一种改进的混编视频水印方案

提出了一种具有鲁棒性和脆弱性的改进混编视频水印方案:将鲁棒性和脆弱性水印分别嵌入到vc}宏块的中频交流系数和运动矢量的水平分量中，实现了秘密信息及验证信息在视频中的隐藏，具有版权保护和视频完整性认证的能力。实验结果表明，与C}. Qiu等提出的混编视频水印方案相比，该方案在鲁棒性水印嵌入时，码率增幅平均降低6%，有更好的抗攻击能力;脆弱性水印对攻击的敏感性更高。

Improved Mixed Video Watermarking Scheme

Proposed an improve mixed video watermarking scheme. 13y embedding the robust and fragile watermarkings into AC coefficients of the middle frequency in the I}CT macroblock and the horizontal component of motion vector to a- chieve the gold of hiding the secret and verifying information in the video, we can protect the video copyright with the a- bility of the integrity certification. I}he results show that; compared to the mixed video watermarking scheme proposed by U. Qiu et al, when embedding the robust watermark, the code rate decreases by 6 % on average and it owns a better resistance to attacks; the fragile watermark is more sensitive to attacks.