대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

Variable Sub-pixel Motion Vector Resolution Based on Block Mode Motion Estimation for H.264/AVC

  • Tran, Trung-Kien (DMS Lab., School of Computer Engineering, Sejong University) ;
  • Kim, Dae-Yeon (DMS Lab., School of Computer Engineering, Sejong University) ;
  • Lee, Yung-Lyul (DMS Lab., School of Computer Engineering, Sejong University)
  • 발행 : 2008.06.18
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초록

In H.264, sub-pel motion estimation (ME) has strong effect when coding video sequences. 1/4-pel performs better at low bitrate while 1/8-pel gives better results at high bitrate. In this paper, a variable sub-pixel motion vector resolution based on block mode motion estimation method is proposed. Experiment results show that the proposed method can take the advantage of 1/4-pel at low bitrate and 1/8-pel at high bitrate. In addition to that, time is reduced from 14% to 53% compared to KTA1.3 with 1/8-pel motion vector (MV) resolution.

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