- Volume 11 Issue 4
While the broadband network and multimedia technologies have been developing, the commercial market of digital contents has also been widely spreading with recently starting IPTV. Generally, PC player can display digital contents obtained through middleware like a settop box and can only bring the informations about contents like CODEC, bitrate etc. useful for only experts. But general users want to know more optional informations like content's subject, description etc. So unlike previous PC player, we proposed a player system that can get inserted informations, namely EPG(Electronic Program Guide), without database after bringing contents to PC through settop box. In addition, we also proposed DCT(Discrete Cosine Transform) based blind watermark generating method to insert EPG informations. We can extract watermark without original image and insert robust watermark in proportion to coefficients in frequency domain. And we analyzed and parsed PSI data from MPEG-TS. So we could insert wanted information using watermark from EPG. And we composed UI by extracting EPG information from watermark interted contents. Finally we modularized whole system into the watermark insert/extract application and directshow filter based player. So we tried to design this system so that the general developer can do in a way that is easier and faster.
- ISO/IEC 13818-1, "Information technology-Generic coding of moving pictures and associated audio information: Systems."
- 백상훈, "KT IPTV Extended SI Information," ver.0.64, 2008.
- "Specification for Service Information(SI) in DVB systems," DVB Document A038 Rev.3, 2007(7).
- 김대진, 최홍섭, "HSI 워터마크를 이용한 IPTV 콘텐츠 보호 및 인증 시스템 설계", 한국콘텐츠학회논문지, 제10권, 제7호, pp.55-62, 2010. https://doi.org/10.5392/JKCA.2010.10.7.055
- 김형중, 여인권, "블라인드 워터마킹: 튜토리얼", 방송공학회논문지, 제6권, 제3호, pp.270-282, 2001.
- 신화선, DirectShow 멀티미디어 프로그래밍, 한빛미디어, 2002.
- Microsoft DirectX SDK 9.0 Document.
- 김대진, 최홍섭, "휴대용 멀티미디어 디바이스를 위한 TPO(Time, Place, Occasion)-Shift 시스템 설계에 대한 연구", 한국컴퓨터정보학회논문지, 제14권, 제2호, pp.9-16, 2009.
- 김대진, 최홍섭, "OTP를 이용한 IPTV 콘텐츠 보호 및 인증 시스템 설계", 한국콘텐츠학회논문지, 제9권, 제8호, pp.129-137, 2009. https://doi.org/10.5392/JKCA.2009.9.8.129
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