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Distortion-less data concealing method for pseudo-color format picture

A data hiding, pseudo-color technology, applied in the components of color TV, image reproducer of solid-state color display device, color TV, etc., to avoid misunderstanding, fast extraction, and low robustness

Inactive Publication Date: 2003-03-26
SUN YAT SEN UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

For N-bit pseudocolor

Method used

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  • Distortion-less data concealing method for pseudo-color format picture
  • Distortion-less data concealing method for pseudo-color format picture

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[0041] At present, the storage of electronic medical records in medicine is an urgent problem to be solved: firstly, medical records need to be kept confidential; secondly, data consistency between medical records and diagnosis evidence needs to be maintained. Hiding electronic medical records in the medical images taken by patients during the diagnosis process can solve the problems of confidentiality and data consistency of medical records. Unlike digital watermarks that protect copyright, electronic medical records have relatively low robustness requirements for hidden information. However, the special use of medical images will produce two problems: 1) in some applications, any distortion of medical images is not allowed (including other situations that have higher requirements for image grayscale resolution). Conventional information hiding methods will not be able to meet the requirements due to the distortion introduced. 2) The right to personal privacy puts forward ex...

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Abstract

The invention relates to the method for processing the multi-media signal. The method uses the principle of the pseudo color format image displaying, the service condition of the colors in the image as well as the redundancy existed in the colors. With a lot of information being embedded in the image, meanwhile it is ensured that any distortion will not appear in the image with the information being embedded. The invention is suitable to the application occasion in medicine and military affairs that requires the image with the information being hided without any distortion appearing.

Description

technical field [0001] The invention relates to a multimedia signal processing method, in particular to a distortion-free data hiding method. Background technique [0002] Data hiding methods, by embedding information in the original media data to prove the ownership of the data or to convey the information itself. Through the data hiding method, the data consistency and inseparability between the embedded data and the embedded media can be realized, which can be used in medicine, such as electronic medical records. By hiding the medical records in the captured medical images, the confidentiality of the medical records and the connection with diagnosis can be ensured. According to the data consistency among them; military, such as erasing important military information from the picture and hiding it in the picture, so as to realize the secret transmission of highly confidential information. [0003] At present, almost all conventional data hid...

Claims

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Application Information

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IPC IPC(8): H04N1/387H04N1/44H04N1/56H04N9/64H04N11/00
Inventor 刘红梅黄继武
Owner SUN YAT SEN UNIV
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