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A method and system for hiding and extracting large-capacity optical information

An information hiding, large-capacity technology, applied in the field of optical information security, can solve the problems of a single key space, no physical space security guarantee, low security, etc., to ensure security, improve privacy, and high compression ratio. Effect

Active Publication Date: 2022-04-29
UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing information hiding methods are based on simple digital coding methods, the key space is single, and there is no security guarantee for the physical space, resulting in low security in the process of information transmission.

Method used

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  • A method and system for hiding and extracting large-capacity optical information
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  • A method and system for hiding and extracting large-capacity optical information

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0066] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0067] figure 1 It is a schematic flowchart of the method for large-capacity optical information hiding of the present invention. like figure 1 As shown, the method for large-capacity optical information hiding ...

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Abstract

The invention relates to a method and system for hiding and extracting large-capacity optical information. The hiding method includes: encoding the information to be hidden with a two-dimensional code to obtain a two-dimensional code set; the two-dimensional code set includes a plurality of two-dimensional codes corresponding to the information to be hidden; by including a spatial light modulator A reflective coherent diffraction imaging system, which diffracts the two-dimensional codes in the two-dimensional code set to obtain a set of diffraction patterns; the diffraction pattern includes the diffraction pattern corresponding to each two-dimensional code; obtains the host video; according to the host video , processing the diffraction patterns in the diffraction pattern set to obtain processed images; hiding the processed images in the host video to obtain a video file with hidden information to be transmitted. The invention can improve the security of information transmission.

Description

technical field [0001] The invention relates to the field of optical information security, in particular to a method and system for hiding and extracting large-capacity optical information. Background technique [0002] The era of network interconnection has made information security issues more and more prominent, and how to hide and transmit secret information without being directly obtained through effective and efficient means is very important. In the current era of information explosion, a huge amount of information is generated all the time, and various corresponding information processing methods are flourishing with it. Optical information security technology, as a security guarantee method for information intercommunication, has highlighted an extremely important position in the Internet age. However, most of the existing information hiding methods are based on simple digital coding methods, with a single key space and no security guarantee of physical space, resu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00G06T9/00G06K19/06
CPCG06T1/0021G06T9/00G06K19/06037G06T2207/10016
Inventor 史祎诗马锐于韬杨栋宇祝玉鹏孙鑫凯张书源陶冶阮天昊
Owner UNIVERSITY OF CHINESE ACADEMY OF SCIENCES
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