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Face living body detection method and device

A living body and face image technology, applied in the field of biometrics, can solve problems such as poor user experience, long waiting time, and unfriendliness, and achieve the effect of no need for waiting time, enhanced accuracy and robustness, and rich features

Active Publication Date: 2018-03-13
BEIJING EYECOOL TECH CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The present invention provides a face detection method and device to solve the problems in the prior art that are not friendly enough, have long waiting time, and poor user experience due to the need for user movement or action cooperation

Method used

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  • Face living body detection method and device
  • Face living body detection method and device

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Embodiment Construction

[0044] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] refer to figure 1 , which shows a flow chart of Embodiment 1 of a human face liveness detection method according to the present invention, the method comprising:

[0046] Step 101, collecting face images, and preprocessing the face images;

[0047] The face image of the detected face is collected, and the detected face may be a living human face or a non-living human face, for example, a photo, a video, a video, and the like. The human face image is a visible light human face image or a near-infrared human face image. Due to various conditions and random interference, the original face images collected cannot be used directly, and must be preprocessed to make them suitable for the process of feature extraction. For face ...

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Abstract

The invention provides a face living body detection method and device. The method comprises the following steps that: collecting a face image, and preprocessing the face image; extracting the BRISQUE(Blind / Referenceless Image Spatial Quality Evaluator) feature of the no-reference image quality assessment in the spatial domain of a preprocessed face image; inputting the BRISQUE feature of the no-reference image quality assessment in the spatial domain into a classifier for classification; and according to a classification result, judging whether the face image is from a living body or not. Theface living body detection method does not need to be cooperated with the movement and the action of a user, and a user experience degree is good. In addition, a photo and an image collected by a video are subjected to secondary imaging to exhibit distortion, including noise, reflection and the like, so that the living body face image, the photo image, the living body face image and the video image have differences on an aspect of image gray level statistics, the differences are used for extracting the BRISQUE features based on gray level statistics for identification, and the accuracy and the robustness of living body detection are enhanced.

Description

technical field [0001] The invention relates to the technical field of biometric identification, in particular to a method and device for detecting human face liveness. Background technique [0002] Face recognition is a biometric technology for identification based on human facial feature information. A series of related technologies that use a video camera or camera to collect images or video streams containing human faces, automatically detect and track human faces in the images, and then perform facial recognition on the detected faces, usually also called portrait recognition and facial recognition. In the life and work of modern people, the use of face recognition technology can effectively enhance security and privacy. But there is also a problem in reality. For example, using false information such as photos or videos may deceive face recognition devices, allowing illegal users to use face recognition as a security line of defense, posing a threat to security and pr...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/161G06V40/172G06V40/45
Inventor 张祥德
Owner BEIJING EYECOOL TECH CO LTD
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