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Face recognition method and device

A technology for face recognition and face recognition, applied in character and pattern recognition, image data processing, instruments, etc., can solve problems such as inability to evaluate the quality of face depth maps and affect the accuracy of face recognition models, so as to reduce time cost and Labor cost, the effect of improving the efficiency of face recognition

Active Publication Date: 2021-02-05
合肥的卢深视科技有限公司
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Problems solved by technology

[0003] The present invention provides a face recognition method and device to solve the defects in the prior art that the quality of the face depth map cannot be accurately evaluated and the accuracy of the face recognition model is affected

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0054]The performance of the face analysis and recognition system depends on the quality of the collected face depth map. The face recognition method in the prior art is: input the face depth map to be recognized into the face recognition model, and output the recognition result. Among them, the face recognition model in the prior art is trained based on the face depth sample map, and the fac...

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Abstract

The invention provides a face recognition method and device, and the method comprises the steps: inputting a to-be-recognized face depth image into a face recognition model, and obtaining a face recognition result; wherein the face recognition model is obtained by training by taking a face depth sample graph as a sample, the face depth sample graph is an image which is evaluated to be qualified onthe basis of a face thermodynamic weight graph, and the face thermodynamic weight graph can represent the relevance between a region corresponding to the face depth sample graph and a recognition rate in face recognition; the evaluation result can accurately reflect the influence degree of the to-be-evaluated face depth sample image on the recognition rate, and the high-quality face depth sampleimage can be accurately screened out to serve as the input of the face recognition model, so as to reduce the time cost and labor cost of collecting a large number of face depth sample images to testthe recognition rate, and improve the face recognition efficiency.

Description

technical field [0001] The invention relates to the technical field of machine vision, in particular to a face recognition method and device. Background technique [0002] The performance of a face analysis and recognition system depends on the quality of the acquired depth map of the face. The face recognition method in the prior art is: input the depth map of the face to be recognized into the face recognition model, and output the recognition result. Among them, the face recognition model in the prior art is trained based on the face depth sample map, and the face depth map sample is an image that has been evaluated based on the true value model. Specifically, the face depth map sample is first converted into For the point cloud model, the above model is aligned to the ground truth model through a registration algorithm, and then the average Euclidean distance from each vertex on the depth map model to the nearest neighbor point on the ground truth model is calculated as...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/50
CPCG06T7/50G06V40/164G06V40/168
Inventor 户磊王亚运薛远季栋曹天宇
Owner 合肥的卢深视科技有限公司
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