A method and system for face authentication

A face and face authentication technology, applied in the field of face authentication, can solve the problems of inability to update, affect the effect of face authentication, and deteriorate the recognition effect, and achieve the effect of improving the anti-interference ability.

Active Publication Date: 2008-07-09
GUANGDONG VIMICRO
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Problems solved by technology

[0018] Since the classifier judgment model that ultimately determines the face authentication effect is obtained by training the training samples, the offline training process in the prior art is closed. That is, after the training sample is selected during the training of the classifier, it cannot be conveniently updated accor

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  • A method and system for face authentication
  • A method and system for face authentication
  • A method and system for face authentication

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Embodiment Construction

[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0068] An embodiment of the present invention provides a face authentication system that can combine training and authentication, and includes two subsystems: an initialization training subsystem and an online training subsystem.

[0069] The composition and structure of the two subsystems are introduced firstly as follows:

[0070] A. The composition and structure of the initialization training subsystem provided in the embodiment of the present invention is shown in FIG. 3 , which includes: an image acquisition and calibration module 301 , a feature extraction module 302 , a feature library module 303 and a training module 304 .

[0071] The image acquisition and calibration module 301 collects an image including a face, and uses manual calibration or...

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Abstract

The invention discloses a face authentication method, which comprises the following steps: collecting multi-frame images containing a same unauthenticated face target to obtain sample features of each frame image containing the same unauthenticated face target; utilizing a sorter judgment model obtained after the training according to a feature database, so as to carry out the authentication of the sample features of each frame image containing the same unauthenticated face target; updating the feature database at least once in previous authentication processes; syncretizing the authentication result of the sample features of the multi-frame images containing the same unauthenticated face target to obtain the authentication result of the target; adding all the sample features of the unauthenticated face target with a confidence level of the syncretized authentication result higher than a preset confidence threshold into the feature database, so as to realize the update of the feature database. The invention also discloses a face authentication system. The face authentication method and the system of the invention can realize automatic updating of the authentication target samples, so as to improve the anti-interference ability of the face authentication system.

Description

technical field [0001] The invention relates to pattern recognition technology, in particular to a face authentication method and system. Background technique [0002] With the rapid development of current computer technology, computer processing capabilities have been greatly improved; at the same time, related technologies in the fields of pattern recognition and computer vision have also achieved rapid development. Face authentication is a hot spot in research and application in related fields. , has important practical value and has been widely used in many fields such as security, entertainment, and human-computer interaction. [0003] Face authentication refers to the use of face detection, facial feature point positioning and other technologies to obtain the face position information in the image, based on the face position information to extract the information contained in the face image through a certain algorithm, and according to A method of judging whether the ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
Inventor 邓亚峰黄英谢东海
Owner GUANGDONG VIMICRO
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