GB1391520A - Optical character recognition system - Google Patents

Optical character recognition system

Info

Publication number
GB1391520A
GB1391520A GB3354072A GB3354072A GB1391520A GB 1391520 A GB1391520 A GB 1391520A GB 3354072 A GB3354072 A GB 3354072A GB 3354072 A GB3354072 A GB 3354072A GB 1391520 A GB1391520 A GB 1391520A
Authority
GB
United Kingdom
Prior art keywords
cells
character
output
cell
height
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.)
Expired
Application number
GB3354072A
Other languages
English (en)
Inventor
Chester Joseph Borowski Jr
Dale Rodney Duvall
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.)
Recognition Equipment Inc
Original Assignee
Recognition Equipment Inc
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 Recognition Equipment Inc filed Critical Recognition Equipment Inc
Publication of GB1391520A publication Critical patent/GB1391520A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06V30/16—Image preprocessing
    • G06V30/166—Normalisation of pattern dimensions
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 Discrimination (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)
GB3354072A 1971-07-28 1972-07-18 Optical character recognition system Expired GB1391520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16681171A 1971-07-28 1971-07-28

Publications (1)

Publication Number Publication Date
GB1391520A true GB1391520A (en) 1975-04-23

Family

ID=22604786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3354072A Expired GB1391520A (en) 1971-07-28 1972-07-18 Optical character recognition system

Country Status (9)

Country Link
US (1) US3784981A (cg-RX-API-DMAC7.html)
JP (1) JPS5759591B1 (cg-RX-API-DMAC7.html)
CA (1) CA998177A (cg-RX-API-DMAC7.html)
DE (1) DE2236382C3 (cg-RX-API-DMAC7.html)
FR (1) FR2147667A5 (cg-RX-API-DMAC7.html)
GB (1) GB1391520A (cg-RX-API-DMAC7.html)
IT (1) IT961738B (cg-RX-API-DMAC7.html)
NL (1) NL7210244A (cg-RX-API-DMAC7.html)
SE (1) SE387184B (cg-RX-API-DMAC7.html)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128830A (en) * 1977-09-26 1978-12-05 International Business Machines Corporation Apparatus for providing a compensation signal for individual light sensors arranged in a predetermined relation
US4499595A (en) * 1981-10-01 1985-02-12 General Electric Co. System and method for pattern recognition
US4587621A (en) * 1982-03-08 1986-05-06 The Mead Corporation Device for electrical variable magnification of document image
US4532602A (en) * 1982-03-08 1985-07-30 The Mead Corporation Device for electrical variable magnification of document image
US4521862A (en) * 1982-03-29 1985-06-04 General Electric Company Serialization of elongated members
US4573200A (en) * 1982-12-27 1986-02-25 International Business Machines Corporation Video normalization for hand print recognition
DE3347478A1 (de) * 1983-12-29 1985-07-11 Computer Gesellschaft Konstanz Mbh, 7750 Konstanz Verfahren und schaltungsanordnung zum verkleinern von schriftzeichen
US4700400A (en) * 1985-10-10 1987-10-13 The Palantir Corporation Feature extraction technique for use in a pattern recognition system
US5170442A (en) * 1987-09-08 1992-12-08 Seiko Epson Corporation Character pattern transforming system
US4977602A (en) * 1989-11-20 1990-12-11 Eastman Kodak Company Character normalization using an elliptical sampling window for optical character recognition
JP3216983B2 (ja) * 1996-02-27 2001-10-09 インターナショナル・ビジネス・マシーンズ・コーポレーション 文字認識装置および文字認識方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173126A (en) * 1961-11-16 1965-03-09 Control Data Corp Reading machine with core matrix
US3196398A (en) * 1962-05-21 1965-07-20 Ibm Pattern recognition preprocessing techniques
US3189873A (en) * 1962-08-09 1965-06-15 Control Data Corp Scanning pattern normalizer
US3303466A (en) * 1963-03-05 1967-02-07 Control Data Corp Character separating reading machine
US3289164A (en) * 1964-04-29 1966-11-29 Control Data Corp Character normalizing reading machine

Also Published As

Publication number Publication date
SE387184B (sv) 1976-08-30
CA998177A (en) 1976-10-05
FR2147667A5 (cg-RX-API-DMAC7.html) 1973-03-09
IT961738B (it) 1973-12-10
DE2236382C3 (de) 1981-04-16
NL7210244A (cg-RX-API-DMAC7.html) 1973-01-30
DE2236382B2 (de) 1980-08-28
JPS5759591B1 (cg-RX-API-DMAC7.html) 1982-12-15
US3784981A (en) 1974-01-08
DE2236382A1 (de) 1973-02-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee