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Image updating process and apparatus based on human face recognition

A face image and image update technology, which is applied in the field of information security, can solve problems that affect the accuracy of face recognition, face recognition processing hardware requirements are high, and ordinary users are difficult to use, so as to reduce requirements and increase accuracy.

Active Publication Date: 2009-07-08
HUAWEI DEVICE CO LTD
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AI Technical Summary

Problems solved by technology

[0003] However, the existing face recognition technology needs to use high-speed processors to calculate a large number of training samples, so it is mainly used on PCs or large systems, making it difficult for ordinary users to use
[0004] In the process of realizing the present invention, the inventor has found that there are at least the following problems in the prior art: the image of the human face will change over time, such as changes in hair and beards, changes in facial features brought about by aging, etc., which will affect Accuracy of facial recognition
At the same time, the existing face recognition technology requires a large number of training samples to increase the accuracy of recognition, and the hardware requirements for face recognition processing are relatively high.

Method used

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  • Image updating process and apparatus based on human face recognition
  • Image updating process and apparatus based on human face recognition
  • Image updating process and apparatus based on human face recognition

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Embodiment approach

[0024] As in the above-mentioned embodiment, the mobile phone contact person updates the picture function, also can not select the contact person but is automatically selected by the mobile phone, and its implementation method is as follows:

[0025] In step 201, the user's face is photographed to obtain a photographed image of the face, for example, a contact person in the mobile phone is photographed through a camera of the mobile phone.

[0026] In step 202, extract the feature data of the face shot image, the image is stored in the mobile phone as a pixel matrix, which is actually an integer matrix, and the mathematical singular value of the integer matrix is ​​calculated to obtain the feature data and stored in the mobile phone .

[0027] At step 203, the feature data of the facial captured image is compared with the stored feature data of multiple user facial images to obtain the most similar user facial image, for example, the singular value feature of the facial captur...

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Abstract

The invention provides a method for updating face recognition images and a device. The method comprises the following steps: acquiring a first face image; comparing the consistency between the first face image and a second face image stored; if the first face image and the second face image are identical with each other, the first face image is stored, and the second face image is updated by the first face image. By keeping updating the face images of users, the method ensures that impacts of changes of face outlines on recognition are reduced, and the recognition accuracy is improved.

Description

technical field [0001] The present invention relates to the field of information security, in particular to face recognition technology, and specifically to an image update method and device based on face recognition. Background technique [0002] At present, face recognition technology has been widely used, such as access control systems and camera surveillance systems. Among the existing face recognition technologies, the eigenface technology is the most widely used. This technique is an algebraic statistical method, which constructs the eigenface matrix of the training samples by calculating the eigenvalues ​​and eigenvectors of the face matrix in the training samples. Then, judge which person the face is by comparing the distance relationship between the face to be recognized and the eigenface matrix. [0003] However, the existing face recognition technology needs to use a high-speed processor to calculate a large number of training samples, so it is mainly used on PC...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
Inventor 田晓东
Owner HUAWEI DEVICE CO LTD
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