GB/T 45284.6-2025Information technology - Extensible biometric data interchange formats - Part 6: Iris image data (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

This document is Part 6 of GB/T 45284 "Information technology - Extensible biometric identification data exchange format".

GB/T 45284 has published the following parts.

--- Part 1: Framework;

--- Part 4: Fingerprint image data;

--- Part 5: Face image data;

--- Part 6: Iris image data;

--- Part 9: Vascular image data;

--- Part 16: Full body image data;

--- Part 17: Gait image sequence data.

This document is equivalent to ISO/IEC 39794-6:2021 "Information technology - Extensible biometric data exchange format Part 6 Part. Iris Image Data.

Introduction

GB/T 45284 establishes an extensible biometric data exchange format and defines the basic rules, Common data elements and data structures, basic test methods; for different biometric recognition modalities, scalable the data element definitions, data formats, test methods, and application guidelines for typical application scenarios of the data exchange format are provided.

GB/T 45284 "Information Technology Extensible Biometric Identification Data Exchange Format" is intended to consist of seventeen parts.

--- Part 1: Framework. The purpose is to establish rules, guidelines, common data elements, Common data structures and compliance testing methods.

--- Part 2: Fingerprint detail point data. The purpose is to establish an extensible fingerprint detail point data record exchange format and Compliance test methods.

--- Part 3: Fingerprint data. The purpose is to establish an extensible fingerprint data record exchange format and conform to Sex testing method.

--- Part 4: Fingerprint image data. The purpose is to establish an extensible fingerprint image data record exchange format and conform to Sex testing method.

--- Part 5: Face image data. The purpose is to establish an extensible face image data record exchange format and conformity Sex testing method.

--- Part 6: Iris image data. The purpose is to establish an extensible iris image data record exchange format and conformity Sex testing method.

--- Part 7: Signature/signature time series data. The purpose is to establish an extensible signature/signature data record Interchange formats and conformance testing methods.

--- Part 8: Fingerprint skeleton data. The purpose is to establish an extensible fingerprint skeleton data record exchange format and conform to Sex testing method.

--- Part 9: Vascular image data. The purpose is to establish an extensible data record exchange format for vascular image data and Compliance test methods.

--- Part 10: Hand shape profile data. The purpose is to establish an extensible data record exchange format for hand shape profile data and Compliance test methods.

--- Part 11: Processed signature/signature dynamic data. The purpose is to establish an extensible processed signature/signature dynamic Data record exchange format and compliance test method for dynamic data.

--- Part 12: Facial feature data. The purpose is to establish an extensible facial feature data record exchange format and conformity Sex testing method.

--- Part 13: Sound data. The purpose is to establish an extensible sound data record exchange format and conformity test method.

--- Part 14: DNA data. The purpose is to establish an extensible DNA data record exchange format and conformance test Try method.

--- Part 15: Palmprint image data. The purpose is to establish an extensible data record exchange format for human palmprint images and Compliance test methods.

--- Part 16: Whole body image data. The purpose is to establish an extensible whole body image data record exchange format and conformity Test method.

--- Part 17: Gait image sequence data. The purpose is to establish an extensible data record exchange format for gait image sequences.

format and compliance test methods.

As one of the biometric images, iris images have been used to verify personal identity.

In the application of authentication, an exchangeable digital iris image data format is needed to achieve interoperability, which is very necessary.

In order to standardize this interoperability, the International Standards Organization ISO/IEC compiled and published the first generation of iris maps from 2005 to 2007.

ISO/IEC 19794-6:2006 Biometric Data Exchange Format Part 6: Iris Image Data According to the "my country Iris Image Data Exchange Report", the standard has been transformed into the recommended national standard GB/T 26237.6-2014.In.2011, the second generation of iris image data was exchanged.

The exchange format was published in the second edition of ISO/IEC 19794.The second generation iris image data exchange format ISO/IEC 19794-6:2011 New useful data elements, such as those related to the quality of iris samples, have been added to all parts of the ISO/IEC 19794 series.

The header data structure was harmonized in, and XML encoding was added in addition to binary encoding.

Based on the limitations of the overall design of the ISO/IEC 19794 series of standards, ISO/IEC 19794-6:2006 is different from ISO/IEC 19794-6.

2011 is not compatible, which brings difficulties to the expansion of products applicable to ISO/IEC 19794-6:2006 to support ISO/IEC 19794-6:2011.

The obstacle.

Taking into account the future need for additional data elements and to avoid future compatibility issues, ISO/IEC JTC1/SC37 developed as the third generation biometric data exchange format, ISO/IEC 39794 series defines an extensible biometric data conversion format that can the standard includes future extensions in a defined manner. Part 6 is Extensible Iris Image Data, ISO/IEC 39794-6 Information technology—Extensible biometric data exchange format—Part 6: Iris image data.

This document aims to provide a general and extensible iris image data format for iris recognition application systems that need to exchange iris image data.

This document contains the detailed definition of the attribute data elements of the iris image record, the tagged binary and XML-encoded extensible formats of the record.

format for storing and transmitting iris images and certain attribute data elements, as well as consistency standards.

Appendix A specifies the formal structure description that the tagged binary-encoded and XML-encoded iris image extensible records should conform to, respectively.

ASN.1 schema and XML schema. Appendix B provides an example of encoding an iris image extensible record. Appendix C specifies the Appendix D contains the conformance test methods, test assertions and test procedures for the iris image extensible record conformance test.

Suggestions for iris image acquisition are given.

Information Technology Scalable Biometric Data Interchange format part 6.iris image data

1 Scope

This document specifies.

---Used to represent iris image data universal and extensible data exchange format. one is based on the extensible specification in ASN.1 the binary data format and the text data format based on XML schema definition can store the same information;

---Example of iris image data record content;

---Minimum requirements, recommended methods and best practices for specific applications in data collection;

--- Conformity test assertions and test procedures applicable to this document.

Iris image information is stored in the following format.

--- Gray value array compressed according to ISO/IEC 15948 or ISO/IEC 15444-1 protocol;

--- Gray value array compressed according to ISO/IEC 15948 or ISO/IEC 15444-1 protocol, cut around the iris the cropped image shows the region of interest with a non-iris region mask.

This document also specifies the elements of the conformance test method, test assertions and test procedures.

--- Test assertions related to the structure of the iris image data format, as described in Chapters 6 to 9;

---Complete test assertions related to internal conformance by checking the type of values that may be contained in each field;

---Semantic test assertions.

The compliance test methods specified in this document do not include.

--- Other characteristic tests of biometric identification products or other types of tests of biometric identification products (such as usability, performance, robustness, etc.) stickiness, safety);

--- Conformity testing of systems that do not generate the data records required by this document.

This document does not include.

--- Requirements for camera optical specifications;

--- Requirements for photometric characteristics of iris images;

---Requirements for registration procedures, workflow and use of iris devices.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.

cabulary-Part 37: Biometrics) Note. GB/T 5271.37-2021 Information technology vocabulary Part 37: Biometric identification (ISO/IEC 2382-37:2017, MOD) ISO/IEC 8824-1 Information technology Abstract Syntax Notation One (ASN.1) Part 1: Basic Notation Specification Note. GB/T 16262.1-2006 Information technology Abstract syntax notation 1 (ASN.1) Part 1: Basic notation specification (ISO/IEC 8824-1.