JPS57136285A - Character recognizing system - Google Patents

Character recognizing system

Info

Publication number
JPS57136285A
JPS57136285A JP56022006A JP2200681A JPS57136285A JP S57136285 A JPS57136285 A JP S57136285A JP 56022006 A JP56022006 A JP 56022006A JP 2200681 A JP2200681 A JP 2200681A JP S57136285 A JPS57136285 A JP S57136285A
Authority
JP
Japan
Prior art keywords
pattern
memory
video information
collation
dictionary
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.)
Pending
Application number
JP56022006A
Other languages
Japanese (ja)
Inventor
Eiichiro Yamamoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56022006A priority Critical patent/JPS57136285A/en
Publication of JPS57136285A publication Critical patent/JPS57136285A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
    • G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
    • G06V10/7515—Shifting the patterns to accommodate for positional errors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Evolutionary Computation (AREA)
  • Computing Systems (AREA)
  • Databases & Information Systems (AREA)
  • Artificial Intelligence (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Character Discrimination (AREA)

Abstract

PURPOSE:To improve the recognition factor of a pattern, by adding a rotating means for input video information of the characters to be recognized to a character recognizer and accordingly carrying out also the collation of a rotary pattern along with the collation of a feature pattern when the collation is carried out for a dictionary pattern. CONSTITUTION:The size of an input character is shaped when necessary by a preprocessing circuit 1 and stored in a video memory 2. A rotating means 9 for video information is connected to the memory 2, and X and Y counters 6 and 7 plus an address conversion table 8 are provided to the means 9. An address is supplied to the memory 2 to give the rotation to the video information by the reading timing signal and the rotational angle indication signal. The feature pattern of the video information is extracted by a feature extracting circuit 3, and at the same time a rotating feature pattern is extracted to be collated with a dictionary pattern given from a dictionary memory 4 through a collating circuit 5. Thus the recognition factor is increased for the input character.
JP56022006A 1981-02-17 1981-02-17 Character recognizing system Pending JPS57136285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56022006A JPS57136285A (en) 1981-02-17 1981-02-17 Character recognizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56022006A JPS57136285A (en) 1981-02-17 1981-02-17 Character recognizing system

Publications (1)

Publication Number Publication Date
JPS57136285A true JPS57136285A (en) 1982-08-23

Family

ID=12070913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56022006A Pending JPS57136285A (en) 1981-02-17 1981-02-17 Character recognizing system

Country Status (1)

Country Link
JP (1) JPS57136285A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62166479A (en) * 1986-01-20 1987-07-22 Ricoh Co Ltd Recognizing method for visiting card
JPS63184182A (en) * 1987-01-27 1988-07-29 Toshiba Corp Character input device
JPS63237184A (en) * 1987-03-25 1988-10-03 Matsushita Electric Ind Co Ltd Character recognizing method
JPH01177179A (en) * 1988-01-06 1989-07-13 Toshiba Corp Character string reader
JPH01183796A (en) * 1988-01-18 1989-07-21 Toshiba Corp Character recognizing device
JPH05159103A (en) * 1991-12-06 1993-06-25 Nippon Telegr & Teleph Corp <Ntt> Character recognition/communication system
EP0592775A2 (en) * 1992-10-13 1994-04-20 Hewlett-Packard Company Pixel image enhancement employing a reduced template memory store

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471946A (en) * 1977-11-19 1979-06-08 Fuji Electric Co Ltd Pattern normalizing unit and its use

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5471946A (en) * 1977-11-19 1979-06-08 Fuji Electric Co Ltd Pattern normalizing unit and its use

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62166479A (en) * 1986-01-20 1987-07-22 Ricoh Co Ltd Recognizing method for visiting card
JPS63184182A (en) * 1987-01-27 1988-07-29 Toshiba Corp Character input device
JPH0572629B2 (en) * 1987-01-27 1993-10-12 Toshiba Kk
JPS63237184A (en) * 1987-03-25 1988-10-03 Matsushita Electric Ind Co Ltd Character recognizing method
JPH01177179A (en) * 1988-01-06 1989-07-13 Toshiba Corp Character string reader
JPH01183796A (en) * 1988-01-18 1989-07-21 Toshiba Corp Character recognizing device
JPH05159103A (en) * 1991-12-06 1993-06-25 Nippon Telegr & Teleph Corp <Ntt> Character recognition/communication system
EP0592775A2 (en) * 1992-10-13 1994-04-20 Hewlett-Packard Company Pixel image enhancement employing a reduced template memory store
EP0592775A3 (en) * 1992-10-13 1994-08-31 Hewlett Packard Co

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