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Two-dimensional code based on vein characteristics

A two-dimensional code and vein technology, applied in the field of pattern recognition, to achieve the effect of high use value, strong confidentiality, and high reliability

Inactive Publication Date: 2019-07-09
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the security of biometric templates is a key issue because they store and process each user's biometric information, and once the system storage is compromised, sensitive biometric information can be revealed if the biometric templates are not protected

Method used

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  • Two-dimensional code based on vein characteristics
  • Two-dimensional code based on vein characteristics
  • Two-dimensional code based on vein characteristics

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Experimental program
Comparison scheme
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Embodiment Construction

[0022] The present invention is described in more detail below in conjunction with accompanying drawing example

[0023] 1 Finger vein image preprocessing

[0024] First, preprocessing operations such as size normalization, grayscale, and filter enhancement are performed on the read-in finger vein image.

[0025] 1.1 Size normalization: Since the size of the input vein image is slightly different, the original vein image is firstly subjected to size normalization operation, and the normalized image size is 80×150.

[0026] 1.2 Grayscale: Perform grayscale operation on the size-normalized image.

[0027] 1.3 Filter enhancement: Since finger vein images often have different forms of noise after collection, encoding, transmission, etc., and these noises will affect the image quality to varying degrees, therefore, filter enhancement is performed on the normalized image operate.

[0028] 2 Feature extraction of finger vein image

[0029] The invention extracts the binary patter...

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Abstract

The invention provides a two-dimensional code based on vein features. The method comprises the following steps: firstly, carrying out preprocessing operations such as size normalization, graying, filtering enhancement and the like on a read finger vein image; on the basis, adopting an improved local binary pattern based on a circular neighborhood to extract local texture features of the finger vein image, andp erforming feature dimension reduction operation; encrypting the vein feature added with the BCH error correction code by adopting a feature position reset mode; and finally, generating atwo-dimensional code image of the vein feature by using the QR code for the encrypted feature. The vein features and the two-dimensional codes are effectively combined, effective error correction andencryption processing are combined, and the method has the advantages of being high in confidentiality, high in reliability, large in information amount, high in use value and the like. The method can be applied to the fields of asset management, product tracing, electronic payment and the like.

Description

technical field [0001] The invention belongs to the technical field of pattern recognition, and in particular relates to finger vein recognition technology and two-dimensional code technology. Background technique [0002] Vein recognition technology uses the distribution of human subcutaneous veins for identification. In addition to uniqueness, universality and stability, it is not easily affected by the external environment. It has many advantages such as high precision, fast speed, and non-contact. It has become an effective means of identification. In addition, due to the advantages of small size, high precision, and user-friendly operation of the vein image acquisition device, it has been widely used in many occasions. [0003] However, the security of biometric templates is a critical issue because they store and process each user's biometric information, and once the system storage is compromised, sensitive biometric information can be revealed if the biometric templ...

Claims

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Application Information

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IPC IPC(8): G06K19/06G06T5/00
CPCG06K19/06037G06K19/06075G06T2207/10004G06T2207/30101G06T5/70
Inventor 马慧
Owner HEILONGJIANG UNIV