ANSI INCITS ISO IEC 29109-5-2012 Information technology - Conformance testing methodology for biometric data interchange formats defined in ISO IEC 19794 - Part 5 Face image data.pdf

1、 INCITS/ISO/IEC 29109-5:2012 2013 ISO/IEC 29109-5:2012 Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 5: Face image data INCITS/ISO/IEC 29109-5:2012 2013 PDF disclaimer This PDF file may contain embedded typefaces. In accor

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4、ing. 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. Adopted by INCITS (InterNational Committee for Information Technology Stand

5、ards) as an American National Standard. Date of ANSI Approval: 6/26/2013 Published by American National Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyright 2013 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject to copyright cl

6、aims of International Standardization Organization (ISO), International Electrotechnical Commission (IEC), American National Standards Institute (ANSI), and Information Technology Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, including an electron

7、ic retrieval system, without the prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America ii ITIC 2013 All rights reserved ISO/IEC 29109-5:2012(E) ISO/IEC 2012 All rights re

8、served iiiContents Page Foreword iv Introduction . v 1 Scope 1 2 Conformance . 1 3 Normative references 2 4 Terms and definitions . 2 5 Symbols and abbreviated terms 2 6 Conformance testing methodology . 2 6.1 Overview . 2 6.2 Table of requirements in the base standard . 2 6.3 ISO/IEC 19794-5:2005 L

9、evel 1 and 2 test assertions 11 Bibliography 26 ISO/IEC 29109-5:2012(E) iv ISO/IEC 2012 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bod

10、ies 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

11、international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules g

12、iven in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approva

13、l by at least 75 % of the national bodies casting a vote. 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. ISO/IEC 29109-5 was prepared by Joi

14、nt Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 37, Biometrics. This second edition cancels and replaces the first edition (ISO/IEC 29109-5:2011), which has been technically revised. ISO/IEC 29109 consists of the following parts, under the general title Information tech

15、nology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794: Part 1: Generalized conformance testing methodology Part 2: Finger minutiae data Part 4: Finger image data Part 5: Face image data Part 6: Iris image data Part 7: Signature/sign time series data P

16、art 8: Finger pattern skeletal data Part 9: Vascular image data Part 10: Hand geometry silhouette data ISO/IEC 29109-5:2012(E) ISO/IEC 2012 All rights reserved vIntroduction ISO/IEC 19794-5:2005 specifies a data record interchange format for storing, recording, and transmitting one or more face imag

17、es within a Common Biometric Exchange Formats Framework (CBEFF) data structure. Each image is accompanied by subject-specific and image-specific metadata contained in a header record. This part of ISO/IEC 29109 establishes tests for checking the correctness of the binary record. The objective of ISO

18、/IEC 19794-5:2005 cannot be completely achieved until biometric products can be tested to determine whether they conform to those specifications. Conforming implementations are a necessary prerequisite for achieving interoperability among implementations; therefore there is a need for a standardized

19、 conformance testing methodology, test assertions, and test procedures as applicable to specific modalities addressed by each part of ISO/IEC 19794. The test assertions will cover as much as practical of the ISO/IEC 19794 requirements (covering the most critical features), so that the conformity res

20、ults produced by the test suites will reflect the real degree of conformity of the implementations to ISO/IEC 19794 data interchange format records. This is the motivation for the development of this conformance testing methodology. This part of ISO/IEC 29109 supports those applications that require

21、 use of face image data according to ISO/IEC 19794-5:2005. It defines a testing methodology to assure conformance of a vendors application or service to the base ISO/IEC 19794-5:2005 specification. Thus, this part of ISO/IEC 29109 is intended to: establish elements of the conformance testing met hod

22、ology framework that are specific to the face image-based data record requirements of ISO/IEC 19794-5:2005 conformance testing; define requirements and guidelines for specifying confor mance test suites and related test methods for measuring conformity of products and services to the face image-base

23、d data record requirements of ISO/IEC 19794-5:2005; and define test procedures to be followed before, during, and after conformance testing. This part of ISO/IEC 29109 is applicable to the development and use of conformity test method specifications, conformity test suites for ISO/IEC 19794-5:2005 r

24、ecords, and conformance testing programs for ISO/IEC 19794-5:2005 conformant products. It is intended primarily for use by testing organizations, but may be applied by developers and users of test method specifications and test method implementations. INTERNATIONAL STANDARD ISO/IEC 29109-5:2012(E) I

25、SO/IEC 2012 All rights reserved 1Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 5: Face image data 1 Scope This part of ISO/IEC 29109 specifies elements of conformance testing methodology, test assertions, and test procedur

26、es as applicable to two-dimensional face images defined in the ISO/IEC 19794-5:2005 biometric data interchange format standard for face image data. This part of ISO/IEC 29109 establishes test assertions of the structure of the face image data format as specified in ISO/IEC 19794-5:2005 (Type A Level

27、 1 as defined in ISO/IEC 29109-1:2009), test assertions of internal consistency by checking the types of values that may be contained within each field (Type A Level 2 as defined in ISO/IEC 29109-1:2007), tests of semantic assertions (Type A Level 3 as defined in ISO/IEC 29109-1:2009). This part of

28、ISO/IEC 29109 does not establish tests of conformance of 3D face reco rds defined in ISO/IEC 19794-5:2005/Amd.2:2009, tests of conformance of CBEFF stru ctures required by ISO/IEC 19794-5:2005, tests of consistency with the input biometric data record (Level 3), tests of conformance of the image dat

29、a to the quality-related specifications of ISO/IEC 19794-5:2005, tests of conformance of the image data blocks to the respective JPEG or JPEG 2000 standards, tests of other characteristics of biometric products or other types of testing of biometric products (e.g. acceptance, performance, robustness

