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Adaptive video digital steganography method

An adaptive, video technology that is used in digital video signal modification, selective content distribution, electrical components, etc. to achieve reliable performance, simple operation, and low impact.

Active Publication Date: 2015-06-03
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 drawings and embodiments.

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

[0025] a. Decompose the video file, decompose the video file into I frames and B&P frames according to the corresponding codec format, and obtain GOP information;

[0026] b. Select fast-moving macroblocks, and divide the B&P frame into blocks with a size of 16*16 pixels; then select the fast-moving macroblocks according to the size of the macroblock motion vector; set , Macroblocks divided into B&P frames The horizontal and vertical components of the motion vector, It is the motion vector threshold of the macroblock that meets the conditions; the macroblock selection can be performed as follows:

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

[0028] b-2. If , The macro block is a macro block that meets the fast mo...

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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, belonging 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 are accessing all kinds of information through convenient and fast networks. E-commerce, e-government, network office, etc. have become indispensable tasks to ensure the efficient operation of modern society Ways, e-mail, web 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 terms of information security: whether documents involving national security and government secrets can be safely transmitted on the Internet; whether corporate secrets in e-commerce can escape business Theft by spies; whether personal privacy, such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/122H04N19/176H04N19/467H04N21/2347
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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