KEY CHARACTER EXTRACTION PROGRAM, KEY CHARACTER EXTRACTION DEVICE, KEY CHARACTER EXTRACTION METHOD, COLLECTIVE PLACE NAME RECOGNITION PROGRAM, COLLECTIVE PLACE NAME RECOGNITION DEVICE AND COLLECTIVE PLACE NAME RECOGNITION METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently perform reliable address recognition with high accuracy.;SOLUTION: In this address recognition device, address recognition method and address recognition program, address recognition processing includes character separation processing, key character extraction processing, lump-sum place name recognition processing, and address determination processing. The key character extraction processing extracts a key character from a plurality of single character areas. The key character extraction processing to each of the single character areas includes: characteristic vector extraction processing extracting a characteristic vector from an image corresponding to the single character area; collation processing collating the characteristic vector extracted by the characteristic vector extraction processing and a characteristic vector of the key character in a key character dictionary storing all the possible key characters, and retrieving all possible key character candidates; and key character path determination processing determining a rightful key character path when recognizing the plurality of single character areas each having at least one key character candidate retrieved by the collation processing.;COPYRIGHT: (C)2007,JPO&INPIT