Combined optic-flow and stereo-based navigation of urban canyons for a UAV.

Hrabar, Stefan; Sukhatme, Gaurav S.; Corke, Peter; Usher, Kane; Roberts, Jonathan M.: Combined optic-flow and stereo-based navigation of urban canyons for a UAV. 2005 IEEE/RSJ International Conference on Intelligent Robots and Systems, Edmonton, Alberta, Canada, August 2-6, 2005, pp. 3309-3316, IEEE, 2005