Curvature-constrained shortest paths in a convex polygon


Journal Article

Let B be a point robot moving in the plane, whose path is constrained to have curvature at most 1, and let P be a convex polygon with n vertices. We study the collision-free, optimal path-planning problem for B moving between two configurations inside P (a configuration specifies both a location and a direction of travel). We present an O(n2 log n) time algorithm for determining whether a collision-free path exists for B between two given configurations. If such a path exists, the algorithm returns a shortest one. We provide a detailed classification of curvature-constrained shortest paths inside a convex polygon and prove several properties of them, which are interesting in their own right. Some of the properties are quite general and shed some light on curvature-constrained shortest paths amid obstacles.

Duke Authors

Cited Authors

  • Agarwal, PK; Biedl, T; Lazard, S; Robbins, S; Suri, S; Whitesides, S

Published Date

  • January 1, 1998

Published In

  • Proceedings of the Annual Symposium on Computational Geometry

Start / End Page

  • 392 - 401

Citation Source

  • Scopus