Title
Approximating the Generalized Voronoi Diagram of Closely Spaced Objects
Abstract
We present an algorithm to compute an approximation of the generalized Voronoi diagram GVD on arbitrary collections of 2D or 3D geometric objects. In particular, we focus on datasets with closely spaced objects; GVD approximation is expensive and sometimes intractable on these datasets using previous algorithms. With our approach, the GVD can be computed using commodity hardware even on datasets with many, extremely tightly packed objects. Our approach is to subdivide the space with an octree that is represented with an adjacency structure. We then use a novel adaptive distance transform to compute the distance function on octree vertices. The computed distance field is sampled more densely in areas of close object spacing, enabling robust and parallelizable GVD surface generation. We demonstrate our method on a variety of data and show example applications of the GVD in 2D and 3D.
Year
DOI
Venue
2015
10.1111/cgf.12561
Computer Graphics Forum
Field
DocType
Volume
Adjacency list,Parallelizable manifold,Computer science,Metric (mathematics),Theoretical computer science,Distance transform,Artificial intelligence,Voronoi diagram,Computer graphics,Computer vision,Vertex (geometry),Algorithm,Octree
Journal
34
Issue
ISSN
Citations 
2
0167-7055
3
PageRank 
References 
Authors
0.42
27
4
Name
Order
Citations
PageRank
John Edwards1102.88
Eric Daniel2153.94
Valerio Pascucci33241192.33
Chandrajit L. Bajaj42880306.59