Multiple registered fingerprint fusing method

A fusion method, multi-registration technology, applied in the field of fingerprint recognition system, information fusion, can solve problems such as difficult to achieve performance

Inactive Publication Date: 2005-03-02
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Practical applications show that it is difficult to achieve the actual required performance simply by using one registered fingerprint, one feature, and one classifier

Method used

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  • Multiple registered fingerprint fusing method

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Embodiment Construction

[0126] The present invention can be realized on a common PC, and has no requirement on the operating system.

[0127] The content of the invention includes a minutiae-based fingerprint identification algorithm and a multi-registration fingerprint fusion strategy. They are described as follows:

[0128] The minutiae-based fingerprint recognition algorithm includes: effective area extraction, direction field estimation, image enhancement and binarization, minutiae extraction, and minutiae comparison. Fusion strategies include feature-level fusion, decision-level fusion, and re-fusion of fused features and decisions. Among them, each step of effective area extraction, direction field estimation, image enhancement and binarization, minutiae point extraction and minutiae point comparison can be carried out by any traditional method, and the method of decision-level fusion can also use the traditional method conduct. The following steps are introduced one by one:

[0129] Effect...

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Abstract

The invention is a multi-register fingerprint identification method belonging to fingerprint identification technology. its character lies in: it carries detail comparison to M fingerprints of the same finger in the databank, works out its similarity, and a excellent parameter is worked out according to the similarity, selects the maximal one as basic fingerprint, and it is copied onto the template; the other fingerprint is compared with its detail points, amends the confidence value of detail point according to the times of success comparisons, and a integral template is acquired; then carries tactics integration and finally integration matching with traditional detail joint character, acquires the similarity between the registered fingerprint and applied fingerprint. Compared with pure detail joint method, it reduces the error refusing rate.

Description

Technical field: [0001] The invention relates to the field of fingerprint identification, in particular to the technology of information fusion in a fingerprint identification system containing multiple registered fingerprints. Background technique: [0002] With the development and progress of society, the practical requirements for fast, effective and automatic personal identification are increasingly urgent. Security of important departments, border control, immigration inspection, entry and exit of confidential or valuables storage places, prevention of credit card fraud, network security, etc. Reliable personal identification is required. In the basis of identity verification, keys and certificates may be lost, stolen or copied, and passwords are easily forgotten, confused or peeped, and biometrics (including fingerprints, faces, hand shapes, handwritten signatures, irises, etc.) Inherent attributes of human beings, they do not appear in the above situation, so they be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 周杰杨春宇
Owner TSINGHUA UNIV
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