CEN/TS 17051:2017
(Main)Full body photography
Full body photography
This Technical Specification is intended to provide a Full Body Image Format for pattern recognition services and applications requiring the exchange of full body image data. Its typical applications include:
a) human examination of high resolution full body images;
b) human verification of identity based on full body images;
c) computer automated full body identification;
d) computer automated full body verification.
To enable applications on a wide variety of devices, including devices that have limited data storage, and to improve image recognition accuracy, ISO/IEC 19794 standards are followed regarding not only data format, but also scene constraints (lighting, pose, expression, etc.), photographic properties (positioning, camera focus, etc.), and digital image attributes (image resolution, image size, etc.).
A specific biometric profile for cross-border interoperability is required for full body photographs. Full body photography standardization is required to get good quality database images for identification and verification using video surveillance and other similar system generated images. At the moment, border guards take full body photographs using local practices for enrolment, verification, identification and watch list identification.
ISO 22311:2012 [10] specifies a common output file format that can be extracted from the video-surveillance contents collection systems to perform necessary processing. ISO/IEC 30137 [8] specifies data formats for storing, recording and transmitting biometric information acquired via a video surveillance system. The EN 62676 series [11] defines video surveillance systems for use in security applications.
The purpose of this Technical Specification is to provide expert guidance (i.e. best practices) for the photography of full body, especially when the resulting images are to be used for purposes of identification and verification, either by automated recognition systems or by human viewers.
Ganzkörperfotografie
Photographie du corps entier
Fotografija celega telesa
Ta tehnična specifikacija je namenjena zagotavljanju formata slike celega telesa za storitve in aplikacije za prepoznavanje vzorcev, pri katerih je potrebna izmenjava podatkov o sliki celega telesa. Običajni načini uporabe vključujejo:
a) človeški pregled visokoločljivostnih slik celega telesa;
b) človeško preverjanje identitete na podlagi slik celega telesa;
c) računalniško avtomatizirano prepoznavanje celega telesa;
d) računalniško avtomatizirano preverjanje celega telesa;
Za omogočanje uporabe prek številnih naprav, vključno z napravami z omejenim prostorom za shranjevanje podatkov, in za izboljšanje natančnosti prepoznavanja slik je treba upoštevati standarde ISO/IEC 19794 ne le glede formata podatkov, ampak tudi glede omejitev prizora (osvetlitev, položaj, izraz itd.), lastnosti fotografiranja (določanje položaja, fokus kamere itd.) in atributov digitalnih slik (ločljivost slike, velikost slike itd.).
Za fotografije celega telesa je potreben poseben biometrični profil za izvozno medobratovalnost. Standardizacija fotografije celega telesa je potrebna za pridobivanje slik za zbirko podatkov dobre kakovosti za identifikacijo in preverjanje z video nadzorom in drugimi podobnimi sistemsko ustvarjenimi slikami. Trenutno mejni policisti fotografirajo celo telo s pomočjo lokalnih praks za vpis, preverjanje, identifikacijo in identifikacijo na seznamu opazovanih oseb.
Standard ISO 22311:2012 [10] določa skupno izhodno obliko zapisa datoteke, ki jo je mogoče pridobiti iz zbirnih sistemov video nadzornih vsebin za izvajanje potrebne obdelave. Standard ISO/IEC 30137 [8] določa podatkovne formate za shranjevanje, snemanje in prenašanje biometričnih informacij, pridobljenih prek video nadzornega sistema. Skupina standardov EN 62676 [11] določa video nadzorne sisteme za varnostne aplikacije.
Namen te tehnične specifikacije je zagotoviti strokovne smernice (tj. najboljše prakse) za fotografiranje celega telesa, zlasti kadar se bodo nastale slike uporabljale za namene identifikacije in preverjanja z avtomatiziranimi sistemi za prepoznavanje ali osebnimi pregledi.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2017
Fotografija celega telesa
Full body photography
Ganzkörperfotografie
Photographie du corps entier
Ta slovenski standard je istoveten z: CEN/TS 17051:2017
ICS:
35.240.15 ,GHQWLILNDFLMVNHNDUWLFHýLSQH Identification cards. Chip
NDUWLFH%LRPHWULMD cards. Biometrics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TS 17051
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
May 2017
TECHNISCHE SPEZIFIKATION
ICS 35.240.15
English Version
Full body photography
Photographie du corps entier Ganzköperfotografie
This Technical Specification (CEN/TS) was approved by CEN on 6 February 2017 for provisional application.
