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Adaptive video digital steganography method

A self-adaptive, video technology, applied in the direction of digital video signal modification, television, electrical components, etc., to achieve the effect of simple operation, strong adaptability and large amount of embedding

Active Publication Date: 2013-01-30
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although researchers have proposed many video digital steganography algorithms, there is still a lot of room for improving the concealment and embedding capacity of the algorithm.

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Such as figure 1 As shown, the flow chart of the secret information embedding scale in the present invention is given, which includes the following steps:

[0025]a. The video file is decomposed, and the video file is decomposed into I frame and B&P frame according to the corresponding codec format, and GOP information is obtained;

[0026] B. select the fast moving macroblock, divide the B&P frame into blocks according to the macroblock of 16*16 pixel size; then select the fast moving macroblock according to the size of the macroblock motion vector; set , Macroblocks into which B&P frames are divided The horizontal and vertical components of the motion vector, is the motion vector threshold of a qualified macroblock; the macroblock can be selected as follows:

[0027] b-1. Comparison and the size of;

[0028] b-2. If , then the m...

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Abstract

The invention discloses an adaptive video digital steganography method, which comprises the following steps of: a, decomposing a video file into frames I and B &P; b, selecting a macro block in rapid motion according to the magnitude of motion vectors of macro blocks in the frame B&P; c, selecting a texture region in the frame I; d, embedding secret information into the motion vector of the macro block; e embedding control information into the texture region; and f, synthesizing the frame B&P with steganography of the secret information and the frame I with steganography of the control information into a secret loading video file. According to the video digital steganography method disclosed by the invention, by means of embedding the secret information and the control information into the motion vector and the texture region respectively, the advantages of large embedded information amount, no influence to video quality, simplicity to operation and reliable performance are achieved. The video digital steganography method disclosed by the invention not only keeps pace with the development of the information security industry in China to advance the situation, but also brings remarkable social and military benefits, and has an extremely wide industrialized development prospect.

Description

technical field [0001] The invention relates to an adaptive video digital steganography method, which belongs to the technical fields of video analysis, digital image processing and information hiding. Background technique [0002] With the rapid development of computer technology and network communication technology, more and more people obtain all kinds of information through the convenient and fast network. E-commerce, e-government, network office, etc. have become indispensable tasks to ensure the efficient operation of modern society. E-mail, online chat, BBS, blog, Weibo, WeChat, etc. have become people's new daily communication methods. However, while the Internet brings convenience to people, it also brings challenges in information security: whether documents related to national security and government secrets can be safely transmitted on the network; whether corporate secrets in e-commerce can escape commercial Stealing by spies; whether personal privacy, such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N21/2347H04N19/122H04N19/176H04N19/467
Inventor 刘广起赵彦玲郑晓势李娜
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
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