Three-dimensional finger vein recognition system

Abstract

The invention relates to a three-dimensional finger vein recognition system. The system comprises an original data acquisition module, an identification data acquisition module and a picture comparison module; the original data acquisition module comprises an original data collector and a three-dimensional model generation module; the original data collector can form any angle with a collected finger and shoot an image of a finger vein; the three-dimensional model generation module generates a three-dimensional finger vein model according to the image information shot by the original data collector at different angles, wherein the recognition data acquisition module is used for acquiring three-dimensional finger vein models of fingers and transmitting shot image information and the generated three-dimensional finger vein models to the picture comparison module, and the recognition data acquisition module is used for shooting finger vein images of the fingers put into the recognition data acquisition module and transmitting the shot finger vein images to the picture comparison module; and the picture comparison module compares the finger vein picture obtained by the identification data acquisition module with the obtained three-dimensional finger vein model, and judges whether the finger to be identified is the finger which acquires the original data or not.

Description

Technical field [0001] The present invention relates to the field of recognition technology, in particular to a three-dimensional finger vein recognition system. Background technique [0002] Finger vein recognition technology originated from Hitachi’s advanced research project on human brain functional activity management in the field of medical technology. In this study, near infrared rays were used to observe the increase in blood flow. The researchers also found that this technology also It is also suitable for the collection of finger vein images; because the finger vein images of each finger of each person are different, the recognition technology based on the principle of finger vein images may become a reality; compared with other biometric technologies , Finger vein recognition technology has the following three main advantages: 1. Because finger veins are hidden inside the body, there is no risk of imitation or theft, and the skin conditions on the surface of human hand...

AI Technical Summary

Problems solved by technology

[0002] Finger vein recognition technology originated from Hitachi's advanced research project on the management of human brain functional activities in the field of medical technology. In this study, near-infrared rays were used to observe the increase in blood flow. The researchers also found that this technology also It is also applicable to the collection of finger vein images; since the finger vein images of each finger of each person are different, the recognition technology based on the principle of finger vein images may become a reality; compared with other biometric technologies , the finger vein recognition technology has the following three main advantages: 1. Since the finger veins are hidden inside the body, there is no risk of imitation or theft, and the skin condition on the surface of the human hand will not affect the recognition work; 2. Non-invasive 3. Due to the relative stability of the shape of the finger veins and the clarity of the captured images, the pattern data taken by the low-resolution camera can be Carry out small and simple data image processing; in order to achieve better finger vein recognition, a three-dimensional finger vein recognition system has emerged. The three-dimensional finger vein recognition system includes a raw data collection module, a recognition data collection module and a comparison of raw data and recognition data The comparison module, the existing raw data collection module and recognition data collection module all use multiple cameras to take pictures of the finger, and then get the original data picture and the recognition data picture, but there will be certain defects, the original data cannot be constructed completely The three-dimensional model of the finger veins, in the process of recognition data collection, it is easy to cause recognition errors due to different finger placement angles

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