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Two-finger vein verification device and method

A verification device and finger vein technology, applied in the field of identity recognition, can solve problems such as misidentification, limited characteristics, and affecting the pass rate of finger vein authentication

Pending Publication Date: 2020-10-27
BEIJING ZNI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The finger vein recognition devices used in the market all use single-finger authentication. Although finger veins are more secure than fingerprints and faces, the position and angle of the finger will affect the pass rate of finger vein authentication, resulting in certain problems. denial problem
Moreover, in large-scale applications, the number of finger vein templates is large, and the possibility of similar finger vein templates will be greatly increased. The single-finger characteristics are limited, so it will cause certain misrecognition problems.

Method used

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  • Two-finger vein verification device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Please refer to figure 1 , the present embodiment provides a finger vein verification device, the device comprising:

[0041] Housing 6, light source 3 and image collector 1, the upper surface of housing 6 is provided with double-finger groove; The bottom of two grooves 4 of double-finger groove is all optical filter 5, and the passing frequency of optical filter 5 is the same as that of light source. The optical frequency is matched; the image collector 1 is fixed inside the housing 6, and the image collector 1 is facing the two-finger groove; the light source 3 is arranged on the upper surface of the housing 6, and the light angle of the light source 3 is facing the two-finger groove.

Embodiment 2

[0043] Such as figure 1 and figure 2 As shown, the present embodiment provides a two-finger vein verification device, which includes:

[0044] Housing 6, the upper surface of the housing 6 is provided with two-finger grooves, and the two-finger grooves include two guide grooves 4. The guide grooves 4 have the function of guiding the fingers to be put in correctly, and at the same time, the lower half of the fingers (belly surface) can be hidden. state, avoid direct exposure of near-infrared light to the lower half of the finger. And by limiting the height of the guide groove 4 to the part that just accommodates the pads of the fingers, and opening the top, people with long nails or people with nail covers can naturally place their fingers in prescribed positions.

[0045] The bottoms of the two guide grooves 4 of the double-finger groove are optical filters 5, and the passing frequency of the optical filters 5 matches the optical frequency of the light source. The optical f...

Embodiment 3

[0050]This embodiment provides a double-finger vein verification device. Compared with the double-finger vein verification device provided in Example 2, the image collector is facing the two-finger groove. In the double-finger vein verification device provided by this embodiment, the image acquisition The device 1 includes a camera, and a reflector 7 is set on the folded optical path of the camera and the finger groove. Under the same focal length, by using the reflector 7 to fold the optical path, the image collector takes pictures of the refracted image of the reflector (such as image 3 shown), which reduces the overall thickness of the device.

[0051] In addition, the difference from Embodiment 2 is that in the device of this embodiment, a storage medium is provided in the casing, and the storage medium is electrically connected to the controller; the controller is provided with a USB interface, and the USB interface runs through the side wall of the casing.

[0052] Exce...

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Abstract

The invention provides a finger vein verification device, which comprises a shell, a light source and an image collector. The upper surface of the shell is provided with double finger grooves; opticalfilters are arranged at the bottoms of the two grooves of the double-finger grooves, and the passing frequency of the optical filters is matched with the light frequency of the light source; the image collector is fixedly arranged in the shell and is used for collecting images of the double finger grooves; the light source is arranged on the upper surface of the shell, and the light angle of thelight source is right opposite to the double-finger grooves. The authentication accuracy can be effectively improved, and the false identification rate is reduced. Meanwhile, when the device is used,two adjacent fingers are put in at the same time, so that the fingers can be kept horizontal, the consistency degree of the finger vein authentication template and a registered template is improved, and the problem of verification failure caused by inclined finger placement of the single-finger authentication device can be solved.

Description

technical field [0001] The invention belongs to the technical field of identification, and in particular relates to a finger vein verification device. Background technique [0002] The finger vein recognition devices used in the market all use single-finger authentication. Although finger veins are more secure than fingerprints and faces, the position and angle of the finger will affect the pass rate of finger vein authentication, resulting in certain problems. Denial problem. Moreover, in large-scale applications, the number of finger vein templates is large, and the possibility of similar finger vein templates will be greatly increased. The single finger feature is limited, so it will cause certain misrecognition problems. Contents of the invention [0003] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a double-finger vein verification device and method to solve the above-mentioned technical problems. [0004] The present i...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20G06F21/32
CPCG06F21/32G06V40/10G06V10/147
Inventor 韩烽刘旭华耿亚磊
Owner BEIJING ZNI TECH
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