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电子学报  2006 

一种基于H.264的有效运动估计算法

, PP. 2406-2409

Keywords: 视频编码,运动估计,块匹配,匹配准则

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Abstract:

运动估计算法是实时视频编解码技术的研究重点,高精度的匹配和补偿可以减少预测误差,提高视频图像的压缩效果.为降低在视频编码标准H.264中运动估计的高计算复杂度问题,提出了采用一种基于节点模型的可变形块匹配运动估计算法来搜索最佳运动矢量.该算法充分利用了H.264运动矢量的的统计特性和相关性,并采用基于像素差值分类的运动估计匹配准则.实验表明,在编码性能损失很小的条件下,该算法有效降低了视频压缩编码中运动估计的运算复杂度.

References

[1]  Li Renxiang,Zeng Bing,Liu Ming L.A three-step search algorithm for block motion estimation[J].IEEE Transaction on Circuits System Video Technology,1994,4(4):438-442.
[2]  Yan Wang,Jorn Ostermann,Ya-Qin Zhang.Video Processing and Communications[M].Beijing:Publishing House of Electronics Industry,2003:154-169.
[3]  He Gui-ming,Wu Bao-yuan et al.The Technology of Video Coding and Communications Control Based on Object[M].Wuhan:Publishing House of Wuhan University,2005.177-188.
[4]  Hosur P I,Ma K K.Motion vector field adaptive fast motion estimarion[A].Proc 2nd Int Conf Information,Communications and Signal Processing(ICICS''99)[C].Singapore,1999.7-10.
[5]  Joint Video Specification(ITU-T Rec.H.264|ISO/IEC 1449610 AVC)-Joint Committee Draft.Joint Video Team(JVT)of ISO/IEC MPEG and ITU-T VCEG[C].7th Meeting:Pattaya,Thailand,2003.7-14.
[6]  Xue lin-zhu,Shen Lan-sun.An efficient block-matching motion estimation algorithm for H.264/AVe[J].Acta Electronic Sinica,2004,32(4):583-586.(in Chinese)
[7]  Lee O,Y Wang.Motion compensated prediction using nodal based deformable block matching[J].Journal of Visual Communication and Image Representation.1995,6(1):26-34.

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