element name="whiteLight" type="xs:boolean" minOccurs="0" />
            <xs:element name="nearInfrared" type="xs:boolean" minOccurs="0" />
            <xs:element name="thermal" type="xs:boolean" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />

        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceTechnologyId2DCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="staticPhotographFromUnknownSource" type="xs:int" fixed="1" />
            <xs:element name="staticPhotographFromDigitalStillImageCamera" type="xs:int"
fixed="2" />
            <xs:element name="staticPhotographFromScanner" type="xs:int" fixed="3" />
            <xs:element name="videoFrameFromUnknownSource" type="xs:int" fixed="4" />
            <xs:element name="videoFrameFromAnalogueVideoCamera" type="xs:int" fixed="5" />
            <xs:element name="videoFrameFromDigitalVideoCamera" type="xs:int" fixed="6" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceTechnologyId2DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="CaptureDeviceTechnologyId2DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceTechnologyId2DType">
        <xs:choice>
            <xs:element name="code" type="CaptureDeviceTechnologyId2DCodeType" />
            <xs:element name ="extensionBlock" type="CaptureDeviceTechnologyId2DExtensionBlockT
ype" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="ImageInformation2DBlockType">
        <xs:sequence>
            <xs:element name="imageDataFormat" type="ImageDataFormatType" />
            <xs:element name="faceImageKind2D" type="FaceImageKind2DType" minOccurs="0" />
            <xs:element name="postAcquisitionProcessingBlock" type="PostAcquisitionProcessingBlo
ckType" minOccurs="0" />
                <xs:element name="lossyTransformationAttempts" type="LossyTransformationAttemptsT
ype" minOccurs="0" />
            <xs:element name="cameraToSubjectDistance" type="CameraToSubjectDistanceType"
minOccurs="0" />
            <xs:element name="sensorDiagonal" type="SensorDiagonalType" minOccurs="0" />
            <xs:element name="lensFocalLength" type="LensFocalLengthType" minOccurs="0" />
            <xs:element name="imageSizeBlock" type="ImageSizeBlockType" minOccurs="0" />
            <xs:element name="imageFaceMeasurementsBlock" type="ImageFaceMeasurementsBlockType"
minOccurs="0" />
            <xs:element name="imageColourSpace" type="ImageColourSpaceType" minOccurs="0" />
            <xs:element name="referenceColourMappingBlock" type="ReferenceColourMappingBlockT
ype" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="FaceImageKind2DCodeType">
        <xs:choice>
            <xs:element name="mrtd" type="xs:int" fixed="0" />
            <xs:element name="generalPurpose" type="xs:int" fixed="1" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="FaceImageKind2DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="FaceImageKind2DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="FaceImageKind2DType">
        <xs:choice>
            <xs:element name="code" type="FaceImageKind2DCodeType" />
            <xs:element name="extensionBlock" type="FaceImageKind2DExtensionBlockType" />

        </xs:choice>
    </xs:complexType>
    <xs:complexType name="PostAcquisitionProcessingBlockType">
        <xs:sequence>
            <xs:element name="rotated" type="xs:boolean" minOccurs="0" />
            <xs:element name="cropped" type="xs:boolean" minOccurs="0" />
            <xs:element name="downSampled" type="xs:boolean" minOccurs="0" />
            <xs:element name="whiteBalanceAdjusted" type="xs:boolean" minOccurs="0" />
            <xs:element name="multiplyCompressed" type="xs:boolean" minOccurs="0" />
            <xs:element name="interpolated" type="xs:boolean" minOccurs="0" />
            <xs:element name="contrastStretched" type="xs:boolean" minOccurs="0" />
            <xs:element name="poseCorrected" type="xs:boolean" minOccurs="0" />
            <xs:element name="multiViewImage" type="xs:boolean" minOccurs="0" />
            <xs:element name="ageProgressed" type="xs:boolean" minOccurs="0" />
            <xs:element name="superResolutionProcessed" type="xs:boolean" minOccurs="0" />
            <xs:element name="normalised" type="xs:boolean" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="LossyTransformationAttemptsCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="zero" type="xs:int" fixed="1" />
            <xs:element name="one" type="xs:int" fixed="2" />
            <xs:element name="moreThanOne" type="xs:int" fixed="3" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="LossyTransformationAttemptsExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="LossyTransformationAttemptsCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="LossyTransformationAttemptsType">
        <xs:choice>
            <xs:element name="code" type="LossyTransformationAttemptsCodeType" />
            <xs:element name="extensionBlock" type="LossyTransformationAttemptsExtensionBlockT
ype" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="ImageDataFormatCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="other" type="xs:int" fixed="1" />
            <xs:element name="jpeg" type="xs:int" fixed="2" />
            <xs:element name="jpeg2000Lossy" type="xs:int" fixed="3" />
            <xs:element name="jpeg2000Lossless" type="xs:int" fixed="4" />
            <xs:element name="png" type="xs:int" fixed="5" />
            <xs:element name="pgm" type="xs:int" fixed="6" />
            <xs:element name="ppm" type="xs:int" fixed="7" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="ImageDataFormatExtensionBlockType">
        <xs:sequence>
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="ImageDataFormatType">
        <xs:choice>
            <xs:element name="code" type="ImageDataFormatCodeType" />
            <xs:element name="extensionBlock" type="ImageDataFormatExtensionBlockType" />
        </xs:choice>
    </xs:complexType>

