分析了在IPTV组播条件下版权保护面临的新问题、新情况,介绍了版权保护技术中的几种叛逆者追踪技术,以及利用数字指纹技术对IPTV内容进行保护的方法。
This paper presents the developmental status of IPTV,analyzes the copyright protection issues in IPTV multicast, and further introduces the current development of traitor tracing and digital fingerprinting technologies. The unresolved topics and the trends of the development are also given.