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Multi Point Search Pattern for Fast Search Motion Estimation of High Resolution Video Coding

机译:多点搜索模式用于高分辨率视频编码的快速搜索运动估计

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摘要

Block matching algorithm (BMA) based motion estimation (ME) is most accepted method for removal of temporal redundancy between frames in video coding. With recent advancement in resolution of video, the need of search pattern covering most of macroblocks within search area in frame is increasing. Existing search patterns are tiny and take plenty of time to reach at edge or corner of the search window. With aim of covering nearly every probable candidate macroblocks in all direction and to speed up the search process, multipoint search patterns are presented in this paper. Initial candidate macroblocks are chosen on grid of 12x12 and then search progresses like traditional diamond or hexagon search. Due to multipoint, chances of trapping in incorrect direction is very less and method can exhibit better quality of encoding with optimum number of search points.
机译:基于块匹配算法(BMA)的运动估计(ME)是消除视频编码中帧之间时间冗余的最常用方法。随着视频分辨率的最新发展,对覆盖帧内搜索区域内的大多数宏块的搜索模式的需求正在增加。现有的搜索模式很小,需要花费大量时间才能到达搜索窗口的边缘或角落。为了覆盖各个方向上几乎所有可能的候选宏块并加快搜索过程,本文提出了多点搜索模式。在12x12的网格上选择初始候选宏块,然后像传统的菱形或六边形搜索一样进行搜索。由于多点,在不正确的方向上陷印的机会非常少,并且该方法可以在具有最佳搜索点数的情况下表现出更好的编码质量。

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