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RESEARCH PAPERS

A Convergent Convex Decomposition of Polyhedral Objects

[+] Author and Article Information
Yong Se Kim, D. J. Wilde

Design Division, Department of Mechanical Engineering, Stanford University, Stanford, CA 94305

J. Mech. Des 114(3), 468-476 (Sep 01, 1992) (9 pages) doi:10.1115/1.2926575 History: Received October 01, 1989; Revised December 01, 1990; Online June 02, 2008

Abstract

A convex decomposition method, called Alternating Sum of Volumes (ASV), uses convex hulls and set difference operations. ASV decomposition, however, may not converge, which severely limits the domain of geometric objects that the current method can handle. We investigate the cause of non-convergence and present a remedy; we propose a new convex decomposition called Alternating Sum of Volumes with Partitioning (ASVP) and prove its convergence. ASVP decomposition is a hierarchical volumetric representation which is obtained from the boundary information of the given object based on convexity. As an application, from feature recognition by ASVP decomposition if briefly discussed.

Copyright © 1992 by The American Society of Mechanical Engineers
Topics: Surgery , Hull
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