@article{oai:u-ryukyu.repo.nii.ac.jp:02004041,
 author = {Mirza, Hanane H. and Thai, Hien D. and Nakao, Zensho and 仲尾, 善勝},
 issue = {69},
 journal = {琉球大学工学部紀要},
 month = {May},
 note = {Embedding a digital watermark in an electronic document is proving to be a feasible solution for multimedia copyright protection and authentication purposes. In the present paper we propose a new digital video watermarking scheme based on Principal Component Analysis. We detect the video shots based on informational content, and color similarities; we extract the key frames of each shot and each keyframe is composed of three color channels, and our proposed algorithm allows us to embed a watermark in the three color channels RGB of an input video file. The preliminary results show a high robustness against most common video attacks, especially frame dropping, cropping and recalling for a good perceptual quality., 紀要論文},
 pages = {65--69},
 title = {Multi-color channel video watermarking},
 year = {2008}
}