Cooperative multi-robot map merging using Fast-SLAM

Authors:
N. Ergin Özkucur;H. Levent AkÄ±n
Affiliations:
Department of Computer Engineering, Artificial Intelligence Laboratory, BoÄŸaziçi University, Istanbul, Turkey;Department of Computer Engineering, Artificial Intelligence Laboratory, BoÄŸaziçi University, Istanbul, Turkey
Venue:
RoboCup 2009
Year:
2010

Citing 9
Cited 1

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Abstract

Multi-robot map merging is an essential task for cooperative robot navigation. In the realistic case, the robots do not know the initial positions of the others and this adds extra challenges to the problem. Some approaches search transformation parameters using the local maps and some approaches assume the robots will observe each other and use robot to robot observations. This work extends a previous work which is based on EKF-SLAM to the Fast-SLAM algorithm. The robots can observe each other and non-unique landmarks using visual sensors and merge maps by propagating uncertainty. Another contribution is the calibration of noise parameters with supervised data using the Evolutionary Strategies method. The developed algorithms are tested in both simulated and real robot experiments and the improvements and applicability of the developed methods are shown with the results.