Digital video watermarking in MPEG-2 compressed stream
Yu Su · Journal of China Institute of Communications · 2000
Based on characteristics of MPEG 2 video coding system,the HG algorithm is discussed in this paper,which is a typical digital video watermarking algorithm in the compressed stream To optimize this system,the dynamic strategy is introduced to control the quantity of embedding information and modulation amplitude of embedding information in DCT domain Simulation results show that the proposed scheme can more rationally and effectively embed watermark information than the original algorithm,while the complexity of watermarking system markedly reduced