Identification authentication apparatus based on finger biologic characteristics

Abstract

The invention discloses an identification and authentication device based on finger biometric. The device comprises a handle part, a fingerprint collection part, a light source, an image pickup part, a tact switch and a processing part. The processing part is respectively connected with the tact switch, the fingerprint collection part, the light source and the image pickup part. The device is usually in standby state, and a system starts to work when the tact switch is triggered: first, the light source is started to illuminate the position between the knuckle at a proximal interphalangeal joint of a finger and a distal interphalangeal joint of the finger, and the image pick-up part obtains a finger vein image; meanwhile, the fingerprint collection part collects a thumb fingerprint image, then the two images are subject to preprocessing and feature extraction respectively, and matched with the finger vein feature and the fingerprint feature stored in a database; finally, the judgment whether the authentication is successful is obtained by evaluating the similarity thereof. The invention fully utilizes two different biometrics at different cutaneous layers of the finger, can enhance the anti-counterfeiting property, the security and the accuracy of the system.

Description

Technical field [0001] The present invention relates to the field of biometric identification technology, and in particular to the technology of using finger biometrics for identity authentication. Background technique [0002] Human vein recognition is the latest biometric technology. The so-called biometric technology is the close combination of computers and high-tech methods such as optics, acoustics, biosensors, and biostatistics, using the inherent physiological characteristics of the human body (such as fingerprints, facial features, etc.). Image, red film, etc.) and behavioral characteristics (such as handwriting, voice, gait, etc.) for personal identification. Since the biological characteristics of the human body have the uniqueness inherent in the human body that cannot be copied, this biological characteristic key cannot be copied, stolen or forgotten. Using biometric recognition technology, people have developed a variety of human biometric systems such as fingerprin...

AI Technical Summary

Problems solved by technology

These identification systems formed by a single biometric also have their own advantages and disadvantages. For example, fingerprint identification technology is relatively mature, with high recognition rate and accuracy, but the fingerprint identification system requires fingers to be kept clean and smooth when pressing fingerprints. Any dirt or scars on the fingerprint will make identification difficult. In addition, fingerprints are easy to forge, so the anti-counterfeiting is relatively low; for vein identification, because the vein pattern is located under the skin, and near-infrared light is required to irradiate the designated part of the living body Only then can the vein pattern be clearly displayed, so it has high anti-counterfeiting and living body identification functions. In addition, the vein pattern of the human body has a long-term invariance, and the vein pattern of twins will also be different, but the maturity of vein recognition technology and The accuracy rate is lower than that of fingerprint recognition, and the uniqueness of vein patterns has not been proved, etc.

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