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Combinatorial boundary of a 3D lattice point set

机译:3D晶格点集的组合边界

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Boundary extraction and surface generation are important topological topics for three-dimensional digital image analysis. However, there is no adequate theory to establish relations between these different topological procedures in a completely discrete way. In this paper, we present a new boundary extraction algorithm which gives not only a set of border points but also a polyhedral surface whose vertices are border points by using the concepts of combinatorial/algebraic topologies. We show that our boundary can be considered to be a triangulation or polyhedrization of border points in the sense of general topology, that is, we clarify relations between border points and the triangulated surface.
机译:边界提取和表面生成是三维数字图像分析的重要拓扑主题。但是,没有足够的理论以完全离散的方式在这些不同的拓扑过程之间建立关系。在本文中,我们提出了一种新的边界提取算法,它通过使用组合/代数拓扑的概念,不仅提供了一组边界点,而且还给出了以顶点为边界点的多面体表面。从一般拓扑的意义上讲,我们表明边界可以看作是边界点的三角剖分或多面体化,也就是说,我们阐明了边界点和三角剖分面之间的关系。

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