JPS57164376A - Character pattern classifying and processing device - Google Patents

Character pattern classifying and processing device

Info

Publication number
JPS57164376A
JPS57164376A JP56046659A JP4665981A JPS57164376A JP S57164376 A JPS57164376 A JP S57164376A JP 56046659 A JP56046659 A JP 56046659A JP 4665981 A JP4665981 A JP 4665981A JP S57164376 A JPS57164376 A JP S57164376A
Authority
JP
Japan
Prior art keywords
character
character pattern
coordinate axes
contribution
processor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56046659A
Other languages
Japanese (ja)
Other versions
JPS634229B2 (en
Inventor
Norihiro Hagita
Isao Masuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP56046659A priority Critical patent/JPS57164376A/en
Publication of JPS57164376A publication Critical patent/JPS57164376A/en
Publication of JPS634229B2 publication Critical patent/JPS634229B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/18—Extraction of features or characteristics of the image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)

Abstract

PURPOSE:To classify hand-written character patterns efficiently, by obtaining information concerning directional components of respective character lines and components-classified character densities of character patterns and counting these information in every directional components of character lines. CONSTITUTION:A binary hand-written character pattern is stored in a storage circuit 1 and is subjected to the normalizing processing for position and size in a normalizing processor 2. This normalized character pattern is framed by a framing processor 3 and is subjected to the smoothing processing in a smoothing processor 4 and is given to a character pattern feature extracting device 5. In the device 5, such operation is performed that a degree of contribution to direction of each black point of the inputted character pattern. The character pattern which is labeled with the degree of contribution to direction by this operation is observed from directions of plural coordinate axes of two coordinate axes and is scanned in directions orthogonal to these coordinate axes in each position on these coordinate axes, and values of degrees of contribution to direction of traversing character lines are counted for every directional components. A character pattern classifying device 6 generates a feature table on a basis of this count value and classifies the character pattern on the basis of this table.
JP56046659A 1981-03-30 1981-03-30 Character pattern classifying and processing device Granted JPS57164376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046659A JPS57164376A (en) 1981-03-30 1981-03-30 Character pattern classifying and processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046659A JPS57164376A (en) 1981-03-30 1981-03-30 Character pattern classifying and processing device

Publications (2)

Publication Number Publication Date
JPS57164376A true JPS57164376A (en) 1982-10-08
JPS634229B2 JPS634229B2 (en) 1988-01-28

Family

ID=12753451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046659A Granted JPS57164376A (en) 1981-03-30 1981-03-30 Character pattern classifying and processing device

Country Status (1)

Country Link
JP (1) JPS57164376A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6451593A (en) * 1987-08-22 1989-02-27 Alps Electric Co Ltd Character recognizing method
JP2010108113A (en) * 2008-10-29 2010-05-13 Hitachi Computer Peripherals Co Ltd Character recognition device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6451593A (en) * 1987-08-22 1989-02-27 Alps Electric Co Ltd Character recognizing method
JP2010108113A (en) * 2008-10-29 2010-05-13 Hitachi Computer Peripherals Co Ltd Character recognition device

Also Published As

Publication number Publication date
JPS634229B2 (en) 1988-01-28

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