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 ve

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

Example Embodiment

[0030] Example 1: Such as Figure 1-7 As shown, the present invention is proposed in the present invention and its identification system, including the intravenous collection tank 1, characterized in that the bottom of the intravenous collection groove 1 is opened with a groove, and the inside card of the groove is connected. Infrared lens 2, the infrared lens 2 is away from the side of the intravenous collection tank 1, and the filter 3 is fixed by optical glue, and the filter 3 is fixedly connected to the side of the infrared lens 2, and the light-emitting element 4 is fixed. One side of the light sheet 3 is connected to the induction unit 5, and the induction unit 5 is provided with a circuit integrated panel 6 on one side of the light-emitting element 4, refers to the inside of the groove in the intravenous collection groove 1, and an image acquisition unit 7 is connected by optical glue. The filter 3 is opened away from the side of the infrared lens 2.

Example Embodiment

[0031] Example 2: Such as Figure 1-7 As shown, the induction unit 5 has a groove near one side of the light-emitting element 4, and four backlights are welded around the top of the groove, and the inside of the groove is provided with a light guide plate 8, and the inside of the groove is remote from the light guide plate 8. The light sensing unit 9 is provided on the side, and the light sensing unit 9 is fixed from one side of the light guide plate 8 to be connected and extended to the outer portion of the outside of the induction unit 5, and the light guide tube 11 is located at one end of the external portion of the induction unit 5. There is an imaging panel 10, and the bottom fixing of the imaging panel 10 is fixedly connected, and two processing chips 14 are provided on the top left side of the circuit integrated panel 6, and the top of the circuit integrated panel 6 is provided with five sets of capacitance 12, and the circuit integrated panel 6. The right end is provided w...

Example Embodiment

[0032] Example 3: Such as Figure 1-7 As shown, the recognition process: After the finger finger belly position is in contact with the contact surface of the image acquisition unit 7, refers to the infrared lens 2 at the bottom of the intravenous collection groove 1 reflects the venous pulsation frequency of the fingertips to the filter 3, The vein beat frequency is transmitted to the light-emitting element 4 by the filter 3, and the pulsating frequency is transmitted to the inside of the induction unit 5 through the diffuse reflection light of the light-emitting element 4, and transmitted to the light sensing unit 9 after refraction through the light guide plate 8. The collecting surface area, and transmits the beat signal to the inside of the imaging panel 10 by three light guiding tubes 11, and the imaging panel 10 is imaged, while the imaging information is output to one of the circuit integrated panel 6 by the cable. The chip 14 is compared and identified.

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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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