Topological SLAM Using Fast Vision Techniques

  • Authors:

  • Felix Werner;Frederic Maire;Joaquin Sitte

  • Affiliations:

  • School of Information Technology, Faculty of Science and Information Technology, Queensland University of Technology, Brisbane, Australia 4001 and NICTA, Queensland Lab, St Lucia, Australia 4072;School of Information Technology, Faculty of Science and Information Technology, Queensland University of Technology, Brisbane, Australia 4001 and NICTA, Queensland Lab, St Lucia, Australia 4072;School of Information Technology, Faculty of Science and Information Technology, Queensland University of Technology, Brisbane, Australia 4001 and NICTA, Queensland Lab, St Lucia, Australia 4072

  • Venue:
  • Proceedings of the FIRA RoboWorld Congress 2009 on Advances in Robotics
  • Year:
  • 2009

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Abstract

In this paper we propose a method for vision only topological simultaneous localisation and mapping (SLAM). Our approach does not use motion or odometric information but a sequence of noisy visual measurements observed by traversing an environment. In particular, we address the perceptual aliasing problem which occurs using external observations only in topological navigation. We propose a Bayesian inference method to incrementally build a topological map by inferring spatial relations from the sequence of observations while simultaneously estimating the robot's location. The algorithm aims to build a small map which is consistent with local adjacency information extracted from the sequence measurements. Local adjacency information is incorporated to disambiguate places which otherwise would appear to be the same. Experiments in an indoor environment show that the proposed technique is capable of dealing with perceptual aliasing using visual observations only and successfully performs topological SLAM.