Watermarking of multimedia for e-commerce application

A new infrastructure of digital audio, image, video, online service and electronic commerce by Internet is developing rapidly, but attentions that the digital product right protection are paid by more and more products owners and products distributors. Subsequently, security issuses should be accounted for in the digital networked distribution systems for multimedia products. Watermarking is a new technology of digital copyright protection in recent years. The paper first reviews watermarking technologies and watermarking systems, and analysises the marketing model for E-commerce, then proposes a general system of protecting multimedia products based on watermarking technology. Finally, the paper presents a practical video watermarking scheme for MPEG-4.