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Face identification method and device

A technology of face recognition and face information recognition, which is applied in the field of face recognition methods and devices, can solve the problems of low recognition success rate, achieve the effect of reducing matching difficulty and improving recognition success rate

Active Publication Date: 2017-01-04
中移动信息技术有限公司 +1
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  • Abstract
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Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a face recognition method and device, which solves the problem of low recognition success rate due to the use of fixed preset thresholds in the existing face recognition technology

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  • Face identification method and device

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Embodiment

[0065]Video face recognition is widely used in customs, public security departments, banks, company access control and other fields due to its easy operability, good stability and simple authentication process. However, in the existing face recognition technology, the preset threshold for feature matching cannot be adjusted dynamically, which may easily cause misidentification or low recognition success rate. In order to solve the above problems, such as figure 1 As shown, the embodiment of the present invention provides a kind of face recognition method, specifically comprises the following steps:

[0066] Step 10: Obtain the feature distance value between the face information to be recognized in the current frame of the video stream and the reference face information stored in the face feature database.

[0067] Taking the identity authentication of the business hall as an example, when a user handles business in the business hall, the counter camera will continue to shoot ...

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Abstract

The invention discloses a face identification method and device. The method comprises that to-be-identified face information of a present frame in a video stream and a feature distance value, of reference face information, stored in a face feature library are obtained; whether the to-be-identified face information matches the reference face information is determined according to the relation between the feature distance value and a preset threshold; and if the to-be-identified face information matches the reference face information, the preset threshold is improved and serves as a new preset threshold. According to the invention, the dynamic threshold related to a matching result of the to-be-identified face information of the last frame is used, the to-be-identified face information and the feature distance value of the reference face information are prevented from being influenced by change of the surrounding and identification mistakes, and the success rate of face identification is improved.

Description

technical field [0001] The invention relates to the fields of information security and identity authentication, in particular to a face recognition method and device. Background technique [0002] Video face recognition has become a research hotspot in recent years due to its characteristics of easy operation and good stability and potential huge commercial value. It has been well applied in various fields such as customs, public security departments, and company access control. It is believed that if the video face recognition is applied to the identity authentication of the business hall to replace the original mobile phone number and password authentication method, the identity authentication time of the business hall will be greatly reduced. [0003] At present, the success rate of face recognition depends largely on whether the threshold value set from the beginning is applicable. Different lighting, posture, angle, and expression changes will cause the recognition succ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/00
CPCG06V40/169G06F18/22
Inventor 符晶晶余代员刘春林郑海涛
Owner 中移动信息技术有限公司
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