教師資料查詢 | 類別: 期刊論文 | 教師: 張誠 Feng-cheng Chang (瀏覽個人網頁)

標題:Layered Access Control Schemes on Watermarked Scalable Media
學年96
學期1
出版(發表)日期2007/12/01
作品名稱Layered Access Control Schemes on Watermarked Scalable Media
作品名稱(其他語言)
著者Chang, F. C.; Huang, H.-C.; Hang, H.-M.
單位淡江大學資訊軟體學系
出版者
著錄名稱、卷期、頁數The Journal of VLSI Signal Processing 49(3), pp.443-455
摘要Intellectual Property (IP) protection is a critical element in multimedia transmission and delivery systems. Conventional IP protection on multimedia data can be categorized into encryption and watermarking. In this paper, a structure to perform layered access control on scalable media by combining encryption and robust watermarking is proposed, implemented, and verified. By taking advantages of the nature of both encryption and watermarking, copyrights of multimedia contents can be well protected and at the same time, multiple-grade services can be provided. In the summated examples, we assume a scalable transmission scheme over the broadcasting environment and use it to test the effectiveness of proposed method. When the embedded watermark is extracted with high confidence, the key to decrypt the next layer can be perfectly recovered. Then, the media contents are reconstructed and the copyrights are assured. The application examples also demonstrate the practicality of the proposed system.
關鍵字access control;scalable coding;encryption;watermarking
語言英文(美國)
ISSN0922-5773
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式,紙本
相關連結
Google+ 推薦功能,讓全世界都能看到您的推薦!