Digital video watermarking is a powerful tool for video copyright protection and security authentication . video data is redundancy , so video watermark usually encounters synchronization attacks , such as frame dropping , cut - paste etc , how to improve synchronization attack - resistance of video watermarking has become an important research trend 數(shù)字視頻水印是版權(quán)保護(hù)和安全認(rèn)證的有力工具,而視頻的高冗余性特征使得視頻水印極易受到幀切除、剪切-復(fù)制等同步攻擊,如何提高視頻水印的同步魯棒性成為數(shù)字視頻水印的重要研究?jī)?nèi)容。
The experimental results demonstrate that the two proposed video watermarking algorithms have good fidelity and preferably applicability . they are robust to video synchronization attacks such as frame dropping , cut - paste and other common attacks such as noise and compression . they are feasible algorithms 實(shí)驗(yàn)證明,本文提出的兩種算法有良好的保真度,有較好的普適性,對(duì)幀切除、剪切-復(fù)制等同步攻擊以及噪聲、壓縮等常規(guī)攻擊都有良好的魯棒性,是有較高可行性的算法。