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About this paper

Gary Pui-Tung Choi, Kin Tat Ho, Lok Ming Lui

A framework is developed for generating high-quality mesh structures from genus-0 point clouds using spherical conformal parameterization. The approach achieved a 25% reduction in maximum position errors for Laplace-Beltrami approximation and produced meshes with better conformality and higher Delaunay ratios (0.99-1.00) compared to existing methods.

Key insights

  • The accuracy of Laplace-Beltrami operator approximation on point clouds can be enhanced through a specific Gaussian-type weight function within the MLS framework, crucial for conformal mapping.
  • Conformal parameterization can be robustly achieved on point clouds using an iterative scheme (North-South reiteration) that relies solely on solving Laplace equations, effectively improving conformality without complex quasi-conformal computations.
  • Achieving a balanced distribution of points in the spherical parameterization is important for high-quality mesh generation, which can be addressed by a scaling factor derived from geometric invariance properties.

Summary by alphaXiv.

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