Giovanni Dimauro Sebastiano Impedovo Raffaele Modugno Giuseppe Pirlo Numeral Recognition by Weighting Local Decisions. 1070-1074 2003 conf/icdar/2003 ICDAR http://csdl.computer.org/comp/proceedings/icdar/2003/1960/02/196021070abs.htm db/conf/icdar/icdar2003.html#DimauroIMP03