A digital video watermarking algorithm based on MPEG-4 streams
QU Yun-hui · JOURNAL OF SHENZHEN UNIVERSITY SCIENCE AND ENGINEERING · 2008
A new digital video watermarking algorithm based on MPEG-4 stream was proposed.The watermark signal was transformed into wavelet coefficients.The low frequency band in wavelet coefficients was embedded into the low frequency band in DCT coefficients of I frame.The motion vector of B frame was designed to host the mid-frequency band in wavelet coefficients.The experimental results demonstrate that the robustness and intensity of watermark is improved with desirable invisibility.