Intellectual property protection systems and digital watermarking

作     者：Lacy, J Quackenbush, SR Reibman, AR Snyder, JH 

作者机构：AT&T Labs Res Florham Park NJ 07932 USA AT&T Labs Res Red Bank NJ USA 

出 版 物：《OPTICS EXPRESS》 (Opt. Express)

年 卷 期：1998年第3卷第12期

页      面：478-484页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：.protected information hiding bitstream audio and video RESISTANT watermarks Intellectual Property compression algorithms Digital watermarking tamper cleartext LNCS Springer-Verlag 

摘      要：Adequate protection of digital copies of multimedia content - both audio and video - is a prerequisite to the distribution of this content over networks. Until recently digital audio and video content has been protected by its size: it is difficult to distribute and store without compression. Modern compression algorithms allow substantial bitrate reduction while maintaining high-fidelity reproduction. If distribution of these algorithms is controlled, cleartext uncompressed content is still protected by its size. However, once the compression algorithms are generally available cleartext content becomes extremely vulnerable to piracy. In this paper we explore the implications of this vulnerability and discuss the use of compression and watermarking in the control of piracy. (C) 1998 Optical Society of America.