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A face detection method and system based on corneal reflection and optical encoding

A technology of optical coding and corneal reflection, applied in the field of corneal image processing and analysis, can solve the problem of difficult extraction of corneal reflection information, and achieve the effect of resisting general attacks, solving difficult extraction and easy realization.

Active Publication Date: 2021-07-09
PEKING UNIV
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Problems solved by technology

Since the bright and dark states of the cornea are easier to extract than the specific and subtle image information content in the cornea, it solves the problem of difficult extraction of corneal reflection information

Method used

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  • A face detection method and system based on corneal reflection and optical encoding
  • A face detection method and system based on corneal reflection and optical encoding
  • A face detection method and system based on corneal reflection and optical encoding

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specific Embodiment approach

[0048] image 3 Shown is the flow process of the method provided by the present invention. The specific embodiment of the present invention is as follows:

[0049] 1) The user uses a face recognition device for face recognition, the camera is facing the face and keeps an appropriate distance, and the eyes are kept open. At the same time, place a password display device such as a display or an indicator light on the side of the camera, so that it can be easily seen by the eyes;

[0050] Face recognition devices can include mobile phones, tablets, notebooks, and face recognition punch cards.

[0051] 2) Before the password display device sends the password information, the camera is turned on, and the face video is recorded in the form of video recording.

[0052] 3) The password display device randomly generates a string of binary passwords, and according to the law that light represents 1 and dark represents 0, the screen or indicator light changes from light to dark, and r...

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Abstract

The invention discloses a face detection method and system based on corneal reflection and optical encoding, which belongs to the field of security technology against face recognition attacks, and specifically relates to the processing and analysis of corneal images. Through optical coding, each bit of binary code information is represented by light brightness or darkness, and the cornea reflects the brightness and darkness changes; the cornea reflection information is obtained by extracting the brightness and darkness information of the cornea image, and then the human body is realized through information comparison. Face liveness detection. The method of the invention only needs to extract the bright and dark information of the corneal image, which can solve the problem that the corneal reflection information is difficult to extract, and has very low requirements for camera pixels and image processing and analysis in the later stage, and the method is easy to implement, and is economical and effective; Security against general attacks on face recognition.

Description

technical field [0001] The invention provides a face detection method and system based on corneal reflection and optical encoding, which belongs to the field of security technology against face recognition attacks, and specifically relates to the processing and analysis of corneal images. Background technique [0002] With the development of artificial intelligence technology, face recognition technology is becoming more and more advanced. This technology has developed very mature and practical, and has been widely used in various fields. For example, in the field of public security, the public security system can quickly identify faces and identify and identify criminal suspects by analyzing face images from surveillance cameras in public places such as bank halls and conference venues. At the entrances of customs, ports, museums and confidential departments, face recognition is used to check whether the identity of the certificate holder matches. For example, in the fiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/197G06V40/193G06V40/19G06V40/45
Inventor 文伟平吴勃志孙惠平
Owner PEKING UNIV
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