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Reflective finger vein feature acquisition device and personal identity authentication method thereof

A finger vein feature and collection device technology, which is applied in the field of human biometric identification, can solve problems such as complex structures, meet security requirements, prevent identity counterfeiting, and improve security and reliability.

Inactive Publication Date: 2011-07-06
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But described portable dorsal hand vein collection instrument is to collect the dorsal hand vein, and the structure is complex

Method used

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  • Reflective finger vein feature acquisition device and personal identity authentication method thereof
  • Reflective finger vein feature acquisition device and personal identity authentication method thereof
  • Reflective finger vein feature acquisition device and personal identity authentication method thereof

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Embodiment Construction

[0032] The present invention will be further described in detail below with reference to the drawings and specific embodiments, but it is not intended to limit the present invention.

[0033] See figure 1 As shown, a reflective finger vein feature acquisition device includes a combined optical unit, a finger sensing unit 2 and an image acquisition unit, wherein the combined optical unit, finger sensing unit 2 and image acquisition unit are integrated into one device, such as figure 2 Shown. The combined optical unit includes a near-infrared side light source 1, a color filter 3, a polygon mirror 4 and a reflective surface 5. The near-infrared side light source 1 is arranged on two sides of the finger sensing unit 2, the color filter 3 is arranged below the finger sensing unit 2, a polygon mirror 4 is arranged below the color filter 3, and the near-infrared side light source 1 is arranged on the finger sensing unit. On both sides, the near-infrared side light source illuminates t...

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Abstract

The invention aims to provide a device for acquiring the finger vein features in a reflective manner, and a method for authenticating the personal identity by use of the device. The device comprises a combined optical unit, a finger induction unit and an image acquisition unit, wherein the combined optical unit can change the optical path to reduce the linear distance for image transmission; the image acquisition unit controls the output of an IR light source, and includes a CMOS sensor for picking up the images of vein texture features; and the images are acquired by a camera and then transmitted to a host computer for conducting the recognition algorithm through a USB port. The reflective finger vein feature acquisition device can recognize the living body from the nonliving body, has no residues, is difficult to be imitated and has little possibility to damage the features. Therefore, the method becomes the novel biological feature and identity authentication technique after the fingerprint recognition, is the advanced technique in the biological feature identification field, and is more suitable for the personal identity authentication as the living biological code.

Description

Technical field [0001] The invention belongs to the technical field of human biometric identification, and relates to a finger vein feature collection device and a method for performing personal identity authentication using the finger vein collection device. Background technique [0002] Fingerprint, face, iris, retina, voiceprint and other biometric identification technologies have been developed for many years. Fingerprint identification technology is widely used due to its convenient use and high recognition rate. After practical discovery, the current live fingerprint collection and identification technology , There are still obvious shortcomings for identity authentication. Whether it is a semiconductor sensor or an optical sensor fingerprint collection device, it is faced with the adaptability defects such as the inability to collect and recognize the artificial finger, difficult fingerprints, damaged lines and residual traces. There is a rejection rate of 1%, and 3-10% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/00
Inventor 侯鸿川李雪松任福云尹德森何兰祁卫炜
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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