증강방송 서비스란 방송망과 인터넷망을 연동하는 하이브리드 방송(Hybrid Broadcasting) 환경 하에서 실제 환경과 같은 현실감 있는 증강방송 콘텐츠를 다운로드 받아 서비스를 제공하는 양방향 콘텐츠 서비스를 의미한다. 또한 국제 표준화 회의 MPEG에서는 증강 방송 서비스를 위해 객체 활성화 기술인 MPEG-4 BIFS(BInary Format for Scenes)의 확장으로 증강현실 어플리케이션 포맷 표준기술을 제정중이다. 하지만 본 기술은 현 방송시스템의 환경에서는 구현하기 어려운 상황이며, 현재 각 단말의 호환성을 고려하면 상용화에 어려움이 따른다. 따라서 본 논문에서는 기존 지상파 방송 시스템인 MPEG-2 SYSTEM: Transport Stream을 활용하여 증강방송콘텐츠와 현재 방송스트림 과의 동기화를 가능하게 하는 메카니즘을 제안하려 한다.
KSP Keywords
Binary Format, Hybrid broadcasting, MPEG-2, Mpeg-4
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