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Abstract

An image-to-character-position-correspondence-table producing unit produces image-to-character-position-correspondence-table composed of a set comprising an-image-of-a-document, a character-recognized document and a translated document. A candidate character producing unit produces candidate characters for revising misrecognized characters. A Japanese-document-to-translated-document correspondence table stores a correspondence relationship between an original Japanese document and a translated document in the form of a table. When misrecognized characters are being revised, the image-to-character-position-correspondence-table is displayed by the image-to-character-position-correspondence-table. A revising unit prompts a user to specify a misrecognized portion in the translated document of the image to character-position-correspondence-table. Next, the revising unit refers to the Japanese-document-to-translated-document correspondence table to extract a portion of each of the-image-of-the-document and the recognized document that corresponds to the specified portion and causes the image-to-character-position-correspondence-table producing unit to display the corresponding portions. Subsequently, the revising unit refers to the candidate character producing unit to extract candidate characters as requested by the user and causes the image-to-character-position-correspondence-table producing unit to display these candidate characters. Candidate characters are selected by the user. The misrecognized portion in the recognized document is replaced with the selected candidate characters, a new character-recognized document is translated and a newly translated document is displayed. In this way even foreigners who have little knowledge of Japanese can carry out revision work on misrecognized characters with ease.

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First Claim