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Living body recognizing device and method based on three-dimensional characteristics of finger venas

A finger vein and recognition device technology, applied in the field of living body recognition devices based on the three-dimensional characteristics of finger veins, can solve the problems of unfavorable detection, weak pulse wave signal, long detection time, etc., and achieve the effect of increasing accuracy and reliability

Active Publication Date: 2015-07-15
SHANDONG UNIV
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Problems solved by technology

The disadvantage is that the signal of the pulse wave itself is weak, which is not conducive to detection, the detection time is long, and the finger vein recognition device can be fooled by attaching a fake finger vein pattern to the finger

Method used

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  • Living body recognizing device and method based on three-dimensional characteristics of finger venas

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Embodiment Construction

[0048] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0049] Such as Figure 1-Figure 3 As shown, a living body recognition device based on the three-dimensional characteristics of finger veins includes: a housing 1, which is provided with a finger insertion hole 8; the inside of the housing 1 includes a light source module 9, which includes several near Infrared radiation source 5, and the frosted glass scattering plate that covers its surface; Described near-infrared radiation source 5 is arranged on the housing 1 above the finger that stretches into the housing; A control circuit module 11, which includes a camera 3 and an automatic light source control circuit 6, the camera 3 is covered with an infrared filter 4; and a reflector module 2, which includes a first reflector and a second reflector, the first A reflective plate and a second reflective plate are arranged on two sides of the camera and the control...

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Abstract

The invention discloses a living body recognizing device and method based on three-dimensional characteristics of finger venas. The device comprises a casing, wherein a finger extending-in hole is formed in the casing; a light source module, a camera and control circuit module and a reflecting board module are arranged in the casing, wherein the light source module comprises a plurality of near infrared irradiation sources and frosted glass scattering boards covering the surfaces of the near infrared irradiation sources, and the near infrared irradiation sources are arranged on the casing above a finger extending into the casing; the camera and control circuit module is arranged on the surface opposite to the infrared irradiation sources, and comprises a camera and an automatic light source control circuit, and an infrared filtering sheet covers the camera; the reflecting board module comprises a first reflecting board and a second reflecting board. The recognizing method based on the device comprises the step of comparing three finger images with the information of finger venas of an authenticated person registering in advance at the same time, so that the accuracy is improved, the check of whether an authenticated target is a living body or not can be realized in a short time, and the reliability of vena recognition of fingers is improved.

Description

technical field [0001] The invention belongs to the field of biological feature identification, and in particular relates to a living body identification device and method based on three-dimensional features of finger veins. Background technique [0002] At present, biometric identification technology has been widely used in all aspects of daily life. As an important identification feature, finger veins have the advantages of uniqueness, stability, non-contact, and anti-counterfeiting. However, with the increasingly widespread application of biometric technology, finger vein recognition systems are also facing threats and attacks from various artificial forgery technologies, and there are risks such as stolen login information forged vein images. [0003] Document 1 (CN 103617419A) discloses a finger vein recognition device with a living finger detection function, which is composed of a built-in infrared pulse wave detection sensor to detect pulse waves to determine whether ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 刘治刘奕朱雪梅肖晓燕宿方琪唐波孙育霖
Owner SHANDONG UNIV
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