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Living body detection device and method

A technology of living body detection and specific method, applied in face recognition to prevent face prosthesis attacks, in the field of identity recognition, it can solve the problems of high price, difficult to integrate face prosthesis, large size, etc. The effect of low image resolution and environmental requirements and fast detection speed

Pending Publication Date: 2022-05-13
北京萤视科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The human eye can produce bright pupil effect or dark pupil effect under specific light, and under the existing technical conditions, the artificial eye that simulates the bright pupil effect and dark pupil effect is expensive, and generally has a large volume, which is difficult to integrate into the human body. face prosthesis

Method used

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  • Living body detection device and method
  • Living body detection device and method

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] In order to achieve the above purpose, the living body detection device disclosed in the first aspect of the present invention adopts the following scheme:

[0042] Such as figure 1 As shown, the living body detection device disclosed in the present invention includes an infrared camera 100 fixed and interconnected in a specific way, a coaxial infrared light source 200 and a side-axis infrared light source 300, and also includes a module control and data processor 400 and other Accessories used to ensure the normal operation of the device.

[0043] The infrared camera 100 is fixed at a certain distance from the living body detection object, and the distance is denoted as . In order to ensure that the face of the live detection object can be collected as a whole, the distance should be greater than a certain minimum ; In order to ensure th...

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PUM

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Abstract

The invention discloses a living body detection device and method for face recognition. The living body detection device comprises an infrared camera, a coaxial infrared light source, a paraxial infrared light source, a module control and data processor and other necessary accessories, wherein the infrared camera, the coaxial infrared light source and the paraxial infrared light source are fixed according to a specific mode. A living body detection technology based on the device comprises the following steps: according to a security level requirement and a termination condition input by an administrator, generating a binary random security code sequence before each detection; according to the value of each digit of the security code sequence, sequentially controlling the on / off of the coaxial infrared light source and the paraxial infrared light source according to the method disclosed by the invention, collecting the face image of the living body detection object, and further analyzing whether the image has a bright pupil effect or a dark pupil effect; according to the random security code sequence and the detection result of the bright pupil effect or the dark pupil effect of the corresponding image, a living body detection result is obtained through analysis, and whether the living body detection object is a real person or a face prosthesis is judged.

Description

technical field [0001] The present invention mainly relates to the field of identity recognition, in particular to the field of preventing face prosthesis attacks in face recognition. Background technique [0002] In the field of identity recognition, face recognition systems and methods are widely used. However, in practical applications, as a feature that is easily obtained by a third party, a fake face prosthesis may be used to carry out non-personal attacks on the face recognition system. Face prostheses include but are not limited to photos, videos of face recognition subjects, or 3D solid models made based on their facial features. [0003] With the commercialization of the face recognition system, some unattended and automated application scenarios have emerged. How to accurately, automatically and efficiently distinguish whether the object detected by the face recognition system is a real face or a face prosthesis has become an urgent task. issues that need resolvi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V40/40
Inventor 王东
Owner 北京萤视科技有限公司
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