收稿日期: 2012-12-19
修回日期: 2013-03-29
网络出版日期: 2013-11-15
基金资助
国家自然科学基金(61100013)和中央高校基本科研业务费专项(2010YJ19)资助
Fine-grained parallel algorithm for normalized partial distortion search
Received date: 2012-12-19
Revised date: 2013-03-29
Online published: 2013-11-15
袁竞杰 , 张清毅 , 马宜科 , 宋风龙 . 细粒度并行归一化部分失真运动估计[J]. 中国科学院大学学报, 2013 , 30(6) : 813 -818 . DOI: 10.7523/j.issn.2095-6134.2013.06.015
Serial motion estimation does not satisfy real-time requirements of video coding in mobile terminal. A divided-spiral-path parallel motion estimation based on normalized partial distortion search is proposed to make full use of multi-core computing power, and it retains low computational complexity of the serial algorithm. Experimental results show that the proposed algorithm achieves speedup ratios of 3.88-3.96 on a 4-core CPU platform while the cost of trivial computational effort increases by less than 1.2%.
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