1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 6: Iris image data BS ISO/IEC 29109-6:2011National
2、foreword This British Standard is the UK implementation of ISO/IEC 29109-6:2011. The UK participation in its preparation was entrusted to Technical Committee IST/44, Biometrics. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does n
3、ot purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 68466 1 ICS 35.040 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of
4、 the Standards Policy and Strategy Committee on 31 October 2011. Amendments issued since publication Amd. No. Date Text affected BRITISH STANDARD BS ISO/IEC 29109-6:2011 Reference number ISO/IEC 29109-6:2011(E) ISO/IEC 2011INTERNATIONAL STANDARD ISO/IEC 29109-6 First edition 2011-10-01 Information t
5、echnology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 6: Iris image data Technologies de linformation Mthodologie dessai de conformit pour les formats dinterchange de donnes biomtriques dfinis dans lISO/CEI 19794 Partie 6: Donnes dimage diris
6、BS ISO/IEC 29109-6:2011ISO/IEC 29109-6:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2011 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 per
7、mission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2011 All rights
8、 reservedBS ISO/IEC 29109-6:2011ISO/IEC 29109-6:2011(E) ISO/IEC 2011 All rights reserved iiiForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are me
9、mbers 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 o
10、rganizations, 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 given in the ISO
11、/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 approval by at least 7
12、5 % 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 29109-6 was prepared by Joint Technical Co
13、mmittee ISO/IEC JTC 1, Information technology, Subcommittee SC 37, Biometrics. ISO/IEC 29109 consists of the following parts, under the general title Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794: Part 1: Generalized conformanc
14、e 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 Part 8: Finger pattern skeletal data Part 9: Vascular image data Part 10: Hand geometry silhouette data Finger pattern spectral data, s
15、ignature/sign processed dynamic data, voice data, and DNA data will form the subjects of future parts. BS ISO/IEC 29109-6:2011ISO/IEC 29109-6:2011(E) iv ISO/IEC 2011 All rights reservedIntroduction ISO/IEC 19794-6:2005 specifies a data record interchange format for recording, storing, and transmitti
16、ng one or more iris images within a Common Biometric Exchange Formats Framework (CBEFF) data structure. Each image is accompanied by 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
17、ISO/IEC 19794-6:2005 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 standardi
18、zed 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 19794-6:2005 requirements (covering the most critical features), so that the conf
19、ormity results produced by the test suites will reflect the real degree of conformity of the implementations to ISO/IEC 19794-6:2005 data interchange format records. This is the motivation for the development of this conformance testing methodology. This part of ISO/IEC 29109 supports those applicat
20、ions that require use of iris image data according to ISO/IEC 19794-6:2005. It defines a testing methodology to assure conformance of a vendors application or service to the base ISO/IEC 19794-6:2005 specification. Thus, this part of ISO/IEC 29109 is intended to: establish elements of the conformanc
21、e testing methodology framework that are specific to the iris image-based data record requirements of ISO/IEC 19794-6:2005 conformance testing, define requirements and guidelines for specifying conformance test suites and related test methods for measuring conformity of products and services to the
22、iris image data record requirements of ISO/IEC 19794-6:2005, and define testing and reporting 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
23、for ISO/IEC 19794-6:2005 records, and conformance testing programs for ISO/IEC 19794-6:2005 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. BS ISO/IEC 29109-6:201
24、1INTERNATIONAL STANDARD ISO/IEC 29109-6:2011(E) ISO/IEC 2011 All rights reserved 1Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 6: Iris image data 1 Scope This part of ISO/IEC 29109 specifies elements of conformance testin
25、g methodology, test assertions, and test procedures as applicable to ISO/IEC 19794-6:2005. This part of ISO/IEC 29109 establishes test assertions of the structure of the iris image data format as specified in ISO/IEC 19794-6:2005 (Type A Level 1 as defined in ISO/IEC 29109-1:2009), test assertions o
26、f internal consistency by checking the types of values that may be contained within each field (Type A Level 2 as defined in ISO/IEC 29109-1:2009). This part of ISO/IEC 29109 does not establish tests of conformance of CBEFF structures required by ISO/IEC 19794-6:2005, semantic assertions (Type A Lev
27、el 3 as defined in ISO/IEC 29109-1:2009), other characteristics of biometric products or other types of testing of biometric products (e.g. acceptance, performance, robustness, security), tests of conformance of systems that do not produce ISO/IEC 19794-6:2005 records. 2 Conformance Biometric data i
28、nterchange format Conformance Test Suites (CTS) conform to this part of ISO/IEC 29109 if they satisfy all of the normative requirements related to Clause 6 for one of the subformats defined in the base standard. Specifically, they shall use the test methodology specified in Clauses 6, 7 and 8 of ISO
29、/IEC 29109-1:2009, and all Level 1 and Level 2 tests shall use the assertions defined in Table 2 or Table 3 of Clause 6 in this part of ISO/IEC 29109. Implementations of ISO/IEC 19794-6:2005 tested according to the methodology specified shall be able to claim conformance only to those Biometric Data
30、 Record (BDR) requirements specified in ISO/IEC 19794-6:2005 that are tested by the test methods established by this methodology. BS ISO/IEC 29109-6:2011ISO/IEC 29109-6:2011(E) 2 ISO/IEC 2011 All rights reservedImplementations of ISO/IEC 19794-2:2005 do not necessarily need to conform to all possibl
31、e aspects of ISO/IEC 19794-6:2005, but only to those ISO/IEC 19794-6:2005 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 29109-1:2009 and Table 1 of Clause 6 in this part of ISO/IEC 291
32、09. NOTE See that Level 3 and higher are not tested. 3 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includin
33、g any amendments) applies. ISO/IEC 19794-2:2005, Information technology Biometric data interchange formats Part 2: Finger minutiae data ISO/IEC 19794-6:2005, Information technology Biometric data interchange formats Part 6: Iris image data ISO/IEC 29109-1:2009, Information technology Conformance tes
34、ting 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/IEC 29109-1:2009 apply. 5 Symbols and abbreviated terms For the purpo
35、ses of this part of ISO/IEC 29109, the symbols and abbreviated terms given in ISO/IEC 29109-1 apply. 6 Conformance testing methodology 6.1 General The testing methodology specified in Clauses 6, 7 and 8 of ISO/IEC 29109-1:2009 shall apply. The content of the tables below is based on the conformance
36、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 19794-6:2005 are listed in Table 1. The supplier of the IUT can explain which optional components of
37、 the standard are supported and the testing laboratory can note the results of the test. BS ISO/IEC 29109-6:2011ISO/IEC 29109-6:2011(E) ISO/IEC 2011 All rights reserved 3Table 1 Requirements of the Base Standard, ISO/IEC 19794-6:2005. Rectilinear (R) and polar (P) subformats. Req uire men t ID Ref.
