Video steganography method and device based on multi-embedded domain fusion

Abstract

The invention relates to a video steganography method and device based on multi-embedded domain fusion. The method is not limited to a single video embedding domain for embedding the cipher information, but fuses three embedding domains, namely a motion vector domain, a quantization parameter domain and an intra-frame prediction domain for embedding the cipher information. For the motion vector domain part, steganography embedding is implemented by modifying a motion vector generated by a motion estimation module in a video compression coding framework; For the quantization parameter domain, steganography embedding is implemented by modifying quantization parameters of a video coding unit (macro block); And for the intra-frame prediction domain, steganography embedding is implemented by modifying an Intra4x4 intra-frame prediction mode generated by an intra-frame prediction module in a video compression coding framework. The method is particularly suitable for digital multimedia security scenes with higher requirements on embedding capacity and steganography security.

Description

technical field [0001] The present invention relates to a video steganography (Video steganography) method based on multiple embedding domains under the H.264 / AVC video coding standard, in particular to a fusion of a motion vector domain-based, a quantization parameter-based domain and a frame-based The video steganography method in the intra-prediction domain can be used in the field of digital media security, and belongs to the field of information hiding in the field of information security technology. Background technique [0002] Steganography is one of the important means of current covert communication. It hides confidential information in publicly available content for transmission or storage, making it difficult for opponents to browse the confidential content and know the existence of confidential communication or confidential storage facts. [0003] Generally, when designing a steganography algorithm, the following factors need to be considered comprehensively: 1)...

AI Technical Summary

Problems solved by technology

However, there are also disadvantages such as the limited modifiable part in the embedding domain, which leads to the embedding capacity is often not as good as the spatial domain video steganography algorithm.

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