DE3482144D1 - Bildverduennungsverfahren. - Google Patents

Bildverduennungsverfahren.

Info

Publication number
DE3482144D1
DE3482144D1 DE8484306170T DE3482144T DE3482144D1 DE 3482144 D1 DE3482144 D1 DE 3482144D1 DE 8484306170 T DE8484306170 T DE 8484306170T DE 3482144 T DE3482144 T DE 3482144T DE 3482144 D1 DE3482144 D1 DE 3482144D1
Authority
DE
Germany
Prior art keywords
thinning method
image thinning
image
thinning
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 - Fee Related
Application number
DE8484306170T
Other languages
English (en)
Inventor
Jose Pastor
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.)
Pitney Bowes Inc
Original Assignee
Pitney Bowes 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 Pitney Bowes Inc filed Critical Pitney Bowes Inc
Application granted granted Critical
Publication of DE3482144D1 publication Critical patent/DE3482144D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06V30/16—Image preprocessing
    • G06V30/168—Smoothing or thinning of the pattern; Skeletonisation
    • 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)
  • Image Processing (AREA)
  • Character Input (AREA)
DE8484306170T 1983-09-15 1984-09-10 Bildverduennungsverfahren. Expired - Fee Related DE3482144D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53225583A 1983-09-15 1983-09-15

Publications (1)

Publication Number Publication Date
DE3482144D1 true DE3482144D1 (de) 1990-06-07

Family

ID=24121011

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484306170T Expired - Fee Related DE3482144D1 (de) 1983-09-15 1984-09-10 Bildverduennungsverfahren.

Country Status (4)

Country Link
EP (1) EP0138373B1 (de)
JP (1) JPS6086684A (de)
CA (1) CA1210870A (de)
DE (1) DE3482144D1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574357A (en) * 1984-02-21 1986-03-04 Pitney Bowes Inc. Real time character thinning system
JPH02110679A (ja) * 1988-10-20 1990-04-23 Ricoh Co Ltd 画像処理装置
US5054094A (en) * 1990-05-07 1991-10-01 Eastman Kodak Company Rotationally impervious feature extraction for optical character recognition
US5647027A (en) * 1994-10-28 1997-07-08 Lucent Technologies Inc. Method of image enhancement using convolution kernels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250166B (de) * 1962-05-21 1967-09-14 International Business Machines Corporation Armonk, NY (V St A) Vorrichtung zur maschinellen Zeichen erkennung
GB1262080A (en) * 1968-11-30 1972-02-02 Int Computers Ltd Improvements in or relating to character recognition apparatus
US4162482A (en) * 1977-12-07 1979-07-24 Burroughs Corporation Pre-processing and feature extraction system for character recognition

Also Published As

Publication number Publication date
EP0138373B1 (de) 1990-05-02
EP0138373A3 (en) 1986-10-01
EP0138373A2 (de) 1985-04-24
JPS6086684A (ja) 1985-05-16
CA1210870A (en) 1986-09-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee