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An improved three-dimensional face liveness detection method and device thereof

A three-dimensional face and living body detection technology, applied in the field of face recognition and image processing, can solve the problems of poor robustness and stability, low accuracy, etc., achieve high accuracy, stable surface curvature, robustness and stability. The effect of stability

Active Publication Date: 2020-01-03
BEIJING EYECOOL TECH CO LTD +1
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Problems solved by technology

[0005] The existing face liveness detection method only uses the maximum depth difference between feature points for simple judgment, which has low accuracy, poor robustness and stability

Method used

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  • An improved three-dimensional face liveness detection method and device thereof
  • An improved three-dimensional face liveness detection method and device thereof
  • An improved three-dimensional face liveness detection method and device thereof

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Embodiment Construction

[0046] 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.

[0047] refer to figure 1 , shows a flow chart of an embodiment of an improved three-dimensional human face detection method of the present invention, the method comprising:

[0048] Step 101, collecting a three-dimensional face image.

[0049] Usually use the three-dimensional data acquisition module to collect three-dimensional face images, and the three-dimensional data acquisition module can include: a 3D camera for collecting three-dimensional face data; a data processing module for processing the three-dimensional face data to generate a three-dimensional face image. Different from a two-dimensional face image, a three-dimensional face image contains depth information of a face, and the depth information refers to distance ...

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Abstract

The invention provides an improved three-dimensional human face detection method and its device, which relate to the technical field of face recognition and image processing. The method includes: collecting a three-dimensional human face image; feature points, and obtain the three-dimensional coordinate information of each point in the neighborhood of each feature point; calculate the actual surface curvature of each feature point according to the three-dimensional coordinate information of each point in the neighborhood of each feature point; The actual surface curvature judges whether the 3D face image comes from a living body. The invention detects the living body according to the actual curved surface curvature of the feature points, so that the accuracy of the detection result is high, and the detection result has robustness and stability.

Description

[0001] technology neighborhood [0002] The invention relates to the technical field of face recognition and image processing, in particular to an improved three-dimensional human face living body detection method and a three-dimensional human face living body detection device. Background technique [0003] 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. The use of face recognition technology can effectively enhance security and privacy, but there is a problem in reality, that is, using false information such as printed photos, photos or videos in mobile phones or pads can break through the security defense line of the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V20/653G06V40/45
Inventor 孔勇王玉瑶
Owner BEIJING EYECOOL TECH CO LTD
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