The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.
CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17051:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative reference . 6
3 Terms and definitions . 6
4 Abbreviated terms . 7
5 Conformance . 8
6 Data structures. 8
6.1 Body Tree concept . 8
6.2 Camera images . 8
6.3 Metadata . 9
6.3.1 General . 9
6.3.2 Pose Angle – Yaw . 9
6.3.3 Pose angle encoding . 10
7 Recommendations for Full Body Photography Systems . 11
7.1 Architecture . 11
7.2 Usability and accessibility. 11
7.3 Practical applications . 11
7.4 Photograph sets . 12
7.4.1 General . 12
7.4.2 Gait recognition . 12
7.4.3 Image recognition . 14
8 Full body photography . 14
8.1 Full body image technical requirements . 14
8.1.1 General . 14
8.1.2 Example full body photographs . 14
8.2 Full body photography session . 16
8.2.1 Typical workflow for full body photography session . 16
8.2.2 Full body photograph content requirements. 17
9 Photo studio recommendations for full body photography . 17
9.1 General . 17
9.2 Recommended camera orientation . 18
9.3 Recommended positioning and distance between camera and subject . 18
9.4 Recommended focusing settings . 19
9.5 Recommended white balance settings . 19
9.6 Recommended backdrop design . 19
9.6.1 General . 19
9.6.2 Example configurations for a photo studio. 20
10 Photography Use Cases . 21
10.1 General . 21
10.2 Photographic System Baseline Use Cases . 21
11 Image Acquisition Measurement Methods . 23
11.1 General . 23
11.2 Exposure metering at various spots on a subject . 24
11.3 Standard Test Chart Setup . 24
11.3.1 The ISO 12233 Test Chart . 25
11.3.2 Grey scale, colour checking and EN 61966-8 test charts . 26
11.4 Measurement preparations and analysis . 26
11.4.1 General . 26
11.4.2 Preparations . 27
11.4.3 Analysis . 27
11.4.4 Camera image dynamic range checking . 28
11.4.5 Lighting checking . 28
11.4.6 Background checking . 28
12 Summary . 29
Bibliography . 30
European foreword
This document (CEN/TS 17051:2017) has been prepared by Technical Committee CEN/TC 224
“Personal identification, electronic signature and cards and their related systems and operations”, the
secretariat of which is held by AFNOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Introduction
Most countries around the world are provided with identification systems for law enforcement and
border control. Many of these systems are not limited to face recognition purposes. To be consistent in
such deployments and processes, technical documents, guidelines and best practice recommendations
are being developed by different groups. However, these documents are primarily focused on travel
document systems and the technical and operational issues to be considered when planning and
deploying such systems in Europe. Full body recognition is the biometric mode used as a secondary
mode in addition to face recognition or for forensic purposes. Face recognition is the biometric mode
suited to the practicalities of travel documents.
There is little guidance covering the full body imaging for cross-border interoperability or law
enforcement services. There is a need for guidance for the use of high quality digital cameras and video
surveillance devices for full body photography. This Technical Specification is not restricted to body
image data. For example, it may be possible to extract iris images in some scenarios where high
resolution cameras are used or body silhouette data for gait recognition when low resolution cameras
are in use.
1 Scope
This Technical Specification is intended to provide a Full Body Image Format for pattern recognition
services and applications requiring the exchange of full body image data. Its typical applications
include:
a) human examination of high resolution full body images;
b) human verification of identity based on full body images;
c) computer automated full body identification;
d) computer automated full body verification.
To enable applications on a wide variety of devices, including devices that have limited data storage,
and to improve image recognition accuracy, ISO/IEC 19794 standards are followed regarding not only
data format, but also scene constraints (lighting, pose, expression, etc.), photographic properties
(positioning, camera focus, etc.), and digital image attributes (image resolution, image size, etc.).
A specific biometric profile for cross-border interoperability is required for full body photographs. Full
body photography standardization is requ
...
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