A system and method for face recognition

Abstract

The invention provides a face recognition system and method. The system comprises a processor, at least one infrared emitter and at least two infrared cameras. An infrared emitter is used for emittingstructured light to a face to be recognized when face recognition is performed; the infrared camera is used for receiving the structured light reflected by the face to be recognized, generating an image according to the received structured light pattern reflected by the face to be recognized, and sending the image to the processor. The processor processes the image, calculates the position information and the depth information of the feature points selected from each structured light pattern, and restores the 3D image of the face according to the position information and the depth information. The processor is further configured to extract facial features of the 3D image of the face, and compare the extracted facial features with the facial features of the face stored in advance to recognize the face. The processor is configured to extract the facial features of the 3D image of the face and compare the extracted facial features with the facial features of the face stored in advance. As such, the accuracy of face recognition can be improved, and the application conditions are wide.

Description

technical field [0001] The present invention relates to the technical field of image recognition, in particular to a face recognition system and method. Background technique [0002] With the continuous advancement of science and technology, the types and functions of electronic products are also constantly developing and enriching. In smart phones and smart access control systems, face recognition is often used, and the security is further improved by using face recognition. [0003] The inventor found in the research that most of the face recognition in the prior art adopts the 3D imaging technology of dual cameras. The image is recognized. In this solution, the dual camera uses a visible light sensor in RGGB format, or one uses a visible light sensor in RGGB format, and the other uses a black and white visible light sensor; , the recognition function will be greatly weakened. And the normal dual-camera mode can only calculate the depth information at the contour. For th...

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Problems solved by technology

[0003] The inventor found in the research that most of the face recognition in the prior art adopts the 3D imaging technology of dual cameras. The image is recognized. In this solution, the dual camera uses a visible light sensor in RGGB format, or one uses a visible light sensor in RGGB format, and the other uses a black and white visible light sensor; , the recognition function will be greatly weakened

And the normal dual-camera mode can only calculate the depth information at the contour. For the face, it cannot get the depth information of other parts outside the contour of the face, such as the non-contour part of the forehead and the position in the middle of the face.

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