GB1424551A - Method of and device for skeletonizing characters - Google Patents

Method of and device for skeletonizing characters

Info

Publication number
GB1424551A
GB1424551A GB383473A GB383473A GB1424551A GB 1424551 A GB1424551 A GB 1424551A GB 383473 A GB383473 A GB 383473A GB 383473 A GB383473 A GB 383473A GB 1424551 A GB1424551 A GB 1424551A
Authority
GB
United Kingdom
Prior art keywords
character
points
point
indispensability
retained
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
GB383473A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1424551A publication Critical patent/GB1424551A/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
    • G06V30/168—Smoothing or thinning of the pattern; Skeletonisation
    • 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 Input (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Character Discrimination (AREA)
GB383473A 1972-01-28 1973-01-25 Method of and device for skeletonizing characters Expired GB1424551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7201225A NL7201225A (https=) 1972-01-28 1972-01-28

Publications (1)

Publication Number Publication Date
GB1424551A true GB1424551A (en) 1976-02-11

Family

ID=19815249

Family Applications (1)

Application Number Title Priority Date Filing Date
GB383473A Expired GB1424551A (en) 1972-01-28 1973-01-25 Method of and device for skeletonizing characters

Country Status (6)

Country Link
US (1) US3940737A (https=)
JP (1) JPS4885046A (https=)
DE (1) DE2303485A1 (https=)
FR (1) FR2169644A5 (https=)
GB (1) GB1424551A (https=)
NL (1) NL7201225A (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1487920A (en) * 1973-12-21 1977-10-05 Mullard Ltd Character thinning apparatus
US4115760A (en) * 1974-11-18 1978-09-19 Fujitsu Limited Figure pre-processing device
US4003024A (en) * 1975-10-14 1977-01-11 Rockwell International Corporation Two-dimensional binary data enhancement system
US4291339A (en) * 1977-05-16 1981-09-22 Ricoh Company, Ltd. Facsimile transceiver
GB2030823B (en) * 1978-10-02 1982-11-03 Ibm Image data manipulation apparatus
JPS61500077A (ja) * 1983-08-17 1986-01-16 エアリツク　ロバ−ト 貯留岩の細孔集合の分析方法
US4783751A (en) * 1983-08-17 1988-11-08 University Of South Carolina Analysis of pore complexes
US4574357A (en) 1984-02-21 1986-03-04 Pitney Bowes Inc. Real time character thinning system
US4853967A (en) * 1984-06-29 1989-08-01 International Business Machines Corporation Method for automatic optical inspection analysis of integrated circuits
JPS6180374A (ja) * 1984-09-21 1986-04-23 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 可変走査領域による細線化処理の方法及び装置
FR2603101B1 (fr) * 1986-08-22 1988-11-25 Univ Nantes Procede pour l'analyse par couches pseudo-concentriques d'une surface delimitee par une courbe non parametrique avec reference a une surface subdivisee en aires unitaires discretes et son application a la mesure approchee de la longueur d'une courbe
US5050229A (en) * 1990-06-05 1991-09-17 Eastman Kodak Company Method and apparatus for thinning alphanumeric characters for optical character recognition
US5574803A (en) * 1991-08-02 1996-11-12 Eastman Kodak Company Character thinning using emergent behavior of populations of competitive locally independent processes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL134348C (https=) * 1958-10-07
DE1250166B (de) * 1962-05-21 1967-09-14 International Business Machines Corporation Armonk, NY (V St A) Vorrichtung zur maschinellen Zeichen erkennung
US3706071A (en) * 1970-06-22 1972-12-12 Information Int Inc Binary image processor
NL7016539A (https=) * 1970-11-12 1972-05-16
US3766520A (en) * 1971-11-10 1973-10-16 Regonition Equipment Inc Character reader with handprint capability

Also Published As

Publication number Publication date
JPS4885046A (https=) 1973-11-12
FR2169644A5 (https=) 1973-09-07
US3940737A (en) 1976-02-24
DE2303485A1 (de) 1973-08-02
NL7201225A (https=) 1973-07-31

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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