한국통신학회논문지 B : 네트워크 및 융합 서비스, v.27, no.12A, pp.1226-1234
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
디지털 방송 환경에서의 메타데이터를 이용한 다양한 부가서비스를 제공하기 위해 MPEG-2 전송스트림을 통한 메타데이터 전송의 필요성이 제기되었다. 본 논문에서는 TV-Anytime 포럼에서 규정한 메타데이터를 오디오비주얼 콘텐츠의 MPEG-2 전송스트림과 다중화하여 전송하는 방법을 제안하였다. 메타데이터를 MPEG-7 시스템의 BiM과 TeM으로 부호화하고 이를 메타데이터 섹션으로 캡슐화 한 후, 프로그램 구성정보를 생성하여 하나의 독렵된 전송 스트림을 생성하였다. 메타데이터 인젝터(injector) 를 통해서 프로그램 구성정보를 재구성하고 오디오비주얼 콘텐츠에 대한 MPEG-2 전송스트럼의 널 패킷(null packet)을 찾아 메타데이터 전송스트림 패킷으로 대체하도록 설계하였다.
KSP Keywords
MPEG-2, MPEG-7
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