Lalitha Agnihotri Nevenka Dimitrova Thomas McGee Sylvie Jeannin J. David Schaffer Jan Nesvadba Envolvable Visual Commercial Detector. 79-84 2003 conf/cvpr/2003 CVPR (2) http://csdl.computer.org/comp/proceedings/cvpr/2003/1900/02/190020079abs.htm db/conf/cvpr/cvpr2003-2.html#AgnihotriDMJSN03