| 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 | en_US |
| ISSN | 0922-5773 |
| 期刊性質 | 國外 |
| 收錄於 | |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/64014 ) |
| SDGS | 優質教育,產業創新與基礎設施 |
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