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- W2143220699 abstract "To operate outdoors or on non-flat surfaces, mobile robots need appropriate data structures that provide a compact representation of the environment and at the same time support important tasks such as path planning and localization. One such representation that has been frequently used in the past are elevation maps which store in each cell of a discrete grid the height of the surface in the corresponding area. Whereas elevation maps provide a compact representation, they lack the ability to represent vertical structures or even multiple levels. In this paper, we propose a new representation denoted as multi-level surface maps (MLS maps). Our approach allows to store multiple surfaces in each cell of the grid. This enables a mobile robot to model environments with structures like bridges, underpasses, buildings or mines. Additionally, they allow to represent vertical structures. Throughout this paper we present algorithms for updating these maps based on sensory input, to match maps calculated from two different scans, and to solve the loop-closing problem given such maps. Experiments carried out with a real robot in an outdoor environment demonstrate that our approach is well-suited for representing large-scale outdoor environments" @default.
- W2143220699 created "2016-06-24" @default.
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- W2143220699 date "2006-10-01" @default.
- W2143220699 modified "2023-10-18" @default.
- W2143220699 title "Multi-Level Surface Maps for Outdoor Terrain Mapping and Loop Closing" @default.
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- W2143220699 doi "https://doi.org/10.1109/iros.2006.282632" @default.
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