Anand Kumar 0002 C. V. Jawahar R. Manmatha Efficient Search in Document Image Collections. 586-595 2007 conf/accv/2007-1 ACCV (1) http://dx.doi.org/10.1007/978-3-540-76386-4_55 db/conf/accv/accv2007-1.html#KumarJM07