Fingerprint verification system

A fingerprint verification and fingerprint technology, applied in the field of biometrics, can solve the problems of automatic adjustment, affecting the security of identity verification and work efficiency, and achieve the effects of improving efficiency, avoiding limitations, and reducing false recognition rate and rejection rate

Active Publication Date: 2013-05-08
SHENZHEN ARATEK BIOMETRICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The comparison threshold of the existing fingerprint verification system is preset as a fixed value, which cannot be adjusted automatically according to the actual usage, which affects the security and work efficiency of identity verification

Method used

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Embodiment Construction

[0019] The present invention provides a fingerprint verification system. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0020] figure 1 It is a structural diagram of a fingerprint verification system according to the first embodiment of the present invention. The fingerprint verification system includes a fingerprint collection device 20, a fingerprint feature extraction device 30, a storage unit 40, a fingerprint comparison device 50, a control device 60, a power supply 70 and a comparison device. For threshold adjustment device 80.

[0021] The fingerprint collection device 20 is used to collect the fingerprint image of the user, which includes a fingerprint sensor, and the fingerprint sensor is one of a sliding semiconductor fingerprint sensor, a CMOS fingerprint sensor and a CCD fingerprint se...

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Abstract

The invention relates to a fingerprint verification system which comprises a fingerprint collection device, a fingerprint feature extraction device, a storage unit, a fingerprint comparison device, a control device and a power source, wherein the storage unit is used for storing a fingerprint template, the fingerprint comparison device is used for comparing a fingerprint feature extracted by the fingerprint feature extraction device and a fingerprint template stored in the storage unit, and the control device is used for controlling the fingerprint comparison device and outputting a fingerprint verification result. The fingerprint verification system further comprises a comparison threshold value adjustment device which is connected with the fingerprint comparison device and the control device and is used for adjusting a comparison threshold value of a fingerprint. According to the fingerprint verification system, due to the fact that the comparison threshold value of the fingerprint is adjusted by the comparison threshold value adjustment device, limitation of a changeless comparison threshold value in fingerprint verification is avoided, a false accept rate and a false reject rate are effectively reduced, and safety of identity authentication and efficiency of identity recognition are improved.

Description

technical field [0001] The invention relates to the field of biological identification, in particular to a fingerprint verification system. Background technique [0002] In the existing fingerprint verification system, fingerprint features are collected by a fingerprint device and compared with a fingerprint template. If the similarity between the two reaches a predetermined fixed threshold, the fingerprint identity verification is passed, otherwise the fingerprint identity verification is not passed. In order to ensure the reliability and security of identity verification, usually the predetermined fixed threshold is set higher. Due to factors such as air temperature and humidity, sensor aging, and dry or wet fingers, the quality of fingerprint images collected by fingerprint sensors is often poor. If the predetermined fixed threshold is set too high, it will lead to fingerprint verification failure and high rejection rate, which will affect the efficiency of fingerprint c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/54
Inventor 邵宇李刚汪长洪苏杰
Owner SHENZHEN ARATEK BIOMETRICS TECH CO LTD
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