System and method for recognizing analog fingerprint of twins based on partial structure

A local structure, fingerprint recognition technology, applied in character and pattern recognition, computer parts, instruments, etc., can solve the problems of lower fingerprint recognition rate, limited application scope of automatic fingerprint recognition system, fingerprint misrecognition, etc., to improve the recognition performance , to avoid the decline of recognition rate and improve the effect of recognition ability

Inactive Publication Date: 2008-04-02
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

However, for twin fingerprints with very similar global features, traditional fingerprint identification methods have obvious shortcomings: in the case of consistent global features and similar local features, it

Method used

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  • System and method for recognizing analog fingerprint of twins based on partial structure
  • System and method for recognizing analog fingerprint of twins based on partial structure
  • System and method for recognizing analog fingerprint of twins based on partial structure

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, and have no limiting effect on it.

[0047] As shown in Figure 1, it is a schematic diagram of the twin identity system using the framework of the system of the present invention:

[0048] The twin fingerprint identity management system includes: a system management computer and a fingerprint collector, wherein the management computer includes: a twin fingerprint database and a fingerprint identification system.

[0049] The specific method for realizing the fingerprint identification system of the present invention is as follows: after the present invention utilizes the fingerprint collector to collect the fingerprint image information of the twins to be compared, the fingerprint image information collected is transferred to the tw...

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Abstract

The invention discloses a substructure-based twins similar fingerprint recognition system and a method. The recognition system comprises a preprocessor, a substructure template device, and a detailed point substructure matching device. The method comprises the following steps: preprocessing a collected fingerprint image and obtaining a refined image of the fingerprint; picking up crest line tip ends and forked detailed points P, constructing substructures based on the aggregate of the picked detailed points P, and generating a fingerprint template through assembling the substructures of the fingerprint; comparing the inputted fingerprint substructure template with fingerprint templates in a database, calculating the differentia of relative position and orientation parameters between substructures and judging whether two fingerprints are matched with each other. The invention adopts the detailed point substructures, thereby not only remarkably improving the twins similar fingerprint recognition performance of the automatic fingerprint recognition system, but also solving the problem of reduced recognition rate due to similar global features of two fingerprints and widening the application of the fingerprint recognition system in the special group of twins.

Description

technical field [0001] The invention belongs to the technical field of biological feature identification, in particular to a fingerprint identification method, in particular to a twin similar fingerprint identification method based on local structures. Background technique [0002] With the development of society and the improvement of people's safety awareness, biometric identification technology plays an increasingly important role, and it is also widely used in various fields of society and people's daily life. Although twins account for a small proportion of the population, they have received a high degree of attention, and effective identification of this special group is even more difficult to study. Since twins are individuals with basically the same genes, they have very similar biological characteristics, such as face, body and voice, so it is impossible to distinguish twins correctly by means of face, body or voice recognition. And because twins are almost identic...

Claims

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Application Information

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IPC IPC(8): G06K9/00
Inventor 田捷时鹏谢卫华杨鑫秦承虎
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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