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Forehead wrinkle motion detection method and device and living body recognition method and system

A motion detection and forehead technology, applied in the field of face recognition, can solve the problem that the security of the face recognition system cannot be guaranteed, and achieve the effect of simple and efficient calculation process, small calculation amount, and simple equipment hardware requirements.

Active Publication Date: 2017-11-07
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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  • Abstract
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Problems solved by technology

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

Method used

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  • Forehead wrinkle motion detection method and device and living body recognition method and system
  • Forehead wrinkle motion detection method and device and living body recognition method and system
  • Forehead wrinkle motion detection method and device and living body recognition method and system

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Embodiment Construction

[0054] 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.

[0055] For a method for detecting forehead wrinkle movements provided by Embodiment 1 of the present invention, see figure 1 , figure 1 It is a schematic flow diagram of the present embodiment, including steps:

[0056] S11, extracting several video frames from the face video to be tested;

[0057] S12. Obtain the forehead area of ​​each video frame extracted from the face video to be tested;

[0058] S13. Calculate the gradient value of each pixel in the forehe...

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Abstract

The invention discloses a forehead wrinkle motion detection method, which comprises the steps of extracting a plurality of video frames from a face video to be detected; acquiring a forehead region of each video frame extracted from the face video to be detected; calculating a gradient value of each pixel of the forehead region in each extracted video frame through an edge detection operator; calculating a variance of the gradient value of each pixel of the forehead region in each extracted video frame to obtain a corresponding forehead wrinkle value of the video frame; and judging a forehead wrinkle motion of the face video to be detected based on the forehead wrinkle value of each extracted video frame. Correspondingly, the invention further discloses a forehead wrinkle motion detection device. The forehead wrinkle motion detection method and device are simple in calculation and high in efficiency.

Description

technical field [0001] The invention relates to the field of face recognition, in particular to a forehead wrinkle motion 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 help to identify whether the face is alive or not by detecting the forehead wrinkle action of the face to be tested. In order to realize the efficient and simple recognition of whether the human face is alive or not d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/171G06V40/161G06V40/20G06V40/45
Inventor 陈全
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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