CHARACTER STRING EXTRACTION METHOD AND CHARACTER STRING EXTRACTION DEVICE

摘要

This character string extraction device comprises: a replacement information registration unit (80) wherein replacement information for replacing character information that is expected to be falsely recognized is registered; a candidate character data registration unit (81) wherein anticipated candidate character data is registered; an image information conversion unit (82) whereby read image information is converted to character information; a character information conversion unit (83) whereby, if a specific character is included in the character information, the specific character is converted to a specified character and, if the specific character is not included, the converted character information is used, and read character data is generated; a search character generation unit (84) whereby a prescribed character in read character data is converted to a special character and search character data is generated from the read character data; and a first comparison unit (85) whereby the search character data and the candidate character data are compared.