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- W4297355055 abstract "Visual robot navigation within large-scale, semi-structured environments deals with various challenges such as computation intensive path planning algorithms or insufficient knowledge about traversable spaces. Moreover, many state-of-the-art navigation approaches only operate locally instead of gaining a more conceptual understanding of the planning objective. This limits the complexity of tasks a robot can accomplish and makes it harder to deal with uncertainties that are present in the context of real-time robotics applications. In this work, we present Topomap, a framework which simplifies the navigation task by providing a map to the robot which is tailored for path planning use. This novel approach transforms a sparse feature-based map from a visual Simultaneous Localization And Mapping (SLAM) system into a three-dimensional topological map. This is done in two steps. First, we extract occupancy information directly from the noisy sparse point cloud. Then, we create a set of convex free-space clusters, which are the vertices of the topological map. We show that this representation improves the efficiency of global planning, and we provide a complete derivation of our algorithm. Planning experiments on real world datasets demonstrate that we achieve similar performance as RRT* with significantly lower computation times and storage requirements. Finally, we test our algorithm on a mobile robotic platform to prove its advantages." @default.
- W4297355055 created "2022-09-28" @default.
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- W4297355055 date "2017-09-16" @default.
- W4297355055 modified "2023-09-23" @default.
- W4297355055 title "Topomap: Topological Mapping and Navigation Based on Visual SLAM Maps" @default.
- W4297355055 doi "https://doi.org/10.48550/arxiv.1709.05533" @default.
- W4297355055 hasPublicationYear "2017" @default.
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