30、, security). 2 Conformance Biometric data interchange format conformance tests conform to this part of ISO/IEC 29109 if they satisfy all of the normative requirements related to Clause 6. Specifically, they shall use the test methodology specified in Clauses 6, 7 and 8 of ISO/IEC 29109-1, and all Le

31、vel 1 and Level 2 tests shall use the assertions defined in Table 2 of Clause 6 of this part of ISO/IEC 29109. ISO/IEC 29109-5:2012(E) 2 ISO/IEC 2012 All rights reservedImplementations of ISO/IEC 19794-5:2005 tested according to the methodology specified shall be able to claim conformance only to th

32、ose biometric data record requirements specified in ISO/IEC 19794-5:2005 that are tested by the test methods established by this methodology. Implementations of ISO/IEC 19794-5:2005 do not necessarily need to conform to all possible aspects of ISO/IEC 19794-5:2005, but only to those ISO/IEC 19794-5:

33、2005 requirements that are claimed to be supported by the implementation in an Implementation Conformance Statement, filled out in accordance with Clause 8 of ISO/IEC 29109-1 and Table 1 of Clause 6 in this part of ISO/IEC 29109. 3 Normative references The following referenced documents are indispen

34、sable for the application 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 19794-5:2005, Information technology Biometric data interchange formats Part 5: Face ima

35、ge data ISO/IEC 29109-1:2009, Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 1: Generalized conformance testing methodology 4 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/I

36、EC 29109-1 apply. 5 Symbols and abbreviated terms For the purposes of this document, the symbols and abbreviated terms given in ISO/IEC 29109-1 apply. 6 Conformance testing methodology 6.1 Overview The testing methodology specified in Clauses 6, 7 and 8 of ISO/IEC 29109-1 shall apply. The content of

37、 the tables below is based on the conformance testing methodology outlined in ISO/IEC 29109-1 and shall only be used in the context of that testing methodology. 6.2 Table of requirements in the base standard The normative requirements of ISO/IEC 19794-5:2005 are listed in Table 1. The supplier of th

38、e IUT can explain which optional components of the standard are supported and the testing laboratory can note the results of the test. Under subformat applicability the columns labelled B, F and T indicate the Basic, Full Frontal and Token Frontal image types. ISO/IEC 29109-5:2012(E) ISO/IEC 2012 Al

39、l rights reserved 3Table 1 Requirements of the Base Standard (ISO/IEC 19794-5:2005) Requi-rement ID Ref. in Base Std Requirement Summary Level Status Subformat Applicability IUT Support Supported Range Test Result B F T R-1 5.2.1 Within the record format and all well-defined data blocks therein, all

40、 multi-byte quantities are implied shall stored in Big-Endian format. That is, the more significant bytes of any multi-byte quantity are stored at lower addresses in memory than less significant bytes. For example, the value 1025 (2 to the 10th power plus one) would be stored as first byte= 00000100

41、 and second byte=00000001. 1 M Y Y Y R-2 5.2.2 Numeric Values All numeric values are fixed-length unsigned integer quantities, unless otherwise specified. 3C O-3 Y Y Y R-3 5.4.1 Format Identifier The (4 byte) Format Identifier shall consist of three ASCII characters “FAC” followed by a zero byte as

42、a NULL string terminator to identify the record format as the face record format. 1 M Y Y Y R-4 5.4.2 Version Number The (4 byte) Version Number block shall consist of three ASCII numerals followed by a zero byte as a NULL string terminator. The first and second character will represent the major ve

43、rsion number and the third character will represent the minor revision number. The version number of this specification shall be 0x30313000; “010” Version 1 revision 0. 1 M Y Y Y R-5 Table 2 57 Length of Record 232- 1 1 M Y Y Y R-6 5.4.3 Length of Record The (4 byte) Record Length Block shall be the

44、 combined length in bytes for the record. This is the entire length of the record including the Facial Record Header and Facial Record Data. 2 M Y Y Y R-7 Table 2 1 Number of Facial Images 65 535 1 M Y Y Y R-8 5.4.4 Number of Facial Images The (2 byte) Number of Facial Images block shall be the numb

45、er of facial images included in the record. 2 M Y Y Y R-9 5.5 The Facial Information block The (20 byte) Facial Information block is intended to describe discrete properties of the individual discernable from the image, one is included for each facial image included in the record. The structure of t

46、his block is shown in ISO/IEC 19794-5:2005 Figure 2. Zero or more Facial Feature blocks, one Image Information block, and one Image Data block follow this block. 2 M-2 Y Y Y R-10 5.5.1 Facial Record Data Length The (4 byte) Facial Record Data Length field denotes the sum of the lengths of the Facial

47、 Information block, the Feature Point block(s), the Image Information block, and the Image Data block. The minimum value of the Facial Record Data Length is 32 bytes plus the size of the Image Data block (in bytes). 2 M Y Y Y R-11 5.5.2 Number of Feature Points The (2 byte) Number of Feature Points

48、block shall be the number of Feature Point blocks that follow the Facial Information block. The Feature Point block is defined in ISO/IEC 19794-5:2005 Clause 5.6. 2 M Y Y Y R-12 5.5.3 Gender The (1 byte) Gender block shall be specified in accordance with ISO/IEC 19794-5:2005 Table 3. 1 M Y Y Y R-13

49、5.5.4 Eye Colour The (1 byte) Eye Colour field shall represent the colour of irises of the eyes according to ISO/IEC 19794-5:2005 Table 4. If the eyes are different colours, then right eye colour is to be encoded. 1 M Y Y Y R-14 5.5.5 Hair Colour The (1 byte) Hair Colour field shall represent the colour of the hair according to the ISO/IEC 19794-5:2005 Table 5. 1