Sanja Fidler Gregor Berginc Ales Leonardis Hierarchical Statistical Learning of Generic Parts of Object Structure. 182-189 2006 conf/cvpr/2006 CVPR (1) http://doi.ieeecomputersociety.org/10.1109/CVPR.2006.134 db/conf/cvpr/cvpr2006-1.html#FidlerBL06