Enhanced Hexagonal-Based Search Using Direction-Oriented Inner Search for Motion Estimation
Enhanced Hexagonal-Based Search Using Direction-Oriented Inner Search for Motion Estimation
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DOI：
10.1109/tcsvt.2009.2031461
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发表时间：
2010
影响因子：
8.4
通讯作者：
Beiji Zou;Cao Shi;Canhui Xu;Shu Chen
中科院分区：
文献类型：
--
作者：
Beiji Zou;Cao Shi;Canhui Xu;Shu Chen
The newly developed enhanced hexagonal-based search using point-oriented inner search (EHS-POIS) enormously speeds up hexagon-based search (HS). From a different perspective, an inherent correlation between distortion and spatial direction through statistical analysis is found. Based on the observed distortion distribution, a novel enhanced hexagonal-based search with direction-oriented inner search (EHS-DIOS) is proposed to avoid real distortion calculation and thus reduce high computation. Experimental results show that, the proposed algorithm is faster than EHS-POIS by achieving two times improvement in terms of inner search speed, and as compared with previous works, it makes a better tradeoff between speed and decoded image quality.
