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Ian D. Miller, Ryan Soussan, Brian Coltin, Trey Smith, and Vijay Kumar. In Proc. IEEE Int. Conf. Rob. Autom. (ICRA), 2022.
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We propose a system that uses semantic object detections to localize a microgravity free-flyer. Many applications require absolute localization in a known reference frame, such as the execution of waypoint trajectories defined by human operators. Classical geometric methods build a map of point features, which are not necessarily matchable after lighting or environmental changes. By contrast, semantics remain invariant to changes up to the robustness of the detection algorithm and motion of the semantic objects. In this work, we describe our approaches for both offline semantic map generation as well as online localization against a semantic map, intended to run in real-time on the robot. We additionally demonstrate how our semantic localizer outperforms image-feature matching in some cases, and show the robustness of the algorithm to environmental changes. Crucially, we show in our experiments that when semantics are used to supplement point features, localization is always improved. To our knowledge, these experiments demonstrate the first use of learned semantics for localization on a free-flying robot in microgravity.
@InProceedings{miller22:semantic,
author = {Ian D. Miller and Ryan Soussan and Brian Coltin and Trey Smith and Vijay Kumar},
title = {Robust Semantic Mapping and Localization on a Free-Flying Robot in Microgravity},
booktitle = {Proc. IEEE Int. Conf. Rob. Autom. (ICRA)},
year = 2022,
}
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