Character recognition device, create a character recognition dictionary method, and character recognition method

摘要

PROBLEM TO BE SOLVED: To provide a character recognition dictionary, a character recognition dictionary creating method and character recognition method in which recognition dictionary capacity is not increased and recognition performance is not lowered even when the number of recognition target characters is increased.;SOLUTION: A recognition dictionary 1 stores a single or a plurality of templates with respect to individual character types in advance, and each template is composed of a first character code Co1, a second character code Co2, etc., a dismissal judgment threshold Thr, the amount of representative feature Fd of a recognition target character type, judgement feature vector component information If, and an identification judgment threshold Thd. Besides, the template having an amount of feature common for categories is used for character recognition using the recognition dictionary 1 to reduce the number of templates so that recognition dictionary capacity is reduced and distance calculation is reduced so that a processing speed is enhanced. Besides, the character recognition performance is not affected so that the recognition performance is not lowered either.;COPYRIGHT: (C)2004,JPO