Construction and Evaluation of a JFD System Equipped with Both High Distribution Capacity and Low Initial Cost for Internet Broadcasting

Yoshitaka MORIMURA  Tetsutaro UEHARA  Shuhui HOU  Michihiko MINOH  

B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)   Vol.J94-B   No.10   pp.1427-1439
Publication Date: 2011/10/01
Online ISSN: 1881-0209
Print ISSN: 1344-4697
Type of Manuscript: PAPER
live video distribution,  content protection,  CGM,  digital watermark,  digital fingerprint,  JFD,  

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Recent advances in internet broadcasting have made easy distribution of video possible, accommodating tens of thousands of simultaneous viewers yet requiring no large investment in equipment nor special expertise. However, the protection of creators' rights has also become an issue. One solution is to employ a JFD (Joint Fingerprinting and Decryption) system, tracing the illegal redistribution of video via noncancelable digital watermarking. We propose an easy-to-use JFD public-key encryption scheme with high watermark availability that maintains low cost and high capacity. We also verify computation costs and system bandwidth, and evaluate image quality using a PSNR metric.