ISO/IEC 39794-16:2021

INTERNATIONAL ISO/IEC
STANDARD 39794-16
First edition
2021-06
Information technology — Extensible
biometric data interchange formats —
Part 16:
Full body image data
Reference number
©
ISO/IEC 2021
© ISO/IEC 2021
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ii © ISO/IEC 2021 – All rights reserved

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Abbreviated terms .10
5 Conformance .13
6 Modality specific information .13
6.1 Purpose .13
6.2 Digital image encoding .14
6.3 Photographic requirements and recommendations for white light imaging .14
6.3.1 General.14
6.3.2 Contrast and saturation .14
6.3.3 Focus and depth of field .15
6.3.4 Greyscale density .15
6.3.5 Colour .15
6.3.6 Radial distortion of the camera lens .15
6.4 Digital requirements and recommendations for images .16
6.4.1 General.16
6.4.2 Geometry .16
6.4.3 Colour .16
6.4.4 Formatting requirements and recommendations .16
6.5 Recommendations for full body image data systems .16
6.5.1 General.16
6.5.2 Architecture .17
6.5.3 Usability and accessibility .17
6.5.4 Practical applications .17
6.6 Full body imaging technical requirements .18
6.6.1 General.18
6.6.2 Optical distortion . .18
6.6.3 Colour fidelity .18
6.6.4 Example full body photographs .19
6.7 Full body photography session .21
6.7.1 General.21
6.7.2 Typical workflow for full body photography session .21
6.7.3 Full body photograph content requirements .22
6.8 Photo studio recommendations for full body photography .22
6.8.1 General.22
6.8.2 Recommended camera orientation and margins .23
6.8.3 Recommended positioning and distance between camera and subject .23
6.8.4 Recommended focusing settings .24
6.8.5 Recommended white balance settings for white light imaging.24
6.8.6 Recommended backdrop design .24
6.8.7 Example configurations for a photo studio .25
6.8.8 Basic fidelity image test for white light imaging .26
6.9 Non-white light or multispectral imaging .27
6.9.1 General.27
6.9.2 Infrared imaging . . .28
6.9.3 Ultraviolet imaging .29
6.10 Submillimetre imaging .29
6.11 Imaging use cases .30
6.11.1 General.30
© ISO/IEC 2021 – All rights reserved iii

6.11.2 Imaging system baseline use cases .30
7 Abstract data elements .32
7.1 Overview .32
7.1.1 Content and notation .32
7.1.2 Body tree concept .33
7.1.3 Anthropometric data models .36
7.1.4 Structure overview .36
7.1.5 Data conventions .38
7.2 Body image data block .38
7.3 Version block .39
7.4 Representation block .39
7.5 Representation ID.39
7.6 Capture date/time block . .39
7.7 Quality blocks .39
7.8 PAD data block.40
7.9 Session identifier.40
7.10 Derived from .40
7.11 Capture device block .40
7.12 Model identifier block .40
7.13 Certification identifier block .40
7.14 Body part number .41
7.15 Pose angle block .42
7.15.1 Yaw angle, Y .44
7.15.2 Pitch angle, P .44
7.15.3 Ro
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