Manner and discriminant function significance vector generation method null of address

摘要

PROBLEM TO BE SOLVED: To segment the characters with high accuracy and to recognize the character strings even when the segmentation of characters is impossible in the character recognition and character string collation modes by applying the evaluation value (outline penalty) decided based on the sizes of character patterns and the positional relation between the preceding and next patterns to a multiple hypothesis certification system. ;SOLUTION: In a character pattern candidate extraction processing 302, the character pattern candidates are extracted out of the address character lines extracted out of a whole image and a segmentation flag is generated. The outline penalty P of every pattern candidate is calculated in the outline penalty calculation processing 303. In the character recognition processing 304, the characters of every character pattern are identified and the similarity between plural candidate character codes and every candidate character is outputted. In the pattern certainty calculation processing 305, the pattern certainty of every pattern candidate is calculated based on the similarity of character identification results and the outline penalty P. In the address dictionary collation processing 306, the pattern candidates are selected based on the pattern certainty of every pattern candidate and collates the candidate characters of the character identification results with an address character string dictionary.;COPYRIGHT: (C)1997,JPO