| 摘要 |
PROBLEM TO BE SOLVED: To precisely extract a character string having no exterior features on a document image as a title. SOLUTION: A title extraction device includes an extraction requirement acquisition part 31 for acquiring a keyword character string described near a title character string on a document image and relative location information of the title character string corresponding to the keyword character string, a character recognition part 33 for recognizing each character in a region including the title character string and the keyword character string in the document image, a keyword retrieving part 34 for retrieving the keyword character string from the recognition result to acquire the location, a title location acquisition part 35 for acquiring a location of the title character string from the acquired location of the keyword character string and the relative location of the title character string corresponding to the keyword character string, and a title output part 36 for outputting title character string data from the acquired location of the title character string. COPYRIGHT: (C)2008,JPO&INPIT
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