摘要
文章提出一种新颖的基于纠错和同步编码的视频水印方案,在嵌入水印时先将水印信息进行纠错编码后,和同步码作数据封装,然后嵌入到视频数据中。在检测水印时,先检测同步码,然后对得到的信息码进行纠错译码,还原出水印信息。此外,为了抵抗几何攻击,算法利用Zernike矩来确定水印嵌入的位置。实验表明,该水印方案具有低复杂性,能够有效抵抗帧丢失、帧插入等时间域的同步攻击与几何攻击。
An innovative video watermarking scheme based on error correction code and synchronization code is proposed in this paper.The watermarks are coded for error correction and encapsulated with synchronization codes as data packets before they are embedded into host video.The detector tries to detect synchronization codes and distills the information codes for error correction to get watermarks.To against geometric attacks,Zernike moments are used to determine the embedding positions.Experimental results demonstrate that the scheme has a low complexity and can efficiently against temporal synchronization attacks as frame dropping,frame insertion and geometric attacks.
出处
《计算机工程与应用》
CSCD
北大核心
2005年第20期124-126,147,共4页
Computer Engineering and Applications
基金
国家自然科学基金会重点项目研究计划资助课题:网络环境下图像图形信息安全理论与方法的研究(编号:60133020)
关键词
视频水印
同步攻击
扩展戈莱码
ZEMIKE矩
Video watermark,Synchronization attack,Extended-Golay code,Zernike moment
