DOI QR코드

DOI QR Code

Fast Reference Frame Selection Algorithm Based on Motion Vector Reference Map

움직임 벡터 참조 지도 기반의 고속 참조 영상 선택 방법

  • Received : 2009.12.03
  • Accepted : 2010.02.10
  • Published : 2010.04.28

Abstract

The variable block size motion estimation (ME) and compensation (MC) using multiple reference frames is adopted in H.264/AVC to improve coding efficiency. However, the computational complexity for ME/MC increases proportional to the number of reference frames and variable blocks. In this paper, we propose a new efficient reference frame selection algorithm to reduce the complexity while keeping the visual quality. First, a motion vector reference map is constructed by SAD of $4{\times}4$ block unit for multi reference frames. Next, the variable block size motion estimation and motion compensation is performed according to the motion vector reference map. The computer simulation results show that the average loss of BDPSNR is -0.01dB, the increment of BDBR is 0.27%, and the encoding time is reduced by 38% compared with the original method for H.264/AVC.

Keywords

H.264/AVC;Fast Reference Frame Selection;Motion Vector Reference Map;Encoding Time

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