A method for reading a sheet having one or more regions of choices and a plurality of mark spaces thereon may comprise reading or imaging the sheet, defining one or more choice regions each including one mark space, and processing the image or read sheet. Processing may include using a template. The...http://www.google.fr/patents/US7614553?utm_source=gb-gplus-shareBrevet US7614553 - Method for reading an optically readable sheet
