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2017 | OriginalPaper | Buchkapitel

Realtime Informed Path Sampling for Motion Planning Search

verfasst von : Ross A. Knepper, Matthew T. Mason

Erschienen in: Robotics Research

Verlag: Springer International Publishing

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Abstract

Robot motions typically originate from an uninformed path sampling process such as random or low-dispersion sampling. We demonstrate an alternative approach to path sampling that closes the loop on the expensive collision-testing process. Although all necessary information for collision-testing a path is known to the planner, that information is typically stored in a relatively unavailable form in a costmap. By summarizing the most salient data in a more accessible form, our process delivers a denser sampling of the free space per unit time than open-loop sampling techniques. We obtain this result by probabilistically modeling—in real time and with minimal information—the locations of obstacles, based on collision test results. We demonstrate up to a 780 % increase in paths surviving collision test.

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Metadaten
Titel
Realtime Informed Path Sampling for Motion Planning Search
verfasst von
Ross A. Knepper
Matthew T. Mason
Copyright-Jahr
2017
DOI
https://doi.org/10.1007/978-3-319-29363-9_23

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