Imaging device based on vein pattern and backside pattern of finger and multimode identity authentication method

Abstract

The invention discloses an imaging device based on vein pattern and backside pattern of a finger and a multimode identity authentication method, wherein the imaging device comprises an acquisition support on which a concave finger putting area is arranged; a visible light imaging device which is arranged at one side of the concave finger putting area of the acquisition support and used for acquiring the back picture of the finger; a near infrared imaging device which is arranged at the other side of the concave finger putting area of the acquisition support and opposite to the visible light imaging device, and used for acquiring the vein picture of the finger by the irradiation of a near infrared light supply; and the bar-shaped near infrared light supply which is arranged on the acquisition support and used for irradiating near infrared light to the finger from the side of the finger. The identity authentication method comprises a logon procedure and an authentication procedure, and the adopted biological features thereof comprise the backside pattern and vein pattern of the same finger. The invention also relates to identity authentication equipment comprising the imaging device, which has better anti-counterfeit performance, and can effectively improve the stability and applicability of a biometrics identification system.

Description

technical field [0001] The invention belongs to the technical field of human biological feature recognition, and in particular relates to a device for capturing images of finger veins and backprints of fingers irradiated by a near-infrared light source and an image analysis technology for multi-modal identity authentication. Background technique [0002] The research and product development of human biometric identification technology based on electronic information technology has received high attention and attention. Biometric systems use personal characteristics to identify or verify a user's identity. Existing biometrics technology focuses more on the recognition of a single biological feature-skin surface texture and shape, such as fingerprints, palm prints, and human faces. These textures are vulnerable to damage under special circumstances. Destruction and forgery. These single-feature-based recognition systems perceive or detect information that is "disturbed" or "...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-modal identity authentication device and authentication method based on finger vein pattern and finger back pattern, so as to solve the problem that fingerprints, palm prints, human faces and other textures are easily damaged, destroyed and forged under special circumstances. And the instability problem caused by the easy change of a single biometric feature improves the stability and applicability of the authentication system

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