ISO/IEC TECHNICAL REPORT TR 29794-5 First edition 2010-04-01 Information technology Biometric sample quality - Part 5: Face image data Technologies de I'information - Qualite d'échantllon biometrique - Partie 5: Données d'image de face Reference number ISO/IEC TR 29794-5:2010(E) IEC ISO @ ISO/IEC 2010 IHSunder Not for Resale ISO/IEC TR29794-5:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO/IEC2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland Copyrghtinteratinal Oorganization for Standardization @ ISO/IEC 2010 - All rights reserved I without license from IHS Not for Resale ISO/IEC TR 29794-5:2010(E) Contents Page Foreword .iv Introduction. 1 Scope 2 Normative references. 3 Terms and definitions . 4 Abbreviated terms.... 5 Approaches to Face Image Quality 6 Categorization of Facial Quality.... 7 Facial Image Quality Analysis .... 7.1 Dynamic Subject Characteristics 7.1.1 Subject's Behaviour... 7.1.2 Analysis Based on Statistical Differences of the Left and Right Half of the Face. 7.2 StaticCharacteristicsoftheAcquisitionProcess 7.2.1 Image Resolution and Size .... 7.2.2 .8 7.3 Characteristics of Image Acquisition .... 7.3.1 Image Properties .. .8 7.3.2 Image Appearance.... 7.3.3 Illumination Intensity.. 7.3.4 Image Brightness .. 9 7.3.5 Image Contrast ... 10 7.3.6 Exposure. 7.3.7 7.3.8 Colour.. 12 7.3.9 Subject-Camera distance.... 12 Bibliography... 13 CopyrightInenationalOganzastandardization Allrightsreseved ii inse from IHS Not for Resale