GB1311030A - Apparatus for recognising graphic symbols - Google Patents

Apparatus for recognising graphic symbols

Info

Publication number
GB1311030A
GB1311030A GB992971*[A GB992971A GB1311030A GB 1311030 A GB1311030 A GB 1311030A GB 992971 A GB992971 A GB 992971A GB 1311030 A GB1311030 A GB 1311030A
Authority
GB
United Kingdom
Prior art keywords
character
motif
segments
motifs
white
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
GB992971*[A
Other languages
English (en)
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.)
Olivetti SpA
Original Assignee
Olivetti SpA
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 Olivetti SpA filed Critical Olivetti SpA
Publication of GB1311030A publication Critical patent/GB1311030A/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
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/1801—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections
    • G06V30/18076—Detecting partial patterns, e.g. edges or contours, or configurations, e.g. loops, corners, strokes or intersections by analysing connectivity, e.g. edge linking, connected component analysis or slices
    • 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)
  • Tests Of Electronic Circuits (AREA)
  • Character Input (AREA)
  • Image Analysis (AREA)
GB992971*[A 1970-04-16 1971-04-19 Apparatus for recognising graphic symbols Expired GB1311030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6828470 1970-04-16

Publications (1)

Publication Number Publication Date
GB1311030A true GB1311030A (en) 1973-03-21

Family

ID=11308828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB992971*[A Expired GB1311030A (en) 1970-04-16 1971-04-19 Apparatus for recognising graphic symbols

Country Status (4)

Country Link
US (1) US3860909A (enExample)
DE (1) DE2119555A1 (enExample)
FR (1) FR2089790A5 (enExample)
GB (1) GB1311030A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191359A (en) * 1981-11-27 1987-12-09 Thomson Csf A recursive method for identifying isotropic zones in a video image; a device for detecting movement and noise in a sequence of images

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242028A (en) * 1975-09-29 1977-04-01 Fujitsu Ltd Letter recognition system
US4105998A (en) * 1976-03-30 1978-08-08 Fujitsu Limited Pattern recognition processing system
GB2152658A (en) * 1984-01-09 1985-08-07 Philips Electronic Associated Object sorting system
US5164996A (en) * 1986-04-07 1992-11-17 Jose Pastor Optical character recognition by detecting geo features
US4745633A (en) * 1986-08-18 1988-05-17 Peter Waksman Optical image encoding and comparing using scan autocorrelation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3293604A (en) * 1963-01-25 1966-12-20 Rca Corp Character recognition system utilizing asynchronous zoning of characters
US3271761A (en) * 1963-11-29 1966-09-06 Ibm Curvature and shape detection
US3274551A (en) * 1963-12-23 1966-09-20 Ibm Pattern recognition by contour sequences
GB1171627A (en) * 1966-10-07 1969-11-26 Post Office Improvements in or relating to Character Recognition Machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191359A (en) * 1981-11-27 1987-12-09 Thomson Csf A recursive method for identifying isotropic zones in a video image; a device for detecting movement and noise in a sequence of images

Also Published As

Publication number Publication date
FR2089790A5 (enExample) 1972-01-07
US3860909A (en) 1975-01-14
DE2119555A1 (de) 1971-10-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees