Finger vein recognition method and system fusing basic features and deformation features

A basic feature, finger vein technology, applied in biometric recognition, character and pattern recognition, instruments, etc., can solve the problem of insufficient feature representation ability, achieve the effect of improving accuracy and robustness, and ensuring efficiency

Active Publication Date: 2019-07-12
SHANDONG UNIV OF FINANCE & ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method overcomes the problem of insufficient feature representation ability when using a single feature, improves the accuracy and robustness of finger vein recognition, and ensures the efficiency of recognition

Method used

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  • Finger vein recognition method and system fusing basic features and deformation features
  • Finger vein recognition method and system fusing basic features and deformation features
  • Finger vein recognition method and system fusing basic features and deformation features

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Among the technical solutions disclosed in one or more embodiments, such as figure 1 As shown, a finger vein recognition method that combines basic features and deformation features includes the following steps:

[0052] Step 1: Obtain the finger vein image, preprocess the finger vein image, and obtain the preprocessed image; the finger vein image refers to the finger vein image to be recognized and the standard finger vein image. The standard finger vein image can be pre-processed The registered finger vein image can be directly retrieved from the storage device of the system.

[0053] In the step 1, preprocessing the collected finger vein image includes the following steps:

[0054] 11) Extract the region of interest of the finger image;

[0055] 12) Perform image enhancement processing on the region of interest to obtain a preprocessed image;

[0056] Among them, the method of extracting the region of interest of the finger image can be: using the Sobel operator The edge of ...

Embodiment 2

[0094] This embodiment provides a finger vein recognition system integrating basic features and deformation features, including:

[0095] Image acquisition module: collect the finger vein image of the user to be identified;

[0096] Preprocessing module: preprocess the finger vein image to obtain the preprocessed image;

[0097] Basic feature extraction module: extract the basic features of the preprocessed image;

[0098] Matching score calculation module: Calculate matching scores based on basic features;

[0099] Objective function building module: build matching objective function;

[0100] Objective function value and deformation matrix acquisition module: use the basic feature matrix of the image to optimize matching to obtain the objective function value and deformation matrix;

[0101] Deformation feature extraction module: extract deformation features according to the obtained deformation matrix;

[0102] Identity recognition module: The basic feature matching score, the objective...

Embodiment 3

[0104] This embodiment also provides an electronic device, including a memory and a processor, and computer instructions stored in the memory and running on the processor. When the computer instructions are executed by the processor, they complete the steps of the method in the first embodiment. step.

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Abstract

The invention provides a finger vein recognition method and system fusing basic features and deformation features. The recognition method mainly comprises the steps of image preprocessing, basic feature extraction, objective function construction and optimization and matching, deformation information extraction and basic feature and deformation feature fusion. According to the method, in the recognition process, deformation information is utilized, basic characteristics, matching scores and other information needed when the deformation characteristics are obtained are considered, and a fingervein recognition framework integrating the basic characteristics and the deformation characteristics is constructed. According to the method, the problem that when a single feature is used, the feature representation ability is insufficient is solved, the accuracy and robustness of finger vein recognition are improved, and the recognition efficiency is ensured.

Description

Technical field [0001] The present disclosure relates to the technical field related to biometric recognition, and specifically, to a finger vein recognition method and system that integrates basic features and deformation features. Background technique [0002] The statements in this section merely provide background information related to the present disclosure, and do not necessarily constitute prior art. [0003] Among the many biometric recognition technologies, finger vein recognition has received extensive attention from researchers because of its convenience and safety. It uses the vein distribution image in the finger for identity recognition, and compares the obtained finger vein feature information with the pre-registered finger vein feature to confirm the identity of the registrant. Finger veins refer to the veins and blood vessels distributed inside the fingers, which can be imaged by the absorption of near-infrared light by hemoglobin. The finger is a three-dimensio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/10G06F18/253
Inventor 孟宪静袭肖明杨璐耿蕾蕾尹义龙
Owner SHANDONG UNIV OF FINANCE & ECONOMICS
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