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Finger vein recognition module and recognition system thereof

A recognition system and finger vein technology, applied in character and pattern recognition, fingerprint/palm print acquisition/organization, medical science, etc., can solve the problems of poor recognition effect, large error, low recognition and input accuracy, etc., to achieve Improve the speed of recognition, reduce the difficulty of recognition, and ensure the integrity of the effect

Pending Publication Date: 2022-02-25
黄河科技集团信息产业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing finger vein recognition devices used on computer hosts have a slow input and recognition speed for finger veins, and the accuracy of recognition and input is low, and the error is relatively large, thereby increasing the fault tolerance rate of finger vein recognition. At the same time, most of the finger vein recognition devices are processed by a single chip, and the processing and recognition effect is poor. In order to solve the above technical problems, a finger vein recognition module and its recognition system are proposed.

Method used

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  • Finger vein recognition module and recognition system thereof
  • Finger vein recognition module and recognition system thereof
  • Finger vein recognition module and recognition system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: as Figure 1-7 As shown, a finger vein recognition module and its recognition system proposed by the present invention include a finger vein collection tank 1, which is characterized in that the bottom of the finger vein collection tank 1 is provided with a groove, and the inside of the groove is snapped with a Infrared lens 2, the side of the infrared lens 2 away from the finger vein collection tank 1 is fixedly connected with an optical filter 3 through optical glue, the side of the optical filter 3 away from the infrared lens 2 is fixedly connected with a light-emitting element 4, and the light-emitting element 4 is far away from the filter One side of the light sheet 3 is clamped with a sensing unit 5, and the side of the sensing unit 5 away from the light-emitting element 4 is provided with a circuit integration panel 6, and the groove inside the finger vein collection tank 1 is glued with an image acquisition unit 7 through optical glue. A groove is ...

Embodiment 2

[0031] Embodiment 2: as Figure 1-7 As shown, a groove is provided on the side of the induction unit 5 close to the light-emitting element 4, four backlight plates are welded around the top of the groove, a light guide plate 8 is arranged inside the groove, and a part of the groove is far away from the light guide plate 8. The side is provided with a light sensing unit 9, and the side of the light sensing unit 9 away from the light guide plate 8 is fixedly connected with three light guide tubes 11 that penetrate and extend to the outside of the sensing unit 5, and one end of the light guide tube 11 located outside the sensing unit 5 is fixedly connected There is an imaging panel 10, the bottom of the imaging panel 10 is fixedly connected with a cable, the top left side of the circuit integration panel 6 is provided with two processing chips 14, the top of the circuit integration panel 6 is provided with five sets of capacitors 12, and the circuit integration panel 6 A cable po...

Embodiment 3

[0032] Embodiment 3: as Figure 1-7 As shown, the identification process: after the position of the finger pulp is in contact with the contact surface of the image acquisition unit 7 and placed for a period of time, the infrared lens 2 at the bottom of the finger vein collection tank 1 refracts the pulsation frequency of the finger pulp onto the filter 3, The pulsation frequency of the vein is projected onto the light-emitting element 4 through the filter 3, and the pulsation frequency is transmitted to the inside of the sensing unit 5 through the diffusely reflected light of the light-emitting element 4, and then transmitted to the light sensing unit 9 after being refracted by the light guide plate 8 area of ​​the collecting surface, and transmit the pulsation signal to the inside of the imaging panel 10 through the three light guides 11, and image the pulsation frequency through the imaging panel 10, and the imaging information will be output to one of the circuit integration...

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Abstract

The invention discloses a finger vein recognition module and a recognition system thereof, and relates to the field of finger vein recognition. the invention provides the following scheme for solving the problems of low finger vein recognition speed, high recognition difficulty and the like: the system comprises a finger vein collection tank, a groove is formed in the bottom of the finger vein collection tank, and an infrared lens is clamped in the groove; and the side, away from the finger vein collecting groove, of the infrared lens is fixedly connected with an optical filter through optical glue. The infrared lens at the bottom of the finger vein collecting groove is used for refracting the vein pulsation frequency of the finger pulp to the optical filter, the optical filter projects the vein pulsation frequency to the light-emitting element, and the light-emitting element converts the vein pulsation frequency into light for transmission. According to the technical scheme, the integrity of input and transmission of the vein pulse frequency is guaranteed, meanwhile, the efficiency of optical transmission is higher, and the identification difficulty of the chip is reduced by recording the information of optical transmission into the chip in an imaging mode.

Description

technical field [0001] The invention relates to the field of finger vein recognition, in particular to a finger vein recognition module and a recognition system thereof. Background technique [0002] Finger vein recognition is a kind of vein recognition. Firstly, the personal finger vein distribution map is obtained through the finger vein recognition device, and the characteristic value is extracted from the finger vein distribution map according to a special comparison algorithm. After near-infrared light irradiation, the CCD camera is used to obtain the finger vein distribution map. Image, the digital image of the finger vein is stored in the computer system, and the characteristic value is stored. When the finger vein recognition is used on the computer host, it is judged whether to start the machine by identifying the finger vein information of the user. [0003] However, the existing finger vein recognition devices used on computer hosts have a slow input and recogniti...

Claims

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Application Information

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IPC IPC(8): G06V40/12G06V40/13A61B5/00A61B5/1171
CPCA61B5/1171A61B5/489A61B5/0077
Inventor 郑文青
Owner 黄河科技集团信息产业发展有限公司
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