Recognition of numeral strings on maps

This paper presents a complete procedure for the extraction and recognition of hand-printed numeral strings on maps. The extraction algorithm can extract individual characters from a map even if the characters touch each other or touch with graphical line. The feature-based recognition algorithm can recognize numeral characters of any size, position and orientation. Our features for discrimination are simple and easily detectable. Experimental results on utility and cadastral maps have shown that the proposed technique is effective in the automatic data capture of geographic information systems.