1、 INCITS/ISO/IEC 29109-4-2010 Information technology Conformance testing methodology for biometric data interchange formats defined in ISO/IEC 19794 Part 4: Finger image data Reaffirmed as INCITS/ISO/IEC 29109-4:2010 R2015INCITS/ISO/IEC 29109-4-2010 PDF disclaimer This PDF file may contain embedded t
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5、n Technology Standards) as an American National Standard. Date of ANSI Approval: 9/29/2010 Published by American National Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyright 2010 by Information Technology Industry Council (ITI). All rights reserved. These materials are subje
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7、luding an electronic 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 2010 All rights reserved INCITS/ISO/IEC 29109-4-2010 ITIC
8、 2010 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Conformance .1 3 Normative references2 4 Terms and definitions .2 5 Symbols and abbreviated terms 2 6 Conformance testing methodology.2 6.1 Table of requirements in the base standard.2 6.2 Table of test assertions 7 INC
9、ITS/ISO/IEC 29109-4-2010 iv ITIC 2010 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in
10、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 organizations, governmental and non-
11、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/IEC Directives, Part 2. The main t
12、ask 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 75 % of the national bodies casting
13、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 consists of the following parts, under the general title Information te
14、chnology 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 8: Finger pattern skeletal data Pa
15、rt 9: Vascular image data Part 10: Hand geometry silhouette data The following part is under preparation: Part 7: Signature/sign time series data INCITS/ISO/IEC 29109-4-2010 ITIC 2010 All rights reserved vIntroduction ISO/IEC 19794-4:2005 specifies a data record interchange format for recording, sto
16、ring, and transmitting one or more finger 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 rec
17、ord. The objective of ISO/IEC 19794-4:2005 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
18、a need for a standardized 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 far as practical, the ISO/IEC 19794 requirements (covering the most critical features), so
19、that the conformity results 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 ap
20、plications that require use of finger image data according to ISO/IEC 19794-4:2005. It defines a testing methodology to ensure conformance of a vendors application or service to ISO/IEC 19794-4:2005. Thus this part of ISO/IEC 29109 is intended to establish elements of the conformance testing metho d
21、ology framework that are specific to the finger and palm image-based data record requirements of ISO/IEC 19794-4:2005 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 fing
22、er image data record requirements of ISO/IEC 19794-4:2005, and define testing and reporting procedures to be follo wed 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 f
23、or ISO/IEC 19794-4:2005 records, and conformance testing programs for ISO/IEC 19794-4:2005 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. The table of test asser
24、tions (Clause 6.2, Table 2) specifies test assertions for the conformance requirements of ISO/IEC 19794-4:2005. AMERICAN NATIONAL STANDARD INCITS/ISO/IEC 29109-4-2010 ITIC 2010 All rights reserved 1Information technology Conformance testing methodology for biometric data interchange formats defined
25、in ISO/IEC 19794 Part 4: Finger image data 1 Scope This part of ISO/IEC 29109 specifies elements of conformance testing methodology, test assertions, and test procedures as applicable to ISO/IEC 19794-4. It establishes test assertions of the structur e of the finger image data format as specified in
26、 ISO/IEC 19794-4:2005 (Type A Level 1 as defined in ISO/IEC 29109-1:2009), test asssertions 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 29109-1:2009), tests of semantic assertions (Type A Level 3 as defined in
27、ISO/IEC 29109-1:2009). It does not establish tests of conformance of CBEFF stru ctures required by ISO/IEC 19794-4:2005, tests of other characteristics of biometric products or other types of testing of biometric products (e.g. acceptance, performance, robustness, security), tests of conformance of
28、systems that do not produce ISO/IEC 19794-4:2005 records. 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 Clau
29、ses 6, 7 and 8 of ISO/IEC 29109-1:2009, and all Level 1 and Level 2 tests shall use the assertions defined in Table 2 of this part of ISO/IEC 29109. Implementations of ISO/IEC19794-4:2005 tested according to the methodology specified shall be able to claim conformance only to those biometric data re
30、cord (BDB) requirements specified in ISO/IEC 19794-4:2005 that are tested by the test methods established by this methodology. Implementations of ISO/IEC 19794-4:2005 do not necessarily need to conform to all possible aspects of ISO/IEC 19794-4:2005, but only to those ISO/IEC 19794-4:2005 requiremen