<xs:simpleType name="CameraToSubjectDistanceType">
    <xs:restriction base="xs:unsignedInt">
        <xs:minInclusive value="0" />
        <xs:maxInclusive value="50000" />
    </xs:restriction>
</xs:simpleType>
<xs:simpleType name="SensorDiagonalType">
    <xs:restriction base="xs:unsignedInt">
        <xs:minInclusive value="0" />
        <xs:maxInclusive value="2000" />
    </xs:restriction>
</xs:simpleType>
<xs:simpleType name="LensFocalLengthType">
    <xs:restriction base="xs:unsignedInt">
        <xs:minInclusive value="0" />
        <xs:maxInclusive value="2000" />
    </xs:restriction>
</xs:simpleType>
<xs:complexType name="ImageSizeBlockType">
    <xs:sequence>
        <xs:element name="width" type="ImageSizeType" />
        <xs:element name="height" type="ImageSizeType" />
    </xs:sequence>
</xs:complexType>
<xs:simpleType name="ImageSizeType">
    <xs:restriction base="xs:integer">
        <xs:minInclusive value="0" />
        <xs:maxInclusive value="65535" />
    </xs:restriction>
</xs:simpleType>
<xs:complexType name="ImageFaceMeasurementsBlockType">
    <xs:sequence>
        <xs:element name="imageHeadWidth" type="xs:unsignedInt" minOccurs="0" />
        <xs:element name="imageInterEyeDistance" type="xs:unsignedInt" minOccurs="0" />
        <xs:element name="imageEyeToMouthDistance" type="xs:unsignedInt" minOccurs="0" />
        <xs:element name="imageHeadLength" type="xs:unsignedInt" minOccurs="0" />
        <xs:any namespace="##other" processContents="lax" minOccurs="0" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="ImageColourSpaceCodeType">
    <xs:choice>
        <xs:element name="unknown" type="xs:int" fixed="0" />
        <xs:element name="other" type="xs:int" fixed="1" />
        <xs:element name="rgb24Bit" type="xs:int" fixed="2" />
        <xs:element name="rgb48Bit" type="xs:int" fixed="3" />
        <xs:element name="yuv422" type="xs:int" fixed="4" />
        <xs:element name="greyscale8Bit" type="xs:int" fixed="5" />
        <xs:element name="greyscale16Bit" type="xs:int" fixed="6" />
    </xs:choice>
</xs:complexType>
<xs:complexType name="ImageColourSpaceExtensionBlockType">
    <xs:sequence>
        <xs:element name="fallback" type="ImageColourSpaceCodeType" />
        <xs:any namespace="##other" processContents="lax" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="ImageColourSpaceType">
    <xs:choice>
        <xs:element name="code" type="ImageColourSpaceCodeType" />
        <xs:element name="extensionBlock" type="ImageColourSpaceExtensionBlockType" />
    </xs:choice>
</xs:complexType>

