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
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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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