Information security display method based on psychological visual modulation

A psycho-visual modulation and information security technology, applied in the field of information security, can solve the problems of privacy protection, important work information security risks, and difficult to detect screen candid behavior, and achieve the effect of ensuring safe display.

Pending Publication Date: 2022-03-01
FUJIAN NORCA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] As the camera functions on various mobile smart devices become more and more powerful, the behavior of secretly taking pictures of the screen is becoming more and more hidden and difficult to detect, which poses a security risk to important work information and brings certain troubles to privacy protection.

Method used

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  • Information security display method based on psychological visual modulation
  • Information security display method based on psychological visual modulation
  • Information security display method based on psychological visual modulation

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Embodiment Construction

[0045] The technical solutions and beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0046] Such as figure 1 As shown, the present invention provides a kind of information safe display method based on psychovisual modulation, suppose the image that needs safe display is I, and the fusion picture refresh frequency is f d , the refresh frequency of the image display device is f c , in satisfying Under the premise of , generate a set of basic subgraphs M 1 , M 2 ,...,M K , then for not less than f c The refresh frequency of the submap M displayed in turn 1 , M 2 ,...,M K , due to the limitations of human visual characteristics, it is impossible to distinguish beyond the critical flicker frequency of 60Hz (ie f d =60Hz) optical signal, what the naked eye sees will be a fused image of K sub-pictures, but only a certain sub-picture can be obtained through the image capture device. For a refresh r...

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Abstract

The invention discloses an information security display method based on psychological visual modulation, which utilizes the difference of imaging principles between human eyes and an image sensor to carry out time domain visual modulation on an image needing to be safely displayed, so that a user who watches with naked eyes can see the normally displayed image, and the user experience is improved. And the image shooting device comprising an image sensor can only obtain meaningless images, so that safe display of important information of the user is ensured to a certain extent, and information leakage caused by malicious shooting and screenshot is prevented.

Description

technical field [0001] The invention belongs to the technical field of information security, in particular to an information security display method based on psychovisual modulation. Background technique [0002] As the camera functions on various mobile smart devices become more and more powerful, the behavior of secretly taking pictures of the screen is becoming more and more hidden and difficult to detect, which poses a security risk to important work information and brings certain troubles to privacy protection. Contents of the invention [0003] The purpose of the present invention is to provide an information security display method based on psycho-visual modulation, so that the image displayed by the display device can be viewed normally by the naked eye of the user, and can also effectively prevent being photographed and screen shot, thereby improving the security of image display. [0004] In order to achieve the above object, the solution of the present invention...

Claims

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Application Information

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IPC IPC(8): H04N1/44H04N19/182H04N19/42
CPCH04N1/44H04N19/182H04N19/42
Inventor 陈明志翁才杰许春耀傅明建张瑞王焕松王晓明陈志伟
Owner FUJIAN NORCA TECH
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