Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Moving Object Extraction Based on Block Motion Vectors

블록 움직임벡터 기반의 움직임 객체 추출

  • 김동욱 (전주대학교 전기전자정보통신공학부) ;
  • 김호준 (전주대학교 전기전자정보통신공학부)
  • Published : 2006.08.01
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Abstract

Moving object extraction is one of key research topics for various video services. In this study, a new moving object extraction algorithm is introduced to extract objects using block motion vectors in video data. To do this, 1) a maximum a posteriori probability and Gibbs random field are used to obtain real block motion vectors,2) a 2-D histogram technique is used to determine a global motion, 3) additionally, a block segmentation is fellowed. In the computer simulation results, the proposed technique shows a good performance.

움직임 객체의 추출은 비디오 서비스 등에서 주요한 연구목적 중의 하나이다. 본 논문은 블록 움직임 벡터를 이용하여 움직임 객체를 추출하는 새로운 기법을 제시한다. 이를 위하여, 1) 사후 확률 밀도와 Gibbs 랜덤필드의 이용하여 블록 움직임 벡터를 결정하고, 2) 2-D 히스토그램을 바탕으로 전역 움직임을 구하고, 3) 경계 블록 분할 단계를 통해 객체 추출을 달성한다. 제안된 알고리듬은 특히 압축된 비디오 신호의 움직임 객체에 특히 유용하게 이용될 수 있다. 제안된 알고리듬을 여러 가지 영상에 적용한 결과 양호한 결과를 얻을 수 있었다.

Keywords

References

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