모바일 장치를 위한 MPEG-4 콘텐츠의 객체 및 장면 트리 변환

Transforming Objects and a Scene Tree of MPEG-4 Contents for Mobile Devices

  • 김상욱 (경북대학교 컴퓨터과학과) ;
  • 김경덕 (위덕대학교 컴퓨터멀티미디어공학부) ;
  • 이숙영 (삼성전자 무선사업부)
  • 발행 : 2005.04.01

초록

본 논문에서는 모바일 장치를 위한 MPEG-4 콘텐츠 저작을 위하여 객체 및 장면 트리 변환을 이용한 방법을 제안한다. 제안하는 방법은 저작시 MPEG-4 콘텐츠의 객체와 장면 트리를 변환하여 모바일 장치에서 재생할 수 있도록 콘텐츠를 재구성한다. 이 방법은 모바일 장치의 작은 인터페이스에서 재생을 효율적으로 할 수 있도록 장면에 표현되는 각 객체를 기하 객체로 변환하고 그 외형을 축소하여 초기 로딩 시간을 감소시키며, 원 객체의 재생은 사용자가 재생 장면에서 해당 기하 객체를 선택할 때 재생된다. 그리고 제안한 방법을 기존 저작 도구에 적용하여, 모바일 장치의 재생기에서 효율적으로 MPEG-4 콘텐츠를 재생시킬 수 있음을 보였다.

We propose a method using a transformation of an object and a scene tree in order to author MPEG-4 contents for mobile devices in this paper. The method transforms media objects in the scene into geometry objects in order to reduce initial loading time of the contents, and reduces an external form of each object in a scene of the content for presenting it efficiently on the small interface of mobile devices. Therefore, the contents for mobile devices are reconstructed by the method. An original object in the scene is presented on a mobile device when a user clicks a related geometry object. The method was applied to a conventional authoring tool, so we could find that the method showed an efficient presentation of MPEG-4 contents on mobile devices.

키워드

참고문헌

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