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A three-dimensional live face recognition device and method

A face recognition and living technology, applied in the field of human face recognition, can solve problems such as low accuracy and cracking, and achieve the effects of good accuracy, low cost and high spatial resolution

Active Publication Date: 2021-03-30
XI AN ZHISENSOR TECH CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a convenient, effective, and fast three-dimensional human face recognition living body discrimination device and method to solve the problem that ordinary two-dimensional human face images can only be recognized according to the two-dimensional coordinates of feature points. The problem is low and easily cracked by camouflage methods such as photos and videos. During the recognition process, the depth information of the photographed human face can be obtained. Real-time performance of facial recognition

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  • A three-dimensional live face recognition device and method

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] From figure 1 It can be seen that the three-dimensional live face recognition device in this embodiment mainly includes a laser transmitter, a MEMS micro scanning mirror, a camera, a control unit and a computing unit; the laser transmitter, a MEMS micro scanning mirror, a camera and a computing unit are all connected with the control unit connection. In this embodiment, the camera is a monocular camera; the MEMS micro-scanning mirror is a single-axis electrostatically driven MEMS micro-scanning mirror.

[0041] Its working principle is:

[0042] In the working scene, the camera is first turned on by the control unit, and continuous scene images are collected, and frames are selected at a certain frequency and transmitted ...

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Abstract

The invention discloses a three-dimensional living human face recognition device and method, belonging to the field of human face recognition. The device includes: camera, computing unit, control unit, line light source, MEMS scanning mirror, etc. The method of human face recognition and living body detection is to extract and sort the key points of the facial contour through the two-dimensional image algorithm, and the spatial depth information of the key points of the facial contour is obtained by the above-mentioned device combined with the triangular ranging principle, and the extracted contour key points The depth difference and distribution relationship between them are used to detect the living body, and the corresponding relationship between the programmed facial contour key points is used for matching and human face recognition. Solve the problem that ordinary two-dimensional human face images can only be recognized according to the two-dimensional coordinates of feature points, the accuracy is low and it is easy to be cracked by camouflage methods such as photos and videos.

Description

technical field [0001] The invention belongs to the technical field of human face recognition, and in particular relates to a device and method for assisting a monocular camera to perform human face recognition by using coded stripe structured light for three-dimensional human face living body recognition technology. Background technique [0002] Coded stripe structured light, as an effective and reliable active measurement method, has received more and more attention in the field of computer vision, and has been widely used in human-computer interaction, automated measurement, visual navigation, virtual reality, aerospace and medical diagnosis, etc. specific areas. [0003] Human face recognition is a biometric technology for identification based on human facial feature information. A series of related technologies that use a video camera or camera to collect images or video streams containing human faces, automatically detect and track human faces in the images, and then ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V20/64G06V40/166G06V40/45
Inventor 赖志明乔大勇夏长锋杨迪
Owner XI AN ZHISENSOR TECH CO LTD
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