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GA/T 774-2019: Specifications for fingerprint and palmprint features
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GA/T 774-2019	English	419	Add to Cart	4 days [Need to translate]	Specifications for fingerprint and palmprint features
GA 774.1-2008	English	159	Add to Cart	3 days [Need to translate]	Fingerprint feature specification--Part 1: Fingerprint direction

GA/T 774-2019: Specifications for fingerprint and palmprint features

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Specifications for fingerprint and palmprint features ICS 13.310 A92 Public Safety Industry Standards of the People's Republic of China Replace GA 774.1~774.5-2008, GA 775-2008 Finger palm print feature specification 2019-10-14 released 2019-12-01 implementation Issued by the Ministry of Public Security of the People's Republic of China

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GA 774.1~774.5-2008 "Fingerprint Feature Specification" and GA 775-2008 "Fingerprint Feature Points and Fingerprint Directions" The main technical changes compared with GA 774.1~774.5-2008 and GA 775-2008 are as follows. ---Revised as a recommended standard; ---Added the palmprint feature coordinate system (see Chapter 4); ---Added the palmprint feature point and direction coordinate representation method (see Chapter 5); ---Added palmprint feature quality, feature point classification and labeling methods (see Chapter 11~Chapter 14); ---Added palmprint detail feature point types and labeling methods (see Chapter 15). Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed by the Criminal Information Subcommittee of the National Criminal Technology Standardization Technical Committee (SAC/TC179/SC2) and Focus. This standard was drafted by. Criminal Investigation Bureau of the Ministry of Public Security, Material Evidence Appraisal Center of the Ministry of Public Security, Beijing Railway Public Security Bureau. The main drafters of this standard. Wang Zhiqiang, Wang Hua, Ran Ran, Liu Huan, Han Ke, Wu Hao, Ouyang Yingchun. The previous releases of this standard are as follows. ---GA 774.1-2008; ---GA 774.2-2008; ---GA 774.3-2008; ---GA 774.4-2008; ---GA 774.5-2008; ---GA 775-2008. Finger palm print feature specification

1 Scope

This section specifies the characteristics of finger palm prints and the labeling method of each feature. This section applies to the automatic recognition system for finger and palm prints.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GA/T 773-2019 Fingerprint automatic recognition system terminology GA 787 technical requirements for fingerprint image data conversion GA 789 Palmprint image data conversion technical conditions

3 Terms and definitions

GA/T 773-2019 and the following terms and definitions apply to this document. 3.1 Upper loopline The upper line of the mino line. see picture 1. 3.2 Lowerloopline The lower part of the mino line. see picture 1. 3.3 Jito loopturning The half-circle where the minus line is bent back. see picture 1. 3.4 Minoguchi loopopening The openings of the top and bottom of the skip line. see picture 1. ...