正菱面體 的英文怎麼說
中文拼音 [zhēnglíngmiàntǐ]
正菱面體
英文
direct rhombohedron-
This paper emphatically researches some typical search algorithms based on block matching of motion estimation, such as 155, fss, tdl, cs and ds. aimed at questions existing in these algorithms, under the elicitation of man vision system, the author designs a new integrative pattem ( sdp ) ftom the bionic view, which shows a parallel processing idea of coarse location and accurate orientation, and then presents a new square - diamond search ( sds ) algorithm for block matching motion estimation. the results of experiment prove that not only the new sos is much faster than above traditional algorithms, but also its psnr and visual quality of the retrieval images are better than those of other algorithms, and as nearly good as that of fs
本文重點研究了三步法（ tss ） 、四步法（ fss ） 、二維對數法（ tdl ） 、交叉法（ cs ）和菱形法（ ds ）等經典的基於塊匹配的運動估值演算法；針對它們存在的問題，在人眼視覺系統的啟發下，從仿生學的角度設計了一種新的綜合模板（ sdp ） ，它體現了粗定位和準確定位并行處理的思想，在此基礎上提出了一種新的用於塊匹配的搜索演算法?正方形?菱形搜索（ sds ）演算法；實驗證明：該演算法的搜索速度比fs 、 tss 、 fss 、 tdl 、 cs和ds都快，而且根據運動矢量恢復出的圖像在psnr和主觀視覺效果方面都和fs相當，比其它演算法要好。
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