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    • 5. 发明专利
    • CHARACTER REOGNITION DEVICE
    • JPH0765131A
    • 1995-03-10
    • JP20789693
    • 1993-08-23
    • MATSUSHITA ELECTRIC IND CO LTD
    • EMURA SATOSHINAKAO ICHIROTAKENOUCHI MARIKOTAKAKURA MINORU
    • G06K9/72G06K9/62
    • PURPOSE:To provide the character recognition device which securely perform character recognition even when planned recognition candidate characters include no correct answer character. CONSTITUTION:The character recognition device is equipped with an image input means 11, a 1st character recognition means 12 which converts respective character image data into the character codes of recognition candidate characters and recognition evaluation values, a word dictionary which contains words, a word collating means 15 which select words including the character codes of the characters of a word when the characters of the word match the correspondent recognition candidate characters, a 2nd character recognizing means 13 which calculates recognition evaluation values as to characters which are not included among the recognition candidate characters as to the characters of the words, a word evaluation value calculating means 16 which calculates word evaluation values by using the recognition evaluation values obtained by the 1st character recognition means for the characters matching the recognition candidate characters or the recognition evaluation values obtained by the 2nd character recognition means for other characters, and a word selecting means 17 which selects the word having the best word evaluation value.
    • 6. 发明专利
    • DRIVER'S LICENSE RECOGNITION DEVICE
    • JPH0757045A
    • 1995-03-03
    • JP20305293
    • 1993-08-17
    • MATSUSHITA ELECTRIC IND CO LTD
    • TAKAKURA MINORUEMURA SATOSHITAKENOUCHI MARIKONAKAO ICHIRO
    • G06K9/20G06T1/00G06T7/00
    • PURPOSE:To provide the high-speed driver's license recognition device which is high in recognition rate by separating license entry items into detailed items and performing recognition wherein character kinds to be recognized are strictly narrowed down. CONSTITUTION:An item image extraction part 3 extracts images of items selected by an item selection part 2 from a driving license image inputted from an image input part 1, and a character coordinate detection part 4 finds the character coordinates of the respective items; and a surname and given name separation part 5 separates a surname and given name item into a surname and a given name and a year/month/ day separation part 6 separates a date item into the name of the era, year, month, day, and issue number part (only issue area). A character image extraction part 7 segments the character images of respective characters and a general character recognition part 8 recognizes the characters of KANJI(Chinese character)-KANA(Japanese syllabary) mixed items of the surname, given name, the name of the era, permanent domicile, address, and public safety commissioner; and a number recognition part 9 recognizes the characters of numerical items of the year, month, and day, issue number, and license number, and the result is displayed at a display part 10.
    • 9. 发明专利
    • CHARACTER AND GRAPHIC RECOGNITION DEVICE
    • JPS6436386A
    • 1989-02-07
    • JP19292787
    • 1987-07-31
    • MATSUSHITA ELECTRIC IND CO LTD
    • TAKAKURA MINORUTOKURA TAKESHI
    • G06K9/62
    • PURPOSE:To remarkably reduce a quantity of calculation at a distance calculation part, by interrupting distance calculation between a reference pattern in calculating at a time when a calculation midway value exceeds the maximum value of a distance in an intermediate order buffer. CONSTITUTION:Only a certain number out of the results of the distance calculation between the feature of an input character or graphic and that of individual reference pattern is stored in an intermediate order buffer 4 stating from the result with the smallest distance. Consequently, the re-arranging operation of the distance in sequence of the smallest distance is enough to perform the rearrangement of a certain number in the intermediate order buffer 4, and a time required for the rearrangement can be reduced remarkably. Also, in the process of the distance calculation of the feature of the input character or graphic and that of individual reference pattern, the distance calculation between the reference pattern in calculating is interrupted when the calculation midway value exceeds the maximum value of the distance in the intermediate order buffer 4, that is, when the result is not registered in the intermediate order buffer 4 and it is recognized that no influence is given on a recognition result. In such a way, it is possible to reduce the quantity of calculation at the distance calculation part 3 remarkably.