Dagmar Lang, Christian Winkens, Marcel Häselich, Dietrich Paulus. Hierarchical loop detection for mobile outdoor robots. In Juha Röning, David P. Casasent, editors, Intelligent Robots and Computer Vision XXIX: Algorithms and Techniques, Burlingame, California, USA, January 22-26, 2012. Volume 8301 of SPIE Proceedings, SPIE, 2012. [doi]
Abstract is missing.