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Proceedings Paper

Authorized MPEG-4 video fruition via watermarking recovery and smart card certification
Author(s): Roberto Caldelli; Franco Bartolini
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Paper Abstract

A client-server application for MPEG-4 video distribution, in a VOD (Video-On-Demand) infrastructure, has been built up granting authorized fruition by means of digital watermarking. Once the consumer has chosen to watch a program, his smart card code, plugged in the set top box, is sent back to the server side. This code will be embedded, exactly at that time, in the video sequence before streaming it towards the client through the network (the code will be obviously used for payment too). The client side, adequately equipped with the watermark detector, receives the video and checks it by extracting the identifying code, this one is matched with the code located in the end user smart card and if the comparison is right rendering is allowed, otherwise decoding is stopped and fruition is inhibited.

Paper Details

Date Published: 30 January 2003
PDF: 7 pages
Proc. SPIE 4793, Mathematics of Data/Image Coding, Compression, and Encryption V, with Applications, (30 January 2003); doi: 10.1117/12.454830
Show Author Affiliations
Roberto Caldelli, Univ. degli Studi di Firenze (Italy)
Franco Bartolini, Univ. degli Studi di Firenze (Italy)

Published in SPIE Proceedings Vol. 4793:
Mathematics of Data/Image Coding, Compression, and Encryption V, with Applications
Mark S. Schmalz, Editor(s)

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