    <xs:complexType name="ReferenceColourMappingBlockType">
        <xs:sequence>
                <xs:element name="referenceColourSchema" type="xs:base64Binary" minOccurs="0" />
                <xs:element name="referenceColourDefinitionAndValueBlocks" type="ReferenceColourDefi
nitionAndValueBlocksType" minOccurs="0" />
                <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="ReferenceColourDefinitionAndValueBlocksType">
        <xs:sequence>
                <xs:element name="referenceColourDefinitionAndValueBlock" type="ReferenceColourDefin
itionAndValueBlockType" maxOccurs="unbounded" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="ReferenceColourDefinitionAndValueBlockType">
        <xs:sequence>
            <xs:element name="referenceColourDefinition" type="xs:base64Binary" minOccurs="0" />
            <xs:element name="referenceColourValue" type="xs:base64Binary" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="ShapeRepresentation3DBlockType">
        <xs:sequence>
            <xs:element name="representationData3D" type="xs:base64Binary" />
            <xs:element name="imageInformation3DBlock" type="ImageInformation3DBlockType" />
            <xs:element name="captureDevice3DBlock" type="CaptureDevice3DBlockType"
minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDevice3DBlockType">
        <xs:sequence>
            <xs:element name="modus3D" type="Modus3DType" minOccurs="0" />
            <xs:element name="captureDeviceTechnologyId3D" type="CaptureDeviceTechnologyId3DT
ype" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="Modus3DCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="active" type="xs:int" fixed="1" />
            <xs:element name="passive" type="xs:int" fixed="2" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="Modus3DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="Modus3DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="Modus3DType">
        <xs:choice>
            <xs:element name="code" type="Modus3DCodeType" />
            <xs:element name="extensionBlock" type="Modus3DExtensionBlockType" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceTechnologyId3DCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="stereoscopicScanner" type="xs:int" fixed="1" />
            <xs:element name="movingLaserLine" type="xs:int" fixed="2" />
            <xs:element name="structuredLight" type="xs:int" fixed="3" />

        <xs:element name="colourCodedLight" type="xs:int" fixed="4" />
        <xs:element name="timeOfFlight" type="xs:int" fixed="5" />
        <xs:element name="shapeFromShading" type="xs:int" fixed="6" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceTechnologyId3DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="CaptureDeviceTechnologyId3DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CaptureDeviceTechnologyId3DType">
        <xs:choice>
            <xs:element name="code" type="CaptureDeviceTechnologyId3DCodeType" />
            <xs:element name="extensionBlock" type="CaptureDeviceTechnologyId3DExtensionBlockT
ype" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="ImageInformation3DBlockType">
        <xs:sequence>
            <xs:element name="representationKind3D" type="RepresentationKind3DType" />
            <xs:element name="coordinateSystem3D" type="CoordinateSystem3DType" />
            <xs:element name="cartesianScalesAndOffsets3DBlock" type="CartesianScalesAndOffsets3
DBlockType" />
            <xs:element name="imageColourSpace" type="ImageColourSpaceType" minOccurs="0" />
            <xs:element name="faceImageKind3D" type="FaceImageKind3DType" minOccurs="0" />
            <xs:element name="imageSizeBlock" type="ImageSizeBlockType" minOccurs="0" />
            <xs:element name="physicalFaceMeasurements3DBlock" type="PhysicalFaceMeasurements3DBl
ockType" minOccurs="0" />
            <xs:element name="postAcquisitionProcessingBlock" type="PostAcquisitionProcessingBlo
ckType" minOccurs="0" />
            <xs:element name="texturedImageResolution3DBlock" type="TexturedImageResolution3DBlo
ckType" minOccurs="0" />
            <xs:element name="textureMap3DBlock" type="TextureMap3DBlockType" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="RepresentationKind3DBaseType">
        <xs:choice>
            <xs:element name="vertex3DBlock" type="Vertex3DBlockType" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="RepresentationKind3DExtensionBlockType">
        <xs:sequence>
            <xs:any namespace="##other" processContents="lax"/>
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="RepresentationKind3DType">
        <xs:choice>
            <xs:element name="base" type="RepresentationKind3DBaseType"/>
            <xs:element name="extensionBlock" type="RepresentationKind3DExtensionBlockType"/>
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="Vertex3DBlockType">
        <xs:sequence>
            <xs:element name="vertexInformation3DBlocks" type="VertexInformation3DBlocksType"
minOccurs="0" />
            <xs:element name="vertexTriangleData3DBlocks" type="VertexTriangleData3DBlocksType"
minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="VertexInformation3DBlocksType">

