방송공학회논문지 (Journal of Broadcast Engineering)

  • 제15권3호
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  • Pages.355-361
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  • 2010
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  • 1226-7953(pISSN)
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  • 2287-9137(eISSN)
한국방송∙미디어공학회 (The Korean Institute of Broadcast and Media Engineers)
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웨이블릿 변환을 이용한 보완된 이진 블록 정합 움직임 예측 알고리듬

Modified One-Bit Transform Motion Estimation Algorithm based on the Wavelet Transform

  • 유근호 (한양대학교 전자컴퓨터통신공학부) ;
  • 이혁 (한양대학교 전자컴퓨터통신공학부) ;
  • 정제창 (한양대학교 전자컴퓨터통신공학부)
  • Yoo, Kun-Ho (Department of Electronics Computer Engineering, Hanyang University) ;
  • Lee, Hyuk (Department of Electronics Computer Engineering, Hanyang University) ;
  • Jong, Je-Chang (Department of Electronics Computer Engineering, Hanyang University)
  • 투고 : 2009.12.29
  • 심사 : 2010.03.29
  • 발행 : 2010.05.30
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초록

영상 압축은 멀티미디어 전송에 있어 핵심적인 기술이다. 동영상 압축 기술 중 움직임 예측부는 전체 동영상 압축 부호화에서 가장 복잡한 부분으로, 멀티미디어의 실시간 전송을 위하여 고속 알고리듬이 필요한 부분이다. 본 논문은 기존의 고속 움직임 예측 알고리듬의 하나인 이진 블록 정합 움직임 예측 알고리듬을 개선하여 더욱 정확한 움직임 벡터를 찾는 방법을 제안한다. 제안하는 알고리듬은 웨이블릿 변환 후 고주파 대역의 정보값을 이용해 움직임 벡터를 찾음으로써 기존의 알고리듬을 개선한다. 제안하는 알고리듬은 기존의 알고리듬의 화질을 향상시킨다.

Video Compression is the key technology for the transmission of multi-media data. Because the Motion Estimation is the most complex module in the video compression, fast motion estimation algorithm is essential for the real-time application. In this paper, we propose an enhanced binary motion estimation algorithm based on the wavelet transform. Proposed algorithm improve the quality of coded video.

키워드

참고문헌

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