Face-shielding detecting method based on multi-feature fusion

A technology of multi-feature fusion and face occlusion, which is applied in the field of video detection of face occlusion detection, can solve the problems of insufficient and inability to detect intentional occlusion in real time, and achieve the effect of enhancing robustness
CN102169544AInactive Publication Date: 2011-08-31苏州市慧视通讯科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州市慧视通讯科技有限公司
Publication Date
2011-08-31
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a face-shielding detecting method based on multi-feature fusion, which is realized with the support of a digital camera and a digital signal processing chip. The method is characterized by comprising the following steps of: using the digital camera to acquire a digital video and converting the digital video into a digital image; obtaining a face image from the digital image by using a face detecting algorithm; aligning and zooming the face image and specifying the face image to a fixed resolution; then dividing the face image into a plurality of cells; and computing feature vectors of all cells; and circularly judging whether the face is shielded, wherein a shielding judgment rule is that the total number of the shielding cells is over a set threshold, or the number of the adjacent shielding cells is over a set threshold. A classifier is obtained by using a method of fusing a plurality of textural features and using an SVM method to train. The face-shielding detecting method based on multi-feature fusion has good classification performance and robustness, which can be widely applied to various monitoring occasions to judge whether a deliberate shielding behavior exists so as to screen out the suspicious personnel.
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Description

technical field

[0001] The invention belongs to a video detection method, in particular to a video detection method applied to face occlusion detection. Background technique

[0002] With the continuous popularization of ATM automatic teller machines in the national financial sector, many businesses that were originally handled at bank outlets can now be self-serviced on ATMs of self-service banks. Depositors can deposit, withdraw, transfer, self-service fee payment and other services on the ATM through the bank card in hand. ATM has brought a lot of convenience to our life, has become an inseparable assistant in our life, and has been fully integrated into the daily life of ordinary people. However, self-service banks are unattended and provide financial services 24 hours a day, and the safety of related equipment and customer transaction processes has always been one of the important tasks of the bank's security department. With the extensive use of ATM automatic teller ...

Claims

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