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- W4362654037 abstract "Rao-Blackwellized particle filter (RBPF) SLAM solutions with Gaussian Process (GP) maps can both maintain multiple hypotheses of a vehicle pose estimate and perform implicit data association for loop closure detection in continuous terrain representations. Both qualities are of particular interest for SLAM with autonomous underwater vehicles (AUVs) in the open sea, where distinguishable features are scarce. However, the applicability of GP regression to parallel, real-time mapping in an RBPF framework remains limited by the size of the area to survey and the computational cost of the GP training. To overcome these constraints, in this letter we propose the adaption of Stochastic Variational GP (SVGP) regression to online mapping in combination with a novel, efficient particle trajectory storing in the RBPF. We show how the resulting RBPF-SVGP framework can achieve real-time performance in an embedded platform on two AUV surveys containing millions of points. We further test the framework on a live mission on an AUV and we make the implementation publicly available." @default.
- W4362654037 created "2023-04-07" @default.
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- W4362654037 date "2023-06-01" @default.
- W4362654037 modified "2023-10-03" @default.
- W4362654037 title "Online Stochastic Variational Gaussian Process Mapping for Large-Scale Bathymetric SLAM in Real Time" @default.
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- W4362654037 doi "https://doi.org/10.1109/lra.2023.3264750" @default.
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