Method and device for judging whether upper eyelid shields iris

A technology of judging device and iris is applied in the field of data processing to achieve the effect of ensuring accuracy, improving accuracy and reliability

Pending Publication Date: 2021-03-30
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method and device for judging that the upper eyelid blocks the iris to solve how

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  • Method and device for judging whether upper eyelid shields iris
  • Method and device for judging whether upper eyelid shields iris
  • Method and device for judging whether upper eyelid shields iris

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. 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.

[0044] figure 1 It is a schematic flow chart of the method for judging that the upper eyelid blocks the iris provided by the present invention, as figure 1 shown, including:

[0045] Step S1, obtaining the upper eyelid boundary and iris area in continuous face video frames;

[0046] Specifically, the boundary of the upper eyelid described in the present invention specifically refers to the...

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Abstract

The invention provides a method and a device for judging whether an upper eyelid shields an iris. The method comprises the following steps: acquiring an upper eyelid boundary and an iris region in a continuous face video frame; determining a standard point of the iris area according to the boundary line of the iris area of each human face video frame; judging that the upper eyelid shields the irisunder the condition that continuous shielded video frames exceeding a preset frame number appear; wherein the continuous occlusion video frames refer to continuous face video frames of the upper eyelid boundary passing through the standard points. The standard points of the iris area are determined through the boundary lines of the iris area, so that the standard points used for judging whether shielding occurs or not can also be correspondingly changed in the moving process of the iris area, and therefore, the judgment accuracy is ensured; therefore, the influence of blinking on the judgmentaccuracy is avoided because of a condition that pre-set frame number continuously shields a video frame and accuracy and reliability of shielding judgment are effectively improved.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method and device for judging that an upper eyelid blocks an iris. Background technique [0002] The judgment that the upper eyelid blocks the iris has wide application significance in many fields. For example, when detecting driver fatigue, in the prior art, the driver's fatigue is usually judged by whether the upper eyelid blocks the iris. For example, in When detecting the degree of concentration of students in class, you can also judge the degree of concentration by detecting whether the upper eyelid of the student blocks the iris. [0003] However, in the prior art, the judgment of the upper eyelid blocking the iris is judged by judging the relationship between the upper eyelid boundary line and the inner midline of the eye. However, in many cases, such a detection method is not accurate. For example, when students are in class, they will Staring at the blackboard...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/162G06V40/165G06V40/193G06V20/597
Inventor 李建强彭浩然
Owner BEIJING UNIV OF TECH
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