        <xs:sequence>
            <xs:element name="vertexInformation3DBlock" type="VertexInformation3DBlockType"
maxOccurs="unbounded" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="VertexInformation3DBlockType">
        <xs:sequence>
            <xs:element name="vertexCoordinates3DBlock" type="cmn:CoordinateCartesian3DUnsignedS
hortBlockType" />
            <xs:element name="vertexId3D" type="xs:unsignedInt" minOccurs="0" />
            <xs:element name="vertexNormals3DBlock" type="cmn:CoordinateCartesian3DUnsignedShort
BlockType" minOccurs="0" />
            <xs:element name="vertexTextures3DBlock" type="cmn:CoordinateCartesian2DUnsignedShor
tBlockType" minOccurs="0" />
            <xs:element name="errorMap3D" type="xs:base64Binary" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="VertexTriangleData3DBlocksType">
        <xs:sequence>
            <xs:element name="vertexTriangleData3DBlock" type="VertexTriangleData3DBlockType"
maxOccurs="unbounded" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="VertexTriangleData3DBlockType">
        <xs:sequence>
            <xs:element name="triangleIndex1" type="xs:unsignedInt" />
            <xs:element name="triangleIndex2" type="xs:unsignedInt" />
            <xs:element name="triangleIndex3" type="xs:unsignedInt" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CoordinateSystem3DCodeType">
        <xs:choice>
            <xs:element name="cartesianCoordinateSystem3D" type="xs:int" fixed="0" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="CoordinateSystem3DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="CoordinateSystem3DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="CoordinateSystem3DType">
        <xs:choice>
            <xs:element name="code" type="CoordinateSystem3DCodeType" />
            <xs:element name="extensionBlock" type="CoordinateSystem3DExtensionBlockType" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="CartesianScalesAndOffsets3DBlockType">
        <xs:sequence>
            <xs:element name="scaleX" type="xs:decimal" />
            <xs:element name="scaleY" type="xs:decimal" />
            <xs:element name="scaleZ" type="xs:decimal" />
            <xs:element name="offsetX" type="xs:decimal" />
            <xs:element name="offsetY" type="xs:decimal" />
            <xs:element name="offsetZ" type="xs:decimal" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="FaceImageKind3DCodeType">
        <xs:choice>
            <xs:element name="texturedFaceImage3d" type="xs:int" fixed="0" />
        </xs:choice>
    </xs:complexType>

