Identification system based on combination of dorsal hand vein and hand shape and method thereof

Abstract

An identification system based on combination of a dorsal hand vein and a hand shape and a method thereof are disclosed. According to a vein imaging characteristic, acquisition modes of two modes: far-infrared thermal imaging and near-infrared imaging are designed. According to an infrared thermal imaging theory, an infrared thermal imager is used to realize far-infrared dorsal hand vein imaging. According to a near infrared imaging theory, a LED array with an 850nm peak wavelength is used to emit infrared light to irradiate back of the hand. A near infrared CCD is used to collect dorsal hand vein images so as to realize the near infrared dorsal hand vein imaging. By using the identification method of the combination of the dorsal hand vein and the hand shape, the acquired image is processed so as to extract a characteristic vector of the dorsal hand vein and the hand shape. The characteristic vector is matched with the stored characteristic vector so as to obtain an identification result. According to the invention, two kinds of biological information on the hand are used and collected once. Through carrying out extraction of two kinds of the biological information and identification on the acquired image, a collected information amount can be increased and an identification rate can be increased too. Compared to single biology identification, the method of the invention is accurate and secure, and has anti-falsification and applicability.

Description

technical field [0001] The invention relates to a recognition system and method combining veins on the back of the hand and a hand shape. The invention relates to a collection and recognition method of human biological characteristics, and belongs to the technical field of biological information acquisition and biological recognition. Background technique [0002] With the development of modern society, people's requirements for information security are getting higher and higher, and traditional security technologies are meeting people's requirements more and more. Users pose a lot of safety hazards. Especially in those occasions with high security requirements, it is even more urgent to improve the original authentication method. [0003] Biometric authentication technology refers to the process of identifying by computer using the inherent physiological or behavioral characteristics of the human body. Commonly used physiological features include face, fingerprint, iris, ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, provide a recognition system and method based on the combination of dorsal hand veins and hand shapes, overcome the problems of single hand shape recognition or single dorsal vein recognition of unstable information, and improve the recognition system. reliability, stability and practicality

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