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Symbol Recognition System by Elastic Matching

IP.com Disclosure Number: IPCOM000053817D
Original Publication Date: 1981-Nov-01
Included in the Prior Art Database: 2005-Feb-12

Publishing Venue

IBM

Related People

Authors:
Kurtzberg, JM Tappert, CC [+details]

Abstract

An adaptive interactive tablet recognition technique (elastic matching) used in a symbol (tablet) recognition system is described. The technique involves making overall symbol measures, such as angle and normalized height from a baseline, and storing multiple prototypes of the handwritten symbols. The unknown symbol is matched by optimally warping (deforming) the model of the prototype to get the optimal match to the symbol under recognition. The overall symbol measures (angles, normalized height) are deformed as opposed to the actual recorded x, y points themselves. The system is trained and adapts to the individual user so that the writer may employ his own set of handwritten forms to represent symbols.