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LAMP 2.0: A Robust Multi-Robot SLAM System for Operation in Challenging Large-Scale Underground Environments

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dc.creator Chang, Yun
dc.creator Ebadi, Kamak
dc.creator Denniston, Christopher E
dc.creator Ginting, Muhammad Fadhil
dc.creator Rosinol, Antoni
dc.creator Reinke, Andrzej
dc.creator Palieri, Matteo
dc.creator Shi, Jingnan
dc.creator Chatterjee, Arghya
dc.creator Morrell, Benjamin
dc.creator Agha-mohammadi, Ali-akbar
dc.creator Carlone, Luca
dc.date 2022-09-07T18:08:18Z
dc.date 2022-09-07T18:08:18Z
dc.date 2022-10
dc.date 2022-09-07T18:03:52Z
dc.date.accessioned 2023-02-17T20:09:49Z
dc.date.available 2023-02-17T20:09:49Z
dc.identifier https://hdl.handle.net/1721.1/145302
dc.identifier Chang, Yun, Ebadi, Kamak, Denniston, Christopher E, Ginting, Muhammad Fadhil, Rosinol, Antoni et al. 2022. "LAMP 2.0: A Robust Multi-Robot SLAM System for Operation in Challenging Large-Scale Underground Environments." IEEE Robotics and Automation Letters, 7 (4).
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/242161
dc.description Search and rescue with a team of heterogeneous mobile robots in unknown and large-scale underground environments requires high-precision localization and mapping. This crucial requirement is faced with many challenges in complex and perceptually-degraded subterranean environments, as the onboard perception system is required to operate in off-nominal conditions (poor visibility due to darkness and dust, rugged and muddy terrain, and the presence of self-similar and ambiguous scenes). In a disaster response scenario and in the absence of prior information about the environment, robots must rely on noisy sensor data and perform Simultaneous Localization and Mapping (SLAM) to build a 3D map of the environment and localize themselves and potential survivors. To that end, this paper reports on a multi-robot SLAM system developed by team CoSTAR in the context of the DARPA Subterranean Challenge. We extend our previous work, LAMP, by incorporating a single-robot front-end interface that is adaptable to different odometry sources and lidar configurations, a scalable multi-robot front-end to support inter- and intra-robot loop closure detection for large scale environments and multi-robot teams, and a robust back-end equipped with an outlier-resilient pose graph optimization based on Graduated Non-Convexity. We provide a detailed ablation study on the multi-robot front-end and back-end, and assess the overall system performance in challenging real-world datasets collected across mines, power plants, and caves in the United States. We also release our multi-robot back-end datasets (and the corresponding ground truth), which can serve as challenging benchmarks for large-scale underground SLAM.
dc.format application/pdf
dc.language en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
dc.relation 10.1109/lra.2022.3191204
dc.relation IEEE Robotics and Automation Letters
dc.rights Creative Commons Attribution-Noncommercial-Share Alike
dc.rights http://creativecommons.org/licenses/by-nc-sa/4.0/
dc.source arXiv
dc.title LAMP 2.0: A Robust Multi-Robot SLAM System for Operation in Challenging Large-Scale Underground Environments
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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