摘要
数字水印是近年来出现的数字产品版权保护技术 ,它可以标识作者等版权保护信息和认证信息 .使用水印技术可以鉴别出非法复制和盗用的数字产品 ,保护数字产品的合法拷贝和传播 ,因此它一出现即成为热点问题 .文中主要针对数字水印技术在 MPEG视频版权保护中的应用情况 ,分析了将现有的静态水印技术加之于 MPEG视频上的可能性以及可能出现的问题 ,提出了一种实用的用于 MPEG视频水印的算法 ,并给出了分析和实际验证的结果 .实验证明了这种方法对于I帧的压缩仍然具有 1 0 0 %的检测能力 ,即使对于 P帧和 B帧的压缩也有不错的效果 .
Digital watermark technique has been introduced to protect the copyright of digital products in recent years. With this technique,one can embed the copyright information and authentication information of authors or others. And as the complementarity of cipher technique,it can identify the digital product which has been illegally copied,and it can protect the legal copied product. Because of these merits,the watermark technique has been hot since it appeared. In this paper,the usage of watermark technique,especially in the MPEG system,is discussed. It considers the possibility to apply the static watermark technique to MPEG system directly,and also considers that the problems may occur. At last,a new method of embeding and detecting watermark is introduced together with the result of experiments.
出处
《武汉理工大学学报（交通科学与工程版）》
北大核心
2004年第4期600-603,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
湖北省自然科学基金项目资助 (批准号 :2 0 0 1ABBD84)
