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ICRA
2005
IEEE

Global A-Optimal Robot Exploration in SLAM

10 years 3 months ago
Global A-Optimal Robot Exploration in SLAM
— It is well-known that the Kalman filter for simultaneous localization and mapping (SLAM) converges to a fully correlated map in the limit of infinite time and data [1]. However, the rate of convergence of the map has a strong dependence on the order of the observations. We show that conventional exploration algorithms for collecting map data are sub-optimal in both the objective function and choice of optimization procedure. We show that optimizing the aoptimal information measure results in a more accurate map than existing approaches, using a greedy, closed-loop strategy. Secondly, we demonstrate that by restricting the planning to an appropriate policy class, we can tractably find non-greedy, global planning trajectories that produce more accurate maps, explicitly planning to close loops even in open-loop scenarios.
Robert Sim, Nicholas Roy
Added 25 Jun 2010
Updated 25 Jun 2010
Type Conference
Year 2005
Where ICRA
Authors Robert Sim, Nicholas Roy
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