Journal of KIISE:Computer Systems and Theory (한국정보과학회논문지:시스템및이론)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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A Scheduling Algorithm for Parsing of MPEG Video on the Heterogeneous Distributed Environment

이질적인 분산 환경에서의 MPEG비디오의 파싱을 위한 스케줄링 알고리즘

  • 남윤영 (아주대학교 정보통신전문대학원) ;
  • 황인준 (고려대학교 저자컴퓨터공학과)
  • Published : 2004.12.01
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Abstract

As the use of digital videos is getting popular, there is an increasing demand for efficient browsing and retrieval of video. To support such operations, effective video indexing should be incorporated. One of the most fundamental steps in video indexing is to parse video stream into shots and scenes. Generally, it takes long time to parse a video due to the huge amount of computation in a traditional single computing environment. Previous studies had widely used Round Robin scheduling which basically allocates tasks to each slave for a time interval of one quantum. This scheduling is difficult to adapt in a heterogeneous environment. In this paper, we propose two different parallel parsing algorithms which are Size-Adaptive Round Robin and Dynamic Size-Adaptive Round Robin for the heterogeneous distributed computing environments. In order to show their performance, we perform several experiments and show some of the results.

디지털 비디오의 사용이 보편화되면서 비디오에 대한 효율적인 브라우징이나 검색의 요구가 증가하게 되었다. 이러한 연산을 지원하기 위해서는 효과적인 비디오 인덱싱이 결랍되어야 한다. 비디오 인덱싱에서 가장 기초적인 단계의 하나는 비디오론 샷과 장면으로 파싱하는 것이다. 일반적으로, 비디오 파싱은 복잡한 연산을 필요로 하기 때문에, 기존의 단일 컴퓨터 환경에서는 많은 시간이 소요된다. 기존의 연구는 일정한 시간 동안에 각 슬레이브들에게 작업을 할당하는 라운드 로빈 방식을 사용하였다. 그러나 이러한 방식은 이질적인 환경에서는 적용하는데 어려움이 있다. 본 논문에서는 이질적인 분산 컴퓨팅 환경에서 사용가능한 병렬 파싱 알고리즘인 사이즈 적응적인 라운드 로빈과 동적으로 사이즈 적응적인 라운드 로빈 방식을 제안하였다 성능을 비교하기 위해 몇 가지 실험을 하였으며, 그 결과를 분석하였다.

Keywords

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