Affiliation: | (1) Department of Information Technology and Electrical Engineering, Computer Vision Laboratory, ETH Zurich, Sternwartstrasse 7, 8092 Zurich, Switzerland;(2) ESAT-PSI-Visics, Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium;(3) Institute of Computer Aided Automation, Pattern Recognition and Image Processing Group, Vienna University of Technology, Favoritenstrasse 9/183-2, 1040 Vienna, Austria |