H-Walk: Hierarchical Distance Computation for Moving Convex Bodies

@inproceedings{Guibas1999HWalkHD,
  title={H-Walk: Hierarchical Distance Computation for Moving Convex Bodies},
  author={Leonidas J. Guibas and David Hsu and Li Zhang},
  booktitle={Symposium on Computational Geometry},
  year={1999}
}
This paper presents the Hierarchical Walk, or H-Walk algorithm, which maintains the distance between two moving convex bodies by exploiting both motion coherence and hierarchical representations. For convex polygons, we prove that H-Walk improves on the classic Lin-Canny and DobkinKirkpatrick algorithms. We have implemented H-Walk for moving convex polyhedra in three dimensions. Experimental results indicate that, unlike previous incremental distance computation algorithms, H-Walk adapts well… CONTINUE READING
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