With the development and popularization of the Internet, the protection the copyright of digital media contents, especially the digital videos contents became a crucial research direction. In order to improve the robustness of the watermark, this research proposed an energy difference method to embed the digital watermark information into the video frames through DCT transformation of the video frame information. The videos embedding the watermark can be released as MP4, AVI, and WMV formats, and the analyzation of bit error rate and peak signal to noise ratio of the digital videos showed that this algorithm can resist digital image processing, including strong compression and various filtering. This study provides a new method for the copyright protection of digital videos.%随着互联网的普及和发展,对数字媒体内容版权,特别是对数字视频内容的保护成为重要研究课题.针对数字水印的鲁棒性差的问题,通过将视频帧信息进行DCT域变换,设计能量差分方法将数字水印信息嵌入到视频帧信息中.视频可发布为MP4、AVI和WMV等常见视频格式,通过对嵌入视频中数字水印信息误码率和视频的峰值信噪比分析,证明该算法能够较强的抵抗压缩、滤波信息处理过程,为数字视频版权保护提供了新方法.
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