FR2366639A1 - Dispositif de reconnaissance optique de caracteres - Google Patents

Dispositif de reconnaissance optique de caracteres

Info

Publication number
FR2366639A1
FR2366639A1 FR7729189A FR7729189A FR2366639A1 FR 2366639 A1 FR2366639 A1 FR 2366639A1 FR 7729189 A FR7729189 A FR 7729189A FR 7729189 A FR7729189 A FR 7729189A FR 2366639 A1 FR2366639 A1 FR 2366639A1
Authority
FR
France
Prior art keywords
character
recognition device
optical character
character recognition
possible probability
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.)
Granted
Application number
FR7729189A
Other languages
English (en)
Other versions
FR2366639B1 (fr
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of FR2366639A1 publication Critical patent/FR2366639A1/fr
Application granted granted Critical
Publication of FR2366639B1 publication Critical patent/FR2366639B1/fr
Granted 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
    • G06V30/14—Image acquisition
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • 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
    • G06V30/19—Recognition using electronic means
    • G06V30/196—Recognition using electronic means using sequential comparisons of the image signals with a plurality of references
    • 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)
  • Character Input (AREA)
  • Character Discrimination (AREA)

Abstract

L'invention concerne un dispositif de reconnaissance optique de caractères. Un caractère analysé est enregistré sous forme d'une matrice correspondante en mémoire dont les coordonnées sont ensuite modifiées pour centrer le caractère. La reconnaissance de la forme du caractère est ensuite effectuée par un groupe de discriminants de Boole qui sont choisis pour obtenir la plus forte probabilité possible de réponses et la plus faible probabilité possible de non réponse. La fidélité d'impression et les fautes d'enregistrement sont filtrées par une combinaison OU de points d'essai. L'invention s'applique notamment à la transmission des textes dactylographiés par fac-similé
FR7729189A 1976-10-01 1977-09-28 Dispositif de reconnaissance optique de caracteres Granted FR2366639A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/728,666 US4034343A (en) 1976-10-01 1976-10-01 Optical character recognition system

Publications (2)

Publication Number Publication Date
FR2366639A1 true FR2366639A1 (fr) 1978-04-28
FR2366639B1 FR2366639B1 (fr) 1984-01-13

Family

ID=24927807

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729189A Granted FR2366639A1 (fr) 1976-10-01 1977-09-28 Dispositif de reconnaissance optique de caracteres

Country Status (9)

Country Link
US (1) US4034343A (fr)
JP (1) JPS5344128A (fr)
BE (1) BE859252A (fr)
CA (1) CA1098210A (fr)
DE (1) DE2740105A1 (fr)
FR (1) FR