Vassilis Athitsos Jingbin Wang Stan Sclaroff Margrit Betke Detecting Instances of Shape Classes That Exhibit Variable Structure. 121-134 2006 conf/eccv/2006-1 ECCV (1) http://dx.doi.org/10.1007/11744023_10 db/conf/eccv/eccv2006-1.html#AthitsosWSB06