H.264 video information hiding method tightly coupled to compression coding process

Abstract

The invention relates to a H.264 video information hiding method tightly coupled to a compression coding process. The core concept of the H.264 video information hiding method is as follows: on the basis of complete coding, high-security or high-capacity information hiding without distortion drift phenomenon is realized in a manner of tightly coupling to compression coding. The method is designed based on complete compressing and coding, so that the distortion drift phenomenon can be completely avoided; simultaneously, the concept of an independent coding unit is introduced; therefore, users can perform different configuration of a design framework according to different requirements, so that demand preferences on the security or the embedding capacity can be satisfied; the method is different from the past any H.264 video steganography method; and thus, the method disclosed by the invention is particularly suitable for a hiding communication scene having low real-time requests and relatively high algorithm performance (the security or the embedding capacity) requests.

Description

technical field [0001] The present invention relates to a video information hiding (Video Information Hiding) method, in particular to an information hiding design framework closely coupled with the H.264 / AVC compression encoding process, and a specific information hiding method under the framework. The method achieves the purpose of message embedding by modifying discrete cosine transform (Discrete Cosine Transform, DCT) coefficients in a complete encoding process, and belongs to the subfield of information hiding in the field of information security technology. Background technique [0002] Currently, the information hiding technology using digital multimedia content as a carrier is mainly divided into two categories: Steganography and Digital Watermarking. Steganographic technology is mainly used for covert communication, which can embed secret information into digital media without damaging the quality of its carrier, making the third party imperceptible to the covert ch...

AI Technical Summary

Problems solved by technology

Since this method performs DCT transformation on each macroblock and screens the embedded blocks according to the texture, but it cannot guarantee that the modified coefficients obtained after screening will not introduce distortion drift, so the design idea and specific implementation of this method and the present invention way significantly different

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