A robust video watermarking in motion vectors

This paper presents a robust video watermark algorithm in the motion vectors. Firstly. The Y component of P frame is categorized into high-texture area and low-texture area. The motion vectors are altered according to the texture of the area. Secondly, the prediction errors of the matched blocks are...

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Bibliographic Details
Main Authors: Zina Liu, Huaqing Liang, Xinxin Niu, YixianYang
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Bit rate
Cryptography
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
HDTV
Image coding
Image processing
Image texture
Information security
Information, signal and communications theory
Miscellaneous
Petroleum
Robustness
Signal and communications theory
Signal processing
Signal, noise
Streaming media
Telecommunications and information theory
Video compression
Watermarking
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Description
Summary:This paper presents a robust video watermark algorithm in the motion vectors. Firstly. The Y component of P frame is categorized into high-texture area and low-texture area. The motion vectors are altered according to the texture of the area. Secondly, the prediction errors of the matched blocks are calculated again according to the changed motion vectors. Finally, the new motion vectors together with new prediction errors are encoded into compressed bit-streams. This algorithm can reduce the flaws and block effects of watermarked video. The experiment results show that this watermarking algorithm is robust against classical video processing such as filtering, rate changing and lossy compression.
DOI:10.1109/ICOSP.2004.1442254