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基于时空相关性的自适应运动估计方法 被引量:6

Adaptive Motion Estimation Based on Spatio-temporal Correlation
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摘要 图象序列中,在时间和空间上相邻的块的运动信息之间具有很强的相关性,利用这种相关性可以得出一个初始运动矢量,然后再根据这个初始运动矢量对当前块的运动类型进行分类,决定下一步搜索范围的大小。实验表明,这种运动估计方法性能接近全搜索方法,计算复杂度却大大降低了。 There exists a high motion correlation between neighbor blocks in spatial and temporal directions. We can determine an initial motion vector using this spatio-temporal correlation, and then determine the search range using this initial motion vector. Experiment results show significantly improved performance in image quality and the computational complexity.
出处 《计算机工程》 EI CAS CSCD 北大核心 2000年第8期50-51,57,共3页 Computer Engineering
关键词 时空相关性 自适应运动估计 运动图象压缩 Motion estimation Spatio-temporal correlation Search range
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参考文献2

  • 1Tsai Jyichang,Signal Processing:Image Comm,1998年,13卷,119页
  • 2Lu J,IEEE Trans Circuit Syst Video Technol,1997年,7卷,14期,429页

同被引文献30

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  • 10Kin Seong-Ju, Ahn Jong-Hak. Adaptive motion estimation algorithm for MPEG-4 video coding. IEEE Trans. Circuits Systems for Video teehnology,2003,2:141-144.

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