This paper introduces the characteristics of the DCT-based digital video watermarking techniques that have been developed and then proposes a digital watermarking algorithm by modulation of corresponding DCT coefficients according to human visual system in which an embedding strategy is applied .

通过分析已有的基于DCT变换的 视频水印算法，提出了一种充分考虑人眼视觉 特性、并通过采用 水印嵌入 控制策略对特定位置DCT系数进行修改以嵌入水印的 方案。

Layered video coding and Adaptive Modulation and Coding ( AMC ) are combined and the impact of layered structure to system performance is considered in this scheme .

该方法将分层 视频编码和自适应 调制编码相结合，考虑了 视频分层结构对 系统性能的影响。