Three-dimensional face recognition device and system based on photometric stereo vision imaging
A three-dimensional face and photometric stereo technology, applied in character and pattern recognition, instruments, computer components, etc., can solve the problems of high cost, damage system cost, data collection and application limitations of three-dimensional face model, and achieve strong real-time performance , Improve the effect of face recognition performance
Pending Publication Date: 2019-05-14
王晓鹏
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The scanner uses a single-chip microcomputer to control the continuous rotation of the stepping motor. The laser generator and the camera rotate together with the rotating arm. The laser generator projects low-intensity laser scanning lines on the face, and the camera acquires the face image with the scanning lines. The 3D model is obtained by image processing, but due to the damage of the laser to the human eye and the high cost of the system, the collection and application of the 3D face model data are greatly limited
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[0022] It will be apparent to those skilled in the art that the present invention may be practiced in other implementations that depart from these specific details. Also, unnecessary details of known functions and constructions have been omitted from the current description in order not to obscure the present invention.
[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings. It should be noted that the dimensions and positions of components in the drawings are for illustrative purposes only, and are not strictly drawn to scale.
[0024] Fig. 1 is a schematic diagram of a photometric stereo vision imaging system device according to the present invention. Figure 1A It is a schematic diagram of a single-camera 3D model reconstruction device under visible light conditions, including an imaging system substrate 100, a color camera 110, a point light source lighting device 120, and the color camera and point light sour...
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The invention aims to provide a device for acquiring a three-dimensional face model quickly and efficiently with high real-time performance based on a photometric stereo vision imaging method, and a three-dimensional face recognition system. The device comprises a photometric stereo vision imaging system, a three-dimensional face reconstruction system for acquiring images based on the photometricstereo vision imaging system and a three-dimensional face recognition system. The photometric stereo vision imaging system is a photometric stereo vision imaging system supporting visible light and / ornear-infrared light conditions and comprises one or more cameras, one or more external controllable light sources and a substrate structure. The invention discloses a three-dimensional face reconstruction system for acquiring images based on a photometric stereo vision imaging system. The three-dimensional face reconstruction system is a three-dimensional model reconstruction system for acquiringimages based on the photometric stereo vision imaging system and comprises a face image preprocessing unit, a face image aligning unit and a three-dimensional face reconstruction unit. The three-dimensional face recognition system is a system for performing face recognition based on a three-dimensional face, and comprises a face key point positioning unit, a face local and / or global feature extraction unit and a face recognition unit.
Description
technical field [0001] The invention relates to the fields of biometric identification, optical imaging technology and face recognition technology, in particular to a three-dimensional face recognition device and system based on photometric stereo vision imaging. Background technique [0002] Face recognition technology is a biometric technology for identity recognition based on facial feature information. The face recognition system mainly includes face image acquisition, face image preprocessing, face image feature extraction and face feature matching recognition. With the rapid development of artificial intelligence and information technology, a large number of face recognition algorithms have been proposed, and face recognition technology has received more and more attention. [0003] However, face recognition as a biometric identification technology also has its obvious weaknesses. For example, the face will change with the age of the person and the change of the faci...
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IPC IPC(8): G06K9/00
Inventor 王淑芳
Owner 王晓鹏