Vein feature extraction method and method for carrying out identity authentication by utilizing double finger veins and finger-shape features

Abstract

The invention relates to a method for carrying out identity authentication by utilizing double finger veins and finger-shape features, comprising the following steps of: firstly registering and storing vein features and information of finger-shape features of double fingers of a user; collecting, extracting and authenticating the vine features and the information of the finger-shape features of double fingers of a customer; respectively comparing the extracted double finger vein features and finger-shape features with the stored double finger vein features and information of the finger-shape features, and carrying out decision-level fusion; collecting images of hand shapes and finger veins, establishing a rectangular coordinate system by taking an intersection point between the double fingers as an original point and determining a region of interest (ROI); and finally respectively extracting the vein features and the finger-shape features, comparing with the stored double finger veins and information of the finger-shape features, and carrying out decision-level fusion. In the invention, two kinds of information of veins and finger shapes can be respectively extracted from one image and the two kinds of information are fused; and by introducing the coordinate system with the intersection point of the two fingers as the original point, the method provided by the invention not only improves the positioning precision, but also is convenient for users to use and effectively improves the system performance through double feature fusion.

Description

technical field [0001] The invention relates to a vein feature extraction method and an authentication method using biological features, in particular to a vein feature extraction method and a method for identity authentication using finger vein and hand shape features. Background technique [0002] In today's society, people have higher and higher requirements for information security. How to accurately identify a person's identity and protect information security has become a key social problem that must be solved. Due to the fact that traditional identity authentication is extremely easy to be forged and lost, it is increasingly difficult to meet the needs of society. The most convenient and safe solution at present is undoubtedly biometric identification technology. Biometrics is a scientific anti-counterfeiting verification scheme for identity authentication based on physical characteristics such as human appearance and voice. Biometric identification is to identify an...

AI Technical Summary

Problems solved by technology

[0006] Another problem solved by the present invention is to provide a method for identity authentication using double-finger veins and finger-shaped features. This method not only adds the advantages of vein features, but also reduces the rejection rate of single vein features. During the vein feature authentication process, the finger is not fixed well, and repeated authentication is required

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