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    • 3. 发明专利
    • WORD READING SYSTEM
    • JPS63136291A
    • 1988-06-08
    • JP28215186
    • 1986-11-28
    • NIPPON TELEGRAPH & TELEPHONE
    • NAKABAYASHI KIYOSHIMATSUO HIROSHISATO TETSUJITSUDA NOBUO
    • G06K9/72G06K9/62
    • PURPOSE:To obtain a correct candidate word even for an input pattern of character string which partly includes isolated or contacting character patterns, by providing a word comparison means comparing the character string with a candidate word and a classification character dictionary. CONSTITUTION:The input character string pattern 1 is made into a character string combined with candidate characters through a character segment means 2, a character recognition means 3 and a character string generation means 4. A word retrieval means 5 retrieves a word dictionary 6 to recognize the character string. While referring to a character that may be entered separately and an isolated character dictionary 12 storing the character, the means 5 collates the character string with the word in the dictionary 6 to find the disagreement of the characters and the drift of character positions, and selects a candidate word. The word comparison means 9 compares the character string with the candidate word. If they are dissident, the means 9 specifies the part that is mistakenly segmented out of the pattern, decides the way how to divide or aggregate the character, and instructs the character segment means 2. Thus the word pattern including the isolated or contacting character patterns can be read out.
    • 4. 发明专利
    • PATTERN COLLATING DEVICE
    • JPS6315383A
    • 1988-01-22
    • JP15800986
    • 1986-07-07
    • NIPPON TELEGRAPH & TELEPHONE
    • MATSUO HIROSHITSUDA NOBUOHAGITA NORIHIRO
    • G06K9/62G06K9/64G06T7/00
    • PURPOSE:To execute the processing at a high speed by using a category table which has been constituted by classifying in advance a category into groups at every element of a feature vector, and a group selection table, and executing a cumulative calculation of a decided value only with regard to some category names which are selected at every vector element. CONSTITUTION:A group selection table 2 is retrieved by an element value of an input feature vector, a group name of a group having a positive decided value except '0' and its decided value are read out, and subsequently, a category name is read out by retrieving a category table 1 by the group name which has been read out. A decided value cumulation processing means 4 cumulates the decided value onto an evaluated value table 4a in accordance with the category name which is read out by a selection processing means 3, and calculates an evaluated value. In case of a sort processing, in a sort processing means 5, the category name corresponding to the evaluated value given from the decided value cumulation processing means 4 is rearranged in a candidate category table in order from a larger one, and a candidate category extending from the first candidate category whose evaluated value and cumulated value are maximum to a prescribed rank order is outputted.
    • 6. 发明专利
    • PATTERN COLLATING PROCESSING SYSTEM
    • JPS6226588A
    • 1987-02-04
    • JP16576485
    • 1985-07-29
    • NIPPON TELEGRAPH & TELEPHONE
    • TAKAHASHI YUKIOTSUDA NOBUO
    • G06K9/68G06K9/50G06K9/62
    • PURPOSE:To decrease the total calculating quantity of a similarity calculation and to make a processing highly speedy when the large classification processing in the hierarchical recognition method is executed by selecting a part of the standard pattern by the complicated degree of an input pattern and executing the similarity calculation. CONSTITUTION:A cumulative circuit 6 adds the number of the cumulative character line classified into four directions and holds the result at a register 7. Namely, at the register 7, the total cumulative value (complicated degree) of the number of the character line of the input character is stored. When the complicated degree C of the input character is obtained, the access area of a dictionary memory is set corresponding to the complicated degree C by a table 8. An address control circuit 11 outputs successively the address of the dictionary memory 12 from registers 9 and 10. When the address is given from the address control circuit 11, the simillrity at the section of a characteristic vector in a characteristic pattern memory 13 is calculated by a large classification processing circuit 13.