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Two-dimension bar-code type identity authentication method based on finger print

A two-dimensional barcode and identity authentication technology, applied in the field of two-dimensional barcode technology and fingerprint identification processing technology, can solve the problems of single fingerprint information, no error correction and encryption, etc., to achieve strong confidentiality and anti-counterfeiting, prevent identity forgery, information The effect of large capacity

Inactive Publication Date: 2011-03-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

[0004] At present, there have been reports on two-dimensional barcode identity authentication systems or methods based on fingerprint or face feature information, but basically all are single fingerprint information two-dimensional barcode authentication or face information two-dimensional barcode authentication. And does not have error correction and encryption functions

Method used

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  • Two-dimension bar-code type identity authentication method based on finger print
  • Two-dimension bar-code type identity authentication method based on finger print
  • Two-dimension bar-code type identity authentication method based on finger print

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Embodiment Construction

[0041] A two-dimensional barcode identity authentication method based on fingerprints and faces, comprising the following steps:

[0042] Step 1: The extraction of fingerprint features specifically includes the following steps:

[0043] Step 1-1: Enhance the collected fingerprint image to eliminate noise, connect broken ridges and valleys, and increase the contrast of gray values ​​between ridges and valleys.

[0044] Step 1-2: Binarize the fingerprint image enhanced in step 1-1.

[0045] Step 1-3: Thinning the image processed by binarization in step 1-2 using a morphological method.

[0046] Step 1-4: On the fingerprint image after the thinning operation in step 1-3, determine the position of the fingerprint feature point, and calculate the direction of the ridge line. Store the position and ridge direction of the fingerprint feature points as the features of the fingerprint.

[0047] Step 2: Extraction of facial features, specifically including the following steps:

[00...

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Abstract

The invention discloses a two-dimensional bar code type identity authentication method based on fingerprints and a human face, belongs to the technical field of image processing, and relates to fingerprint recognition processing technology, human face recognition technology and two-dimensional bar code technology. The method mainly comprises the following four parts: 1, extraction of fingerprint characteristics; 2, extraction of human face characteristics; 3, generation of two-dimensional bar codes based on the fingerprints and the human face; and 4, recognition and identity authentication based on the two-dimensional bar codes of the fingerprints and the human face. The method combines the fingerprint characteristics and the human face characteristics of an individual to code, to add error correcting codes and to encrypt, and then expresses the characteristics by adopting a two-dimensional bar code mode, so the method has the advantages of large information capacity, low cost, high reliability, strong confidentiality and anti-falsification, and the like. The method can be applied to the fields of industry and commerce, national defense, transportation, finance, health and medicine, post and telecommunications, office automation, and the like.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to fingerprint recognition processing technology, face recognition technology and two-dimensional barcode technology. Background technique [0002] Biometric identification technology is a solution that uses automatic technology to measure biological characteristics or individual behavior characteristics for identity verification, and compares these characteristics or characteristics with template data in the database to complete identity authentication. Due to the continuous advancement of technology, there are great risks in using a single biometric feature to authenticate individuals. For example: although fingerprint identification technology has been successfully applied to various fields of society, there are still fake fingerprints, which poses a great challenge to personal identity authentication. At the same time, with the continuous occurrence of cheating in exams ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K19/06
Inventor 解梅俞成浦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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