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3-D Voronoi tessellation algorithms

Research paper by Tomio Hirata

Indexed on: 01 Jun '05Published on: 01 Jun '05Published in: Japan journal of industrial and applied mathematics



Abstract

We consider the discrete Voronoi diagram in the three-dimensional space, that is, the Voronoi tessellation of a 3-D binary image. The input to the tessellation algorithm is a 3-D image containing a set of pixels of value 0 (generators). The goal is to classify the rest of the pixels to the nearest generator. This paper gives a simple algorithm for computing the Voronoi tessellation map of a 3-D binary image. It runs in O(N3) time for anN ×N ×N input image. A hardware algorithm is also presented, which computes the 3-D Voronoi tessellation map in O(N2) time on an O(N3)-cell array.