Automated evaluation of OCR zoning
Junichi Kanai, Stephen V. Rice, Thomas A. Nartker, George Nagy · IEEE Transactions on Pattern Analysis and Machine Intelligence · 1995
Many current optical character recognition (OCR) systems attempt to decompose printed pages into a set of zones, each containing a single column of text, before converting the characters into coded form. The authors present a methodology for automatically assessing the accuracy of such decompositions, and demonstrate its use in evaluating six OCR systems.>