Early systems modeled the host data as a disturbing noise limiting the effectiveness of watermark communication 早期的水印系统模型认为原始多媒体数据是限制水印有效通信的干扰噪声。
The multimedia data contain a great deal of redundant information , and thus must be compressed before transmission and storage 由于多媒体数据含有大量冗余信息,因此需要在传输和存储之前进行有损压缩。
Due to the famous dimensionality curse problem , search in a high - dimensional space is considered as a hard problem 特别是随着internet的快速发展,基于内容的海量多媒体数据检索已成为一个热门的研究方向。
We need some means to manage the video and audio data to enable computer systems to build indexes on multimedia data e . g 我们需要有一些方法以管理录像及话音的数据,以便电脑系统能够建立多媒体数据的索引。
Simu1ation field etc . this paper discusses typical multimedia watermarking algorithms . theory and technique related with 3d motion 本文探讨了多媒体数据数字水印的各种典型技术和三维运动相关的理论和方法。