Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Modified One-Bit Transform Motion Estimation Algorithm based on the Wavelet Transform

웨이블릿 변환을 이용한 보완된 이진 블록 정합 움직임 예측 알고리듬

  • 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)
  • 유근호 (한양대학교 전자컴퓨터통신공학부) ;
  • 이혁 (한양대학교 전자컴퓨터통신공학부) ;
  • 정제창 (한양대학교 전자컴퓨터통신공학부)
  • Received : 2009.12.29
  • Accepted : 2010.03.29
  • Published : 2010.05.30
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Abstract

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.

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.

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References

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