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In-vivo detection method based on skin color change

A technology of living body detection and skin color, applied in the field of recognition, can solve problems that affect user experience, cannot guarantee the accuracy of live body detection, and achieve the effect of preventing passing

Inactive Publication Date: 2019-08-20
SHANGHAI IRISIAN OPTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, the most important anti-counterfeiting technology for biometric identification is live detection. Most live detection methods require a high degree of cooperation from customers, which seriously affects user experience, and cannot guarantee the accuracy of live detection.

Method used

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  • In-vivo detection method based on skin color change

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 Shown, a kind of living body detection method based on skin color change of the present invention, it comprises the following steps:

[0020] A camera is provided, and the camera is used to capture continuous frames of user images. The duration of the continuous frames of user images is not less than the interval time between the user's heartbeats, so as to ensure that the user images when the heartbeat is captured. In the first preferred embodiment, the user image is a color image, which may be a face image collected during face recognition, or a skin image of other parts of the user collected during other biometric identification, that is, the user image The image must include an image of the user's skin area.

[0021] After the user image is captured, it is necessary to provide a detection system, which is...

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Abstract

The invention discloses an in-vivo detection method based on skin color change, which comprises the following steps: providing a camera to take frame sequential user images; and providing a detectionsystem to detect whether the green component of the skin color in frame sequential user images is changed or not, if the change occurs, then the in-vivo detection passes, if no change occurs, the in-vivo detection fails. The invention also discloses another in vivo detection method based on skin color change, which includes the following steps: providing a camera to take frame sequential user images; and providing a detection system to detect whether the gray value of the skin in the frame sequential user images changes or not, if the gray value of the skin in the frame sequential user imageschanges, the in-vivo detection passes; If the gray value of the skin in the frame sequential user images does not change, the in-vivo detection fails.

Description

technical field [0001] The invention relates to the technical field of recognition, in particular to a living body detection method based on skin color changes. Background technique [0002] Traditional identity verification is mainly proved by external objects such as account passwords or ID cards. Once the external objects are lost or stolen, their identities are easily impersonated or replaced by others, which may cause property losses. [0003] Compared with traditional identification methods, biometric identification technology is more secure. On the one hand, it has good anti-counterfeiting performance and is not easy to be forged. On the other hand, it can be carried with you and can be used anytime and anywhere. At this stage, the most important anti-counterfeiting technology for biometric identification is live detection. Most live detection methods require a high degree of cooperation from customers, which seriously affects user experience, and cannot guarantee the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1171A61B5/103
CPCA61B5/1032A61B5/1171
Inventor 宫雅卓
Owner SHANGHAI IRISIAN OPTRONICS TECH CO LTD
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