In this thesis we summarize the main approaches for surface reconstruction, study the problem of boundary detection for point clouds, and propose a new algorithm based on regular space subdivision.
本文在总结曲面重建主流算法的基础上，对点云的边界检测问题进行了研究，提出了一种基于空间正规分割的边界检测新算法。
Firstly, the paper introduces the application requirement of Global Grid System, discusses the basic element of regular polyhedron subdivision.
首先介绍全球网格系统的应用需求，讨论采用正多面体剖分的基本要素。
Chapter Three: a Boundary Detection Algorithm Based on Regular Space Subdivision.
第三章：基于空间正规分割的边界检测算法。
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