發(fā)布時間：2018-07-06 07:05

  本文選題：曲線骨架 + 中值圖��； 參考：《計算機輔助設(shè)計與圖形學學報》2017年07期

【摘要】：針對已有的曲線骨架提取方法獲得的曲線骨架不太簡潔,且關(guān)節(jié)點過多,難以有效反映模型拓撲結(jié)構(gòu)的問題,提出一種曲線骨架提取方法.首先運用經(jīng)典的集合覆蓋問題模型對中值面進行優(yōu)化處理,減少模型細節(jié)的干擾,形成中值圖,以更簡潔且規(guī)整地表達模型;然后以收縮的方式根據(jù)中值圖生成曲線骨架,得到有效地反映模型拓撲結(jié)構(gòu)的簡潔的骨架形態(tài).由于中值圖的數(shù)據(jù)規(guī)模遠小于中值面,文中方法的計算效率很高.實驗結(jié)果表明,相比于已有方法,該方法提高了曲線骨架的生成質(zhì)量,且計算速度有明顯提高,甚至可提高3個數(shù)量級.
[Abstract]:A curve skeleton extraction method is proposed to solve the problem that the existing curve skeleton extraction method is not simple and has too many nodes to reflect the topological structure of the model. First, the classical set cover problem model is used to optimize the median surface, which reduces the interference of the model details, forms the median map, and expresses the model more succinctly and regularly. Then, the curve skeleton is generated according to the median graph in a shrinking way. The concise skeleton shape of the topological structure of the model is obtained. Because the data scale of median graph is much smaller than that of median surface, the computational efficiency of this method is very high. The experimental results show that compared with the existing methods, this method can improve the quality of the curve skeleton, and the calculation speed is obviously improved, even three orders of magnitude can be increased.
【作者單位】： 中國科學院軟件研究所計算機科學國家重點實驗室;中國科學院大學;
【基金】：國家自然科學基金(78097316) 中國科學院知識創(chuàng)新工程領(lǐng)域前沿項目
【分類號】：TP391.41

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