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Video face identifying method

A face recognition and video technology, applied in the field of video face recognition, can solve the problems of inaccurate mapping matrix, PLS unsupervised, ignoring the separability of different types of face samples, etc., to improve the performance of video face recognition, improve The effect of robustness

Active Publication Date: 2014-08-27
TSINGHUA UNIV
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AI Technical Summary

Problems solved by technology

[0012] The problem with CCA is that it ignores the separability of different types of face samples in the public space;
[0016] The problem with PLS is that PLS is unsupervised and does not make full use of the identification information of c-type face samples.
[0017] The problems existing in the existing mapping learning methods are: the mapping matrix learned under the complex changes of the pose and resolution of the video face is inaccurate, and the identification information of the face category is not fully introduced, so the identification of the face recognizer performance is not strong enough

Method used

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Embodiment Construction

[0055] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0056] Embodiments of the present invention provide a video face recognition method, such as figure 1 As shown, it specifically includes the following steps:

[0057] S1: Perform face detection and tracking on the video to obtain a face sequence; in this embodiment, the face detection uses an improved Adaboost classifier, collects face samples from multiple perspectives for training, and uses LBP features with different encoding shapes to describe the face. The Markov random field model is used to make the output of the classifier a matrix containing the posterior probability of different face parts, which is fused into the final multi-pose face detector. Face tracking is ...

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Abstract

The invention discloses a video face identifying method which comprises the following steps of S1, carrying out face detection and trace on video to obtain face sequences, S2, screening the face sequences to obtain a typical face frame set, S3, optimizing the typical face frame set based on a front face generating technique and an image super resolution technique to obtain a reinforced typical face frame set, and S4, comparing the reinforced typical face frame set with a preset static face image matching base to identify or verify faces. Compared with an existing video face identifying method, the video face identifying method filters and compensates change of video face postures and resolutions through the reinforced typical face frame set. Thus, the robustness of video face identification is improved.

Description

technical field [0001] The invention relates to the technical field of video monitoring, in particular to a video face recognition method. Background technique [0002] With the popularity of video surveillance systems and increasing development needs, video-based face recognition has made great progress, and it plays a very important role in intelligent transportation, access control, information security, security, security and other security fields. [0003] A main application mode of the existing video face recognition method is video to static image recognition, the video to static image recognition uses face video as input, and realizes recognition or verification by comparing with a static image face database . [0004] One type of method for video recognition of static images is to use a static face recognition method for each frame of face images to identify, and finally fuse the recognition results of all frames according to probability scoring, distance judgment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 丁晓青黄琛方驰刘长松何志翔雷云丁鏐王争儿梁亦聪彭良瑞
Owner TSINGHUA UNIV
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