An Effective Scene Compositor in MPEG-4 Player

MPEG-4재생기에서의 효율적인 장면 구성기

  • 이현주 (경북대학교 컴퓨터과학과) ;
  • 김상욱 (경북대학교 컴퓨터과학과)
  • Published : 2004.12.01

Abstract

MPEG-4 supports dynamic scene composition through add/delete/replace of object or change of object's properties. Other existing MPEG-4 players focus on transmitting and playing the multimedia data according to MPEG-4 standard. It is insufficient for MPEG-4's characteristic such as playback of various objects and playback of dynamic scene composition. In this paper, we propose an effective scene compositor which is the core component of MPEG-4 player The scene compositor is an optimized processor that searches efficiently the scene graph, creates the data structure for independent management of object information and improves processing ability of user interaction. The scene compositor supports sufficiently scene description information, and is managed independently in player for component extension and application of mobile environment.

MPEG-4는 객체의 삽입/삭제/교체 또는 객체의 속성 변경을 통하여 동적인 장면 구성을 지원한다. 기존의 MPEG-4 재생기들은 MPEG-4 표준에 따라 멀티미디어 데이타를 전송하고 재생하는데 치중하여 MPEG-4의 특징인 다양한 객체의 지원이나 동적인 장면 구성의 지원이 미흡했다 본 논문에서는 MPEG-4 재생기의 핵심 구성요소인 효율적인 장면 구성기를 제안한다. 장면 구성기는 장면 그래프를 효율적으로 탐색하고, 자료구조를 생성하여 객체 정보를 그 특성에 맞게 관리하며, 상호작용 처리 능력을 향상시킨 최적의 처리기이다. 장면 구성기는 장면 기술 정보를 충분히 지원하며, 구성요소 확장과 모바일 환경에 적용하기 위해 재생기에서 독립적으로 관리된다.

Keywords

References

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