A Constant-Time Efficient Stereo SLAM System

Christopher Mei, Gabe Sibley, Mark Cummins, Paul Newman, Ian Reid
2009 Procedings of the British Machine Vision Conference 2009  
Continuous, real-time mapping of an environment using a camera requires a constanttime estimation engine. This rules out optimal global solving such as bundle adjustment. In this article, we investigate the precision that can be achieved with only local estimation of motion and structure provided by a stereo pair. We introduce a simple but novel representation of the environment in terms of a sequence of relative locations. We demonstrate precise local mapping and easy navigation using the
more » ... ive map, and importantly show that this can be done without requiring a global minimisation after loop closure. We discuss some of the issues that arise from using a relative representation, and evaluate our system on long sequences processed at a constant 30-45 Hz, obtaining precisions down to a few metres over distances of a few kilometres.
doi:10.5244/c.23.54 dblp:conf/bmvc/MeiSCNR09 fatcat:m2vrit76szcy3evgqriy7ciqi4