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An Implementation and Parallelization of the Scale Space Meshing Algorithm

机译:尺度空间网格划分算法的实现与并行化

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Creating an interpolating mesh from an unorganized set of oriented points is a difficult problemwhich is often overlooked. Most methods focus indeed on building a watertight smoothed meshby defining some function whose zero level set is the surface of the object. However in some casesit is crucial to build a mesh that interpolates the points and does not fill the acquisition holes:either because the data are sparse and trying to fill the holes would create spurious artifactsor because the goal is to explore visually the data exactly as they were acquired without anysmoothing process. In this paper we detail a parallel implementation of the Scale-Space Meshingalgorithm, which builds on the scale-space framework for reconstructing a high precision meshfrom an input oriented point set. This algorithm first smoothes the point set, producing asingularity free shape. It then uses a standard mesh reconstruction technique, the Ball PivotingAlgorithm, to build a mesh from the smoothed point set. The final step consists in back-projecting the mesh built on the smoothed positions onto the original point set. The result ofthis process is an interpolating, hole-preserving surface mesh reconstruction.
机译:从无组织的定向点集创建插值网格是一个难题,通常会被忽略。实际上,大多数方法实际上都是通过定义某些函数(其零水平集是对象的表面)来构建水密平滑网格。但是,在某些情况下,构建一个可以对点进行插值并且不填充采集孔的网格至关重要:由于数据稀疏而试图填充孔会产生虚假的伪像,或者是因为目标是在视觉上准确地探索数据被收购而没有任何顺利的过程。在本文中,我们详细介绍了比例空间网格化算法的并行实现,该算法基于比例空间框架,用于从面向输入的点集重建高精度网格。该算法首先平滑点集,生成无奇点的形状。然后,它使用标准的网格重建技术,即Ball PivotingAlgorithm,从平滑点集构建网格。最后一步是将建立在平滑位置上的网格反投影到原始点集上。此过程的结果是插值,保留孔的表面网格重建。

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