Living body detection method and device, electronic equipment and storage medium

A technology of living body detection and organ area, applied in the field of image processing, can solve the problems of reducing the security of identity authentication, photo attack, and inability to guarantee the accuracy of living body detection, and achieve the effect of improving security, improving accuracy and reducing misjudgment.

Inactive Publication Date: 2019-04-26
BEIJING BYTEDANCE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above methods are easily attacked by photos. For example, through a photo of a legitimate user with eyes closed, a black pen is quickly placed on the user's eyes and then left quickly to simulate the legitimate user's eye-closing action, resulting in the user's photo Misjudged as a live body, the accuracy of the live body detection cannot be guaranteed, and the security of identity authentication is reduced

Method used

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  • Living body detection method and device, electronic equipment and storage medium
  • Living body detection method and device, electronic equipment and storage medium
  • Living body detection method and device, electronic equipment and storage medium

Examples

Experimental program
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Embodiment 1

[0050] figure 1 It is a flow chart of a living body detection method provided by Embodiment 1 of the present disclosure. This embodiment is applicable to detecting whether the user in the recorded video is alive. This method can be executed by a living body detection device, which can adopt Realized by means of software and / or hardware, the device can be configured in electronic equipment, such as a typical computer. Such as figure 1 As shown, the method specifically includes the following steps:

[0051] S110, when it is determined that the live body detection start condition is met, acquire image frames in the video in real time.

[0052] The start condition of live body detection may refer to a condition for determining to start the live body detection operation. Exemplarily, when a start live body detection instruction is received, it is determined that the live body detection start condition is satisfied.

[0053]Generally speaking, video is formed by a series of stati...

Embodiment 2

[0088] figure 2 It is a flow chart of a living body detection method provided in Embodiment 2 of the present disclosure. This embodiment is embodied on the basis of each optional solution in the foregoing embodiments.

[0089] Correspondingly, the method of this embodiment may include:

[0090] S201. Acquiring image frames in the video in real time when it is determined that the live body detection start condition is satisfied.

[0091] For the living body detection, video, image frame, organ region, feature value, feature value set, non-occlusion condition, living body detection end condition, and detection result in this embodiment, you can refer to the description in the above-mentioned embodiment.

[0092] S202. Identify at least one organ region of the user in the image frame, where one organ region corresponds to at least one feature value set, wherein the organ region includes at least one of the following: eye region, mouth region, and nose region; The feature valu...

Embodiment 3

[0107] image 3 It is a schematic structural diagram of a living body detection device provided by an embodiment of the present disclosure, and this embodiment is applicable to detecting whether a user in a recorded video is alive. The device can be implemented in software and / or hardware, and the device can be configured in electronic equipment. Such as image 3 As shown, the device may include: an image frame acquisition module 310 , an organ region identification module 320 , a feature value set update module 330 and a living body detection module 340 .

[0108] The image frame acquisition module 310 is used to acquire the image frame in the video in real time when it is determined that the live body detection start condition is met;

[0109] An organ area identification module 320, configured to identify at least one organ area of ​​the user in the image frame, where an organ area corresponds to at least one feature value set;

[0110] A feature value set update module ...

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Abstract

The invention discloses a living body detection method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining an image frame in a video in real time when itis determined that a living body detection starting condition is met; Identifying at least one organ area of a user in the image frame, wherein one organ area corresponds to at least one characteristic value set; If it is determined that each organ region identified in the target image frame meets an unshielded condition, respectively calculating feature values which are identified in the targetimage frame and are matched with each organ region, and updating and storing the feature values into a corresponding feature value set; And detecting at least one target action condition of the characteristic value set in real time, and determining whether the user is a living body or not according to a detection result of each target action condition when determining that a living body detectionending condition is met. According to the embodiment of the invention, the living body can be accurately identified, and the safety of identity authentication is improved.

Description

technical field [0001] Embodiments of the present disclosure relate to image processing technologies, and in particular, to a living body detection method, device, electronic equipment, and storage medium. Background technique [0002] When people are engaged in various activities, they often need to carry out identity authentication, so as to ensure the security of information. With the development of computers and networks, the popularity of networked electronic devices has made the identity authentication work more efficient. Usually, identity authentication needs to determine that the subject is a living body. [0003] At present, liveness judgment is often required in financial systems and face recognition systems. In this process, the user is generally required to complete basic facial movements. For example, the blinking action. The existing technology mainly determines whether the user is a live user by detecting the changes in the posture parameters of the facial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/70G06V40/45
Inventor 王旭
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD
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