Robust multimedia watermarking: Hidden Markov model approach for video sequences

Authors : Ersin ELBAŞI

Pages : 159-170

View : 16 | Download : 15

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Because of the large amount of frames, similarity between frames and temporal attacks insert ignore into journalissuearticles values(frame dropping, frame averaging, frame swapping etc.);, the process for video watermarking is more difficult than that for image watermarking. Current image watermarking methods are limited to solve all these difficulties. We propose a novel video watermarking system based on the Hidden Markov Model insert ignore into journalissuearticles values(HMM);. This novel watermarking scheme splits the video sequences into a Group of Pictures insert ignore into journalissuearticles values(GOP); with HMM. Portions of the binary watermark are embedded into each GOP with a wavelet domain watermarking algorithm. The embedding process is the standard additive algorithm [1] in low pass insert ignore into journalissuearticles values(LL); and high pass insert ignore into journalissuearticles values(HH); bands in the wavelet domain. This novel system increases the robustness against geometric and temporal attacks, and increases the quality of the watermarked video.
Keywords : Watermarking, Hidden Markov Model, Wavelet domain, Group of pictures