CHARACTER RECOGNITION DEVICE, ITS CHARACTER RECOGNITION METHOD, CHARACTER RECOGNITION PROGRAM, AND INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To provide a character recognition device accurately recognizing handwritten character and precisely eliminating an erroneously recognized character in a recognition result and an illegible character in reading of a document/record.;SOLUTION: A character image extraction part 106 extracts a character image from a document image received by a document image input receipt part 104. A feature quantity extraction part 106 extracts a feature quantity from the character image. A candidate character selection part 107 calculates similarity between a reference feature quantity in a classification dictionary 101 and the extracted feature quantity to select candidate characters. A candidate character determination part 109 determines which character is a proper one when both of the selected candidate characters are put in a similar candidate character recognition dictionary 102. An individual character verification part 110 decides whether the candidate character is effective or be rejected according to a rule shown in an acknowledge condition or a rejection condition of an individual verification dictionary 103. A recognition verification part 112 performs change processing of a candidate character by using similarity r between character images when there are a plurality of same candidate characters in the same character line.;COPYRIGHT: (C)2007,JPO&INPIT