On structural modelling for omnifont and handwritten character recognition
A novel scheme for structural modelling of multifont and handwritten characters is presented. The focus is on constructing such structural models that can be hierarchically interpreted leading to a multistage recognition scheme. This can form a basis of a high speed but reliable classifier which leaves the task of detailed discrimination between confusion classes to the secondary stage. The proposed class descriptors or prototype shape models utilise a certain “well-thought” set of shape primitives. They are “simplified” enough to ignore the inter-class variations in font-type or writing style yet retaining enough details for discrimination between the samples of the similar classes at the secondary stage. This type of modelling when combined with a good scheme of checking the spatial interrelation of features results in a powerful character recognition system utilising minimal prototypes per class. It also proves to be robust against various distortions and degradation like touching and broken characters.
KeywordsSecondary Stage Handwritten Character Prototype Class Handwritten Character Recognition Prototype Feature
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