31、ts that are claimed to be supported by the implementation in an implementation conformance statement (ICS), filled out in accordance with Clause 8 of ISO/IEC 29109-1:2009 and Table 1 of this part of ISO/IEC 29109. INCITS/ISO/IEC 29109-4-2010 2 ITIC 2010 All rights reserved3 Normative references The
32、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 (including any amendments) applies. ISO/IEC 19794-4:2005, Information technology Biometri
33、c data interchange formats Part 4: Finger image 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 docum
34、ent, the terms and definitions given in ISO/IEC 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 The testing methodology specified in Clauses 6, 7 and 8 of ISO/IEC 291
35、09-1:2009 shall apply. The content of the tables below is based on the conformance testing methodology outlined in ISO/IEC 29109-1:2009 and shall only be used in the context of that testing methodology. 6.1 Table of requirements in the base standard The normative requirements of ISO/IEC 19794-4:2005
36、 are listed in Table 1. The supplier of the IUT can explain which optional components of the standard are supported and the testing laboratory can note the results of the test. Table 1 Requirements of the base standard (ISO/IEC 19794-4:2005) Require-ment identifier Reference in base standard Require
37、ment summary Level StatusIUT support Supported range Test result R-1 4.15 Information contained in a transaction shall be applicable to a single subject. 3C O-1 N/A N/A R-2 6.1 Each item of information, field, or logical record shall contain one or more bytes of data. 3C O-1 N/A N/A R-3 6.1 The orde
38、r for transmission shall also be the most significant byte first and least significant byte last. 3C O-1 N/A N/A R-4 6.1 Within a byte, the order of transmission shall be the most significant bit first and the least significant bit last. 3C O-1 N/A N/A R-5 6.2 Each image as presented in accordance w
39、ith this format standard shall appear to have been captured in an upright position and approximately centered horizontally in the field of view. 3C O-1 N/A N/A INCITS/ISO/IEC 29109-4-2010 ITIC 2010 All rights reserved 3Table 1 (continued) Require-ment identifier Reference in base standard Requiremen
40、t summary Level StatusIUT support Supported range Test result R-6 6.2 The recorded image data shall appear to be the result of a scanning of a conventional inked impression of a fingerprint. 3C O-1 N/A N/A R-7 6.2 The scanning sequence (and recorded data) shall appear to have been from left-to-right
41、, progressing from top-to-bottom of the fingerprint or palm print. 3C O-1 N/A N/A R-8 6.2 For the purpose of describing the position of each pixel within an image to be exchanged, a pair of reference axes shall be used. 3C O-1 N/A N/A R-9 6.2 The origin of the axes, pixel location (0,0), shall be lo
42、cated at the upper left-hand corner of each image. 3C O-1 N/A N/A R-10 6.2 The x-coordinate (horizontal) position shall increase positively from the origin to the right side of the image. 3C O-1 N/A N/A R-11 6.2 The y-coordinate (vertical) position shall increase positively from the origin to the bo
43、ttom of the image. 3C O-1 N/A N/A R-12 7.2 For all quality levels, the finger image shall be represented using square pixels, in which the horizontal and vertical dimensions of the pixels are equal. 3C O-1 N/A N/A R-13 7.3 The grayscale precision of the pixel data shall be specified in terms of the
44、pixel depth or the number of bits used to represent the grayscale value of a pixel. 3C O-1 N/A N/A R-14 7.3 For grayscale data, the minimum value that can be assigned to a “black” pixel shall be zero. 3C O-1 N/A N/A R-15 7.3 The maximum value that can be assigned to a “white” pixel shall be the gray
45、scale value with all of its bits of precision set to “1”. 3C O-1 N/A N/A R-16 7.4 The image data portion of a record for an uncompressed grayscale image shall contain a set of raw pixel information. 3C O-1 N/A N/A R-17 7.4 Using a pixel depth of 8 bits (256 grayscale levels) each pixel shall be cont
46、ained in a single byte. 2 M R-18 7.4 Increased precision for pixel values greater than 255 shall use two unsigned bytes to hold up to sixteen-bit pixels with values in the range of 0-65635. 3C O-1 N/A N/A R-19 7.4, Tables 2 and 3 The encoding of a compressed grayscale image shall be the output of th
47、e appropriate grayscale compression algorithm specified. 2 M N/A INCITS/ISO/IEC 29109-4-2010 4 ITIC 2010 All rights reservedTable 1 (continued) Require-ment identifier Reference in base standard Requirement summary Level StatusIUT support Supported range Test result R-20 7.4 Upon decompression the g
48、rayscale value for each pixel shall be represented in the same manner as pixels in an uncompressed image. 3C O-1 N/A N/A R-21 7.5 The image grayscale shall be encoded using the agreed precision necessary to meet the dynamic range requirement for a specific application. 3C O-1 N/A N/A R-22 7.6 Graysc
49、ale fingerprint image areas to be captured shall be acquired by an image capture device operating at a specific scanning resolution. 3C O-1 N/A N/A R-23 8.1 Each record shall pertain to a single subject. 3C O-1 N/A N/A R-24 8.1 Each record shall contain an image record (consisting of one or more views) for each of one or more fingers, multiple fingers (single image records), or palms. 3C O-1 N/A N/A
