Video watermarking algorithm based on chaos and motion vector
基于混沌和运动矢量的视频水印算法*

Focusing on the latest video compression standard H.264,this paper proposed a scheme of video watermarking based on the chaotic scrambling and the motion vector field. In this scheme, watermarking was embedded and watermarking information was extracted adaptively with chaotic scrambling transformation in the motion vector field.It recovered the original watermarking information by taking the scrambling inverse transformation. Pseudo-randomness and initial value sensitivity of the chaotic sequence provided a guarantee for the safety of the watermarking. The results indicate that the subjective and objective video qualities are both equivalent with the original video sequence, and the error bit rate is small.