A Fast Adaptive Motion Estimation Algorithm

摘要：

UMHexagonS is a fast integer-pixel motion estimation algorithm adopted in H.264/AVC reference software, while in the real time applications, it still has many shortcomings, such as excessive search points and slow search speed. So, further improvement and optimization are needed for this algorithm. In this paper, a fast adaptive motion estimation algorithm is proposed based on the analysis of UMHexagonS algorithm. Many new technologies are applied in the novel algorithm, such as the dynamic search window, motion type adaptive search strategies, directional cross-shaped search, adaptive rectangle-diamond search, adaptive multi-levels octagon regional search and adaptive hexagon search. Experimental results show that the novel algorithm can reduce 10％-30％ time of motion estimation while keeping the video quality almost unchanged. In addition, both the sceneadaptive ability and real-time performance are strongly strengthened.

关键词： Video coding H.264 motion estimation adaptive search

作者: Ziyin Li Qi Yang

作者单位: College of Optical and Electronic Technology China Jiliang University Hangzhou, Zhejiang Province, China

会议类型: 国际会议

会议名称: 2012 International Conference on Computer Science and Electronic Engineering(2012 IEEE计算机科学与电子工程国际会议 ICCSEE 2012)

会议地点: 杭州

会议语种:英文

页码: 656-660

在线出版日期: 2012-03-23（万方平台首次上网日期，不代表论文的发表时间）