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Head movement detection method and device and living body recognition method and system

A head movement and detection method technology, applied in the field of face recognition, can solve the problems of high hardware dependence and high cost, and achieve the effect of simple hardware requirements, cost reduction, simple and efficient calculation

Inactive Publication Date: 2017-11-17
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The existing head motion detection technologies include: the 3D image of the face can be obtained through the depth camera or dual cameras, so that the head posture can be determined to judge the head movement. This solution is highly dependent on hardware, which makes the cost higher

Method used

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  • Head movement detection method and device and living body recognition method and system
  • Head movement detection method and device and living body recognition method and system
  • Head movement detection method and device and living body recognition method and system

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] For a head motion detection method provided in Embodiment 1 of the present invention, see figure 1 , figure 1 It is a schematic flow diagram of the present embodiment, including steps:

[0060] S11, extracting several video frames from the face video to be tested;

[0061] S12. Obtain several key point positions of the head of each video frame extracted from the face video to be tested;

[0062] S13. Obtain the yaw angle value and the pitch angle value of...

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Abstract

The invention discloses a head movement detection method, which comprises the steps of extracting a plurality of video frames from a human face video to be detected; acquiring a plurality of key point positions of the head in each of the video frames extracted from the human face video to be detected; acquiring a yaw angle value and a pitch angle value of the head in each of the extracted video frames in the three-dimensional space according to the plurality of key point positions of the head; and judging a movement condition of the head in the human face video to be detected based on the yaw angle value and the pitch angle value of the head in each of the extracted video frames. Correspondingly, the invention further discloses a head movement detection device. The head movement detection method and device disclosed by the invention are simple in calculation, high in efficiency and low in requirement for hardware equipment.

Description

technical field [0001] The invention relates to the field of face recognition, in particular to a head movement detection method and device, and a living body recognition method and system. Background technique [0002] With the development of face recognition technology, more and more scenes need to use face detection to quickly identify a person's identity. However, criminals will use pictures or videos instead of real people for face recognition, so the security of the entire face recognition system cannot be guaranteed. The live face recognition can detect that the current face to be tested is a live face rather than a face in a photo or video, thereby ensuring the security of the face recognition system. When performing face recognition, it can be helpful to identify whether the face is alive or not by detecting the head movement of the face to be tested. [0003] Existing head motion detection technologies include: the 3D image of the face is obtained through a depth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/171G06V20/46
Inventor 陈全
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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