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Recognition of Handwritten Characters by Topological Feature Extraction and Multilevel Categorization
July 1972 (vol. 21 no. 7)
pp. 776-785
J.T. Tou, Center for Informatics Research, University of Florida
A handwritten character recognition system has been designed by making use of topological feature extraction and multilevel decision making. By properly specifying a set of easily detectable topological features, it is possible to convert automatically the handwritten characters into stylized forms and to classify them into primary classes with similar topological configurations. Final recognition is accomplished by a secondary stage that performs local analysis on the characters in each primary category. The recognition system consists of two stages: global recognition, followed by local recognition. Automatic character stylization results in pattern clustering which simplifies the classification tasks considerably, while allowing a high degree of generality in the acceptable writing format. Simulation of this scheme on a digital computer has shown only 6 percent misrecognition.
Index Terms:
Character recognition, multilevel categorization, topological feature extraction.
Citation:
J.T. Tou, R.C. Gonzalez, "Recognition of Handwritten Characters by Topological Feature Extraction and Multilevel Categorization," IEEE Transactions on Computers, vol. 21, no. 7, pp. 776-785, July 1972, doi:10.1109/T-C.1972.223581
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