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三维模型轮廓线抽取算法

DOI: 10.11834/jig.20010247

Keywords: 三维模型,轮廓线,连通性,抽取算法,图象绘制

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Abstract:

虽然三维模型的轮廓线在图形交流中起着重要的作用,但由于轮廓线是视点依赖的,当物体在空间运动时,用现有算法从复杂的三维模型中抽取轮廓线需耗费大量时间,为了提高抽取轮廓线的速度,提出了两种新的抽取三维模型轮廓线算法,这两种算法是先利用轮廓线的局部极值特性来获得部分轮廓边,然后利用轮廓线的连通性,通过简单的比较运算,即可获得三维模型的外部轮廓线,实验结果表明,该两种算法都可快速获得三维模型的外围轮廓线,最后还将本算法与相关算法进行了详细的比较分析。

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