FR2074013A5 - - Google Patents

Info

Publication number
FR2074013A5
FR2074013A5 FR7045806A FR7045806A FR2074013A5 FR 2074013 A5 FR2074013 A5 FR 2074013A5 FR 7045806 A FR7045806 A FR 7045806A FR 7045806 A FR7045806 A FR 7045806A FR 2074013 A5 FR2074013 A5 FR 2074013A5
Authority
FR
France
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
FR7045806A
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
Application granted granted Critical
Publication of FR2074013A5 publication Critical patent/FR2074013A5/fr
Expired 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
    • G06V10/20—Image preprocessing
    • 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
    • G06V30/162—Quantising the image signal
    • 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
    • G06V30/20—Combination of acquisition, preprocessing or recognition functions
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Character Discrimination (AREA)
  • Character Input (AREA)
  • Image Input (AREA)
  • Image Processing (AREA)
FR7045806A 1969-12-24 1970-12-18 Expired FR2074013A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5450069 1969-12-24

Publications (1)

Publication Number Publication Date
FR2074013A5 true FR2074013A5 (fr) 1971-10-01

Family

ID=11287346

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7045806A Expired FR2074013A5 (fr) 1969-12-24 1970-12-18

Country Status (6)

Country Link
US (1) US3715724A (fr)
JP (1) JPS4923054B1 (fr)
DE (1) DE2063597A1 (fr)
FR (1) FR2074013A5 (fr)
GB (1) GB1311029A (fr)
SU (1) SU382311A3 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918049A (en) * 1972-12-26 1975-11-04 Ibm Thresholder for analog signals
US3973239A (en) * 1973-10-17 1976-08-03 Hitachi, Ltd. Pattern preliminary processing system
JPS523655U (fr) * 1975-06-23 1977-01-11
FR2349894A1 (fr) * 1976-04-26 1977-11-25 Honeywell Bull Soc Ind Perfectionnements aux systemes de reconnaissance de caracteres imprimes
DE2706080C2 (de) * 1977-02-12 1986-10-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur adaptiven Quantisierung von Transformationskoeffizienten eines Bildes und Anordnung zum Durchführen des Verfahrens
FR2435871A1 (fr) * 1978-09-08 1980-04-04 Thomson Csf Dispositif a seuil permettant de distinguer le blanc du noir sur un document, et emetteur de telecopie comportant un tel dispositif
DE3112628C2 (de) * 1981-03-30 1987-02-26 Siemens AG, 1000 Berlin und 8000 München Verfahren und Anodrnung zum Einstellen des Diskriminators einer Bildauswerteeinrichtung
EP0082236B1 (fr) * 1981-12-23 1986-03-12 International Business Machines Corporation Méthode de reconnaissance de caractères pour lecteur optique de documents
JPS60254279A (ja) * 1984-05-31 1985-12-14 Fuji Electric Co Ltd ２値化しきい値の決定方法
DE3650496T2 (de) * 1985-04-17 1996-10-31 Hitachi Ltd Bildverarbeitungsgerät
US4742557A (en) * 1985-11-08 1988-05-03 Ncr Corporation Adaptive character extraction method and system
US4965679A (en) * 1989-02-27 1990-10-23 Eastman Kodak Company Method for electronically duplicating film images while maintaining a high degree of image quality
US4903141A (en) * 1989-02-27 1990-02-20 Eastman Kodak Company Apparatus for electronically duplicating film images while maintaining a high degree of image quality
US4987604A (en) * 1989-06-02 1991-01-22 Delco Electronics Corporation Second opinion method of pattern recognition error reduction
US4995091A (en) * 1989-10-25 1991-02-19 Mazda Motor Manufacturing (Usa) Corporation Method of and apparatus for detecting objects in an assembly line
US5054094A (en) * 1990-05-07 1991-10-01 Eastman Kodak Company Rotationally impervious feature extraction for optical character recognition
ATE169754T1 (de) * 1994-06-07 1998-08-15 United Parcel Service Inc Verfahren und gerät zu dekodierung von zweidimensionalen zeichen im raumbereich
ATE185211T1 (de) * 1995-01-31 1999-10-15 United Parcel Service Inc Verfahren und gerät zum trennen des vordergrunds und hintergrunds in textenthaltenden bildern
US6728391B1 (en) 1999-12-03 2004-04-27 United Parcel Service Of America, Inc. Multi-resolution label locator
JP2013123812A (ja) * 2011-12-13 2013-06-24 Canon Inc 検査装置、検査方法、コンピュータプログラム

Also Published As

Publication number Publication date
DE2063597A1 (de) 1971-07-01
US3715724A (en) 1973-02-06
SU382311A3 (fr) 1973-05-22
JPS4923054B1 (fr) 1974-06-13
GB1311029A (en) 1973-03-21

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Legal Events

Date Code Title Description
ST Notification of lapse