38、in base Std. Requirement summary Level Status Subfor mat Applic abiliity R P IUT Supp ort Supp orted range Test resul t R-01 6.5.1 The Iris Record shall begin with the three ASCII characters “IIR” followed by a zero byte as a NULL string terminator 1 M Y Y R-02 6.5.1 Test that Format Identifier is a
39、 big-endian encoded value 1 M Y Y R-03 6.5.1 The version number 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 revision number and the third character will represent the minor revision number. The ver
40、sion number of this specification shall be 0x30313000; “010” Version 1 revision 0. 1 M Y Y R-04 6.5.1 Test that version number is a big-endian encoded value 1 M Y Y R-05 6.5.1 The length in bytes for the entire record shall be recorded here. 1 M Y Y R-06 6.5.1 This count shall match the number of to
41、tal bytes read. 2 M Y Y R-07 6.5.1 This count shall match the sum of the lengths of the records biometric subtypes and images. 2 M Y Y R-08 6.5.1 The capture device type ID shall be recorded in twelve bits. 1 M Y Y R-09 6.5.2 The total number of iris views shall be recorded in bytes 2-3. 1 M Y Y R-1
42、0 6.5.2 The total number of iris views shall match the number of views contained in the record. 2 M Y Y R-11 6.5.1 The record header length in bytes shall be 45. 1 M Y Y R-12 6.5.1 The image property bit-field shall contain a valid value. 1 M Y Y R-13 6.3.2.5, 6.5.1 These two bits shall encode wheth
43、er the images in the record are horizontally flipped. 1 M Y Y R-14 6.3.2.5, 6.5.1 These two bits shall encode whether the images in the record are vertically flipped. 1 M Y Y R-15 6.3.2.5 6.5.1 These two bits shall encode the scan type for the images in this record. 1 M Y N R-16 6.3.2.4 6.5.1 This b
44、it shall encode whether iris occlusions are embedded in the polar images of this record. 1 M N Y R-17 6.3.2.4 6.5.1 This bit shall indicate whether occlusions are marked using the lowest or the highest possible gray value. 1 M N Y R-18 6.3.2.2, 6.3.2.3 6.5.1 This bit shall encode whether the inner a
45、nd outer iris boundaries were extracted and used to create the polar images in this record (segmented polar image). 1 M N Y R-19 6.5.1 This field shall contain the expected iris diameter if specified. 1 M Y N R-20 6.5.1 This field shall encode the image format and compression. 1 M Y Y R-21 6.2.2, 6.
46、2.3, 6.2.4 Start markers shall be present at the beginning of each data blob of the record unless the image format is raw. 2 M Y Y R-22 6.5.1 This field shall specify the width of the images in this record if the image format is raw. 1 M Y Y R-23 6.5.1 This field shall specify the height of the imag
47、es in this record if the image format is raw. 1 M Y Y R-24 6.5.1 This field shall specify the pixel depth in bits per colour channel. 1 M Y Y R-25 6.5.1, 6.3.2.7 This field shall indicate whether the standard polar transformation described in the base standard was used to create the polar images in
48、this record. 1 M N Y R-26 6.5.1 This field shall contain the Device Unique Identifier. 1 M Y Y R-27 6.5.2 This field shall encode the biometric subtype (left, right or undefined) 1 M Y Y R-28 6.5.2 This field shall state the number of images for the biometric subtype. 1 M Y Y BS ISO/IEC 29109-6:2011
49、ISO/IEC 29109-6:2011(E) 4 ISO/IEC 2011 All rights reservedTable 1 (continued) Req uire men t ID Ref. in base Std. Requirement summary Level Status Subfor mat Applic abiliity R P IUT Supp ort Supp orted range Test resul t R-29 6.5.2 The actual number of images found for this biometric subtype shall match the number in the biometric subtype header. 2 M Y Y R-30 6.5.3 This field shall contain the counter of the current image within the biometric subtype. 1 M