<xs:complexType name="FaceImageKind3DExtensionBlockType">
    <xs:sequence>
        <xs:element name="fallback" type="FaceImageKind3DCodeType" />
        <xs:any namespace="##other" processContents="lax" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="FaceImageKind3DType">
    <xs:choice>
        <xs:element name="code" type="FaceImageKind3DCodeType" />
        <xs:element name="extensionBlock" type="FaceImageKind3DExtensionBlockType" />
    </xs:choice>
</xs:complexType>
<xs:complexType name="PhysicalFaceMeasurements3DBlockType">
    <xs:sequence>
        <xs:element name="physicalHeadWidth3D" type="xs:int" minOccurs="0" />
        <xs:element name="physicalInterEyeDistance3D" type="xs:int" minOccurs="0" />
        <xs:element name="physicalEyeToMouthDistance3D" type="xs:int" minOccurs="0" />
        <xs:element name="physicalHeadLength3D" type="xs:int" minOccurs="0" />
        <xs:any namespace="##other" processContents="lax" minOccurs="0" />
    </xs:sequence>
</xs:complexType>
<xs:complexType name="TexturedImageResolution3DBlockType">
    <xs:sequence>
        <xs:element name="mMShapeXResolution3D" type="xs:decimal" minOccurs="0" />
        <xs:element name="mMShapeYResolution3D" type="xs:decimal" minOccurs="0" />
        <xs:element name="mMShapeZResolution3D" type="xs:decimal" minOccurs="0" />
        <xs:element name="mMTextureResolution3D" type="xs:decimal" minOccurs="0" />
        <xs:element name="textureAcquisitionPeriod3D" type="xs:decimal" minOccurs="0" />
        <xs:element name="faceAreaScanned3DBlock" type="FaceAreaScanned3DBlockType"
minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="FaceAreaScanned3DBlockType">
        <xs:sequence>
            <xs:element name="frontOfTheHead" type="xs:boolean" minOccurs="0" />
            <xs:element name="chin" type="xs:boolean" minOccurs="0" />
            <xs:element name="ears" type="xs:boolean" minOccurs="0" />
            <xs:element name="neck" type="xs:boolean" minOccurs="0" />
            <xs:element name="backOfTheHead" type="xs:boolean" minOccurs="0" />
            <xs:element name="fullHead" type="xs:boolean" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="TextureMap3DBlockType">
        <xs:sequence>
            <xs:element name="textureMapData3D" type="xs:base64Binary" />
            <xs:element name="imageDataFormat" type="ImageDataFormatType" />
            <xs:element name="textureCaptureDeviceSpectral3D" type="TextureCaptureDeviceSpectral
3DType" minOccurs="0" />
            <xs:element name="textureStandardIlluminant3D" type="TextureStandardIlluminant3DT
ype" minOccurs="0" />
            <xs:element name="errorMap3D" type="xs:base64Binary" minOccurs="0" />
            <xs:any namespace="##other" processContents="lax" minOccurs="0" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="TextureCaptureDeviceSpectral3DCodeType">
        <xs:choice>
            <xs:element name="unknown" type="xs:int" fixed="0" />
            <xs:element name="other" type="xs:int" fixed="1" />
            <xs:element name="white" type="xs:int" fixed="2" />
            <xs:element name="veryNearInfrared" type="xs:int" fixed="3" />
            <xs:element name="shortWaveInfrared" type="xs:int" fixed="4" />
        </xs:choice>

    </xs:complexType>
    <xs:complexType name="TextureCaptureDeviceSpectral3DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="TextureCaptureDeviceSpectral3DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="TextureCaptureDeviceSpectral3DType">
        <xs:choice>
            <xs:element name="code" type="TextureCaptureDeviceSpectral3DCodeType" />
            <xs:element name="extensionBlock" type="TextureCaptureDeviceSpectral3DExtensionBlock
Type" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="TextureStandardIlluminant3DCodeType">
        <xs:choice>
            <xs:element name="d30" type="xs:int" fixed="0" />
            <xs:element name="d35" type="xs:int" fixed="1" />
            <xs:element name="d40" type="xs:int" fixed="2" />
            <xs:element name="d45" type="xs:int" fixed="3" />
            <xs:element name="d50" type="xs:int" fixed="4" />
            <xs:element name="d55" type="xs:int" fixed="5" />
            <xs:element name="d60" type="xs:int" fixed="6" />
            <xs:element name="d65" type="xs:int" fixed="7" />
            <xs:element name="d70" type="xs:int" fixed="8" />
            <xs:element name="d75" type="xs:int" fixed="9" />
            <xs:element name="d80" type="xs:int" fixed="10" />
        </xs:choice>
    </xs:complexType>
    <xs:complexType name="TextureStandardIlluminant3DExtensionBlockType">
        <xs:sequence>
            <xs:element name="fallback" type="TextureStandardIlluminant3DCodeType" />
            <xs:any namespace="##other" processContents="lax" />
        </xs:sequence>
    </xs:complexType>
    <xs:complexType name="TextureStandardIlluminant3DType">
        <xs:choice>
            <xs:element name="code" type="TextureStandardIlluminant3DCodeType" />
            <xs:element name="extensionBlock" type ="TextureStandardIlluminant3DExtensionBlockT
ype" />
        </xs:choice>
    </xs:complexType>
</xs:schema>

A binary TLV encoding example based on the ASN. 1 schema in Annex A. 1 is given below. This example encoding is available at http://standards.iso.org/iso-iec/39794/-5/ed-1/en.
以下提供基於附錄 A.1 中 ASN.1 架構的二進位 TLV 編碼範例。此編碼範例可於 http://standards.iso.org/iso-iec/39794/-5/ed-1/en 取得。