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GB/T 41814.1-2022Information technology - Biometric calibration, augmentation and fusion data - Part 1: Fusion information format (English PDF)

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

October 14, 2022

Implementation date

May 1, 2023

Scope

GB/T 41814.1-2022 (Information technology - Biometric calibration, augmentation and fusion data - Part 1: Fusion information format) is available as an English-translated PDF.

GB/T 41814.1-2022 is the Chinese standard "Information technology - Biometric calibration, augmentation and fusion data - Part 1: Fusion information format". Its scope clause reads: This document specifies a machine-readable biometric fusion message format.

This document is suitable for describing the statistics of the alignment scores entered during the fusion process. This document does not apply to the following. --- Standardization of the alignment score normalization process; --- Standardization or definition of the fusion process. Its clauses include terms and definitions.

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Document preview — GB/T 41814.1-2022

National Standard of the People's Republic of China

ICS: 35.040
Classification: L 71

Issued by: State Administration for Market Regulation, China National Standardization Administration

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Symbols and Abbreviations
4.1 Symbol
4.2 Abbreviations
5 Compliance
6 Fusion Information Format (FIF)
6.1 Overview
6.2 Byte Order
6.3 Numerical value
6.4 Fusion header data block
7 Common elements
7.1 Overview
7.2 Parameter types
7.3 Parameter source
7.4 Distribution representation
7.5 Number of comparisons
7.6 Pre-normalization flag
8 Records of the first category
8.1 Purpose
8.2 Format
8.3 Use cases (informative)
9 Type II records
9.1 Purpose
9.2 Format
9.3 Use Cases (Informative)
10 The third category of records
10.1 Purpose
10.2 Format
Appendix A (Informative) Document Overview
Appendix B (Informative) Cumulative Distribution Function Example
Appendix C (Informative) Use of Prenormalized Data
Appendix D (informative) Spline function evaluation source code

1 Scope

This document specifies a machine-readable biometric fusion message format.

This document is suitable for describing the statistics of the alignment scores entered during the fusion process.

This document does not apply to the following.

--- Standardization of the alignment score normalization process;

--- Standardization or definition of the fusion process.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 1988-1998 Seven-bit coded character set for information technology information interchange (eqvISO /IEC 646.1991)

GB/T 26237.1-2010 Information Technology Biometric Data Interchange Format Part 1.Framework 1) (ISO /IEC 19794-1.

2006, MOD)

Note. There is no technical difference between the quoted content of GB/T 26237.1-2010 and the quoted content of ISO /IEC 19794-1.2006.

GB/T 28826.1-2012 Information Technology Public Biometrics Exchange Format Framework Part 1.Specification of Data Elements (ISO /IEC 19785-1.2006, MOD)

Note. There is no technical difference between the quoted content of GB/T 28826.1-2012 and the quoted content of ISO /IEC 19785-1.2006.

3 Terms and Definitions

The terms and definitions defined in GB/T 26237.1-2010 and the following apply to this document.

3.1 biometricsample

An analog or digital representation of a biometric characteristic prior to biometric item extraction.

NOTE. A biometric acquisition device is a biometric acquisition subsystem equipped with a single component.

3.2

The probability that a variable takes a value less than or equal to a value.

1) The latest version of ISO /IEC 19794-1 is the revised version in.2011, and the relevant content involved in this document has no technical revision.

2) The latest version of IEEE754 is the revised version in.2019, and the related content involved in this document has no technical revision.

GB/T 42443 | GB/T 40204 | GB/T 38663 | GB/T 41804 | GB/T 41803.1 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 51 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 646.1991 · IEC 19794 · IEC 19785

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