Active planning for underwater inspection and the benefit of adaptivity

We discuss the problem of inspecting an underwater structure, such as a submerged ship hull, with an autonomous underwater vehicle (AUV). Unlike a large body of prior work, we focus on planning the views of the AUV to improve the quality of the inspection, rather than maximizing the accuracy of a gi...

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Main Authors: Hollinger, Geoffrey A., Englot, Brendan J., Hover, Franz S., Mitra, Urbashi, Sukhatme, Gaurav S.
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Language:en_US
Published: 2014
Online Access:http://hdl.handle.net/1721.1/87731
https://orcid.org/0000-0002-2621-7633
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author Hollinger, Geoffrey A.
Englot, Brendan J.
Hover, Franz S.
Mitra, Urbashi
Sukhatme, Gaurav S.
author2 Massachusetts Institute of Technology. Department of Mechanical Engineering
author_facet Massachusetts Institute of Technology. Department of Mechanical Engineering
Hollinger, Geoffrey A.
Englot, Brendan J.
Hover, Franz S.
Mitra, Urbashi
Sukhatme, Gaurav S.
author_sort Hollinger, Geoffrey A.
collection MIT
description We discuss the problem of inspecting an underwater structure, such as a submerged ship hull, with an autonomous underwater vehicle (AUV). Unlike a large body of prior work, we focus on planning the views of the AUV to improve the quality of the inspection, rather than maximizing the accuracy of a given data stream. We formulate the inspection planning problem as an extension to Bayesian active learning, and we show connections to recent theoretical guarantees in this area. We rigorously analyze the benefit of adaptive re-planning for such problems, and we prove that the potential benefit of adaptivity can be reduced from an exponential to a constant factor by changing the problem from cost minimization with a constraint on information gain to variance reduction with a constraint on cost. Such analysis allows the use of robust, non-adaptive planning algorithms that perform competitively with adaptive algorithms. Based on our analysis, we propose a method for constructing 3D meshes from sonar-derived point clouds, and we introduce uncertainty modeling through non-parametric Bayesian regression. Finally, we demonstrate the benefit of active inspection planning using sonar data from ship hull inspections with the Bluefin-MIT Hovering AUV.
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spelling mit-1721.1/877312022-10-01T22:19:28Z Active planning for underwater inspection and the benefit of adaptivity Hollinger, Geoffrey A. Englot, Brendan J. Hover, Franz S. Mitra, Urbashi Sukhatme, Gaurav S. Massachusetts Institute of Technology. Department of Mechanical Engineering Hover, Franz S. Englot, Brendan J. Hover, Franz S. We discuss the problem of inspecting an underwater structure, such as a submerged ship hull, with an autonomous underwater vehicle (AUV). Unlike a large body of prior work, we focus on planning the views of the AUV to improve the quality of the inspection, rather than maximizing the accuracy of a given data stream. We formulate the inspection planning problem as an extension to Bayesian active learning, and we show connections to recent theoretical guarantees in this area. We rigorously analyze the benefit of adaptive re-planning for such problems, and we prove that the potential benefit of adaptivity can be reduced from an exponential to a constant factor by changing the problem from cost minimization with a constraint on information gain to variance reduction with a constraint on cost. Such analysis allows the use of robust, non-adaptive planning algorithms that perform competitively with adaptive algorithms. Based on our analysis, we propose a method for constructing 3D meshes from sonar-derived point clouds, and we introduce uncertainty modeling through non-parametric Bayesian regression. Finally, we demonstrate the benefit of active inspection planning using sonar data from ship hull inspections with the Bluefin-MIT Hovering AUV. United States. Office of Naval Research (ONR Grant N00014-09-1-0700) United States. Office of Naval Research (ONR Grant N00014-07-1-00738) National Science Foundation (U.S.) (NSF grant 0831728) National Science Foundation (U.S.) (NSF grant CCR-0120778) National Science Foundation (U.S.) (NSF grant CNS-1035866) 2014-06-11T14:50:21Z 2014-06-11T14:50:21Z 2012-11 Article http://purl.org/eprint/type/JournalArticle 0278-3649 1741-3176 http://hdl.handle.net/1721.1/87731 Hollinger, G. A., B. Englot, F. S. Hover, U. Mitra, and G. S. Sukhatme. “Active Planning for Underwater Inspection and the Benefit of Adaptivity.” The International Journal of Robotics Research 32, no. 1 (January 1, 2013): 3–18. https://orcid.org/0000-0002-2621-7633 en_US http://dx.doi.org/10.1177/0278364912467485 International Journal of Robotics Research Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Prof. Hover via Angie Locknar
spellingShingle Hollinger, Geoffrey A.
Englot, Brendan J.
Hover, Franz S.
Mitra, Urbashi
Sukhatme, Gaurav S.
Active planning for underwater inspection and the benefit of adaptivity
title Active planning for underwater inspection and the benefit of adaptivity
title_full Active planning for underwater inspection and the benefit of adaptivity
title_fullStr Active planning for underwater inspection and the benefit of adaptivity
title_full_unstemmed Active planning for underwater inspection and the benefit of adaptivity
title_short Active planning for underwater inspection and the benefit of adaptivity
title_sort active planning for underwater inspection and the benefit of adaptivity
url http://hdl.handle.net/1721.1/87731
https://orcid.org/0000-0002-2621-7633
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