Application of digital watermark technology for movie data in streaming distribution service
Manabu Hirakawa, Junichi Iijima · 2010
Recently, business in digital content has grown at a rapid pace, and a variety of services and environments that carry music and video content have been established. Various distribution services, such as DVD distribution and streaming distribution services over the Internet, have been started. Businesses that handle high-quality video are growing. However, these businesses are incurring increasing damages as a result of illegal copies, the quality of which does not deteriorate as the content is copied, owing to the nature of digitalization. The problems that accompany the evolution of digital technologies are some of the barriers impeding the solid growth of digital content businesses. Against this background, we investigate digital watermarking as a method for protecting for video content in this research, and we consider the related technologies and methods for implementing such watermarking. In order to compare digital watermarking technology with existing technology, we have divided the characteristics of digital watermarking technology into three elements. We discuss new concepts regarding each element and clarify its characteristics. We make a proposal for the copyright protection of digital content, and also propose how copyright protection can be applied in the service field.