Computer Science > Robotics
[Submitted on 28 Jun 2024]
Title:SPITE: Simple Polyhedral Intersection Techniques for modified Environments
View PDF HTML (experimental)Abstract:Motion planning in modified environments is a challenging task, as it
compounds the innate difficulty of the motion planning problem with a changing
environment. This renders some algorithmic methods such as probabilistic
roadmaps less viable, as nodes and edges may become invalid as a result of these
changes.
In this paper, we present a method of transforming any configuration
space graph, such as a roadmap, to a dynamic data structure capable of updating
the validity of its nodes and edges in response to discrete changes in obstacle positions.
We use methods from computational geometry to compute 3D swept volume
approximations of configuration space points and curves to achieve 10-40
percent faster updates and up to 60 percent faster motion planning queries than previous algorithms while requiring a
significantly shorter pre-processing phase, requiring minutes instead of
hours needed by the competing method to achieve somewhat similar update times.
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