A finger vein recognition device and its recognition method

Abstract

The invention discloses a finger vein identification device and an identification method thereof, comprising a sealed cavity and a controller, a plurality of near-infrared light-emitting diodes are arranged above the sealed cavity, a vein identification area is arranged on the sealed cavity; A shading plate is provided; an optical filter is arranged below the vein identification area; an induction circuit is arranged on the vein identification area, and the induction circuit is connected with the controller; more than one camera is provided on the sealed cavity; the number of cameras is Three; there is a memory in the controller; the identification method is to number the three finger contour images captured by the three cameras; the second step: measure the width of the three finger contour images respectively and compare them , the picture corresponding to the maximum value is the best image; the feature code of the best image is extracted, and the feature code is stored or compared with the stored information. The present invention reduces the limit requirement of placing fingers horizontally, and improves the usability of vein identification equipment.

Description

technical field [0001] The invention relates to the technical field of identification, in particular to a finger vein identification device and an identification method thereof. Background technique [0002] The background of vein recognition: With the rapid development of information technology and the continuous progress of human society, newer and higher requirements are put forward for information technology. In the era of network informationization, there are more and more applications for identifying people's identities, and the digitalization and invisibility of identities are required. How to accurately identify a person's identity and protect information security is a key issue that must be solved in the information age. question. [0003] There are two main methods used in traditional identity authentication: one is identity authentication based on identity markers (such as keys, certificates, cards, etc.), and the other is based on identity marker knowledge (such...

AI Technical Summary

Problems solved by technology

But both have their own insurmountable defects: markers are easy to be lost or forged, and marker knowledge is easily forgotten or misremembered; more seriously, these traditional identification methods are often unable to distinguish the real owner of markers Imposters who obtain tokens can have the same rights once others acquire these tokens

[0016] Problems existing in finger vein recognition at present: In the actual application process, the user's finger is required to be placed horizontally on the finger groove, but due to personal habits, when the height of the device is different, it is difficult to place the finger horizontally on the finger groove every time In practical applications, it is found that when the finger deviates from the horizontal angle by more than 10°, the vein recognition device cannot recognize correctly, that is, the authentication fails, resulting in a decline in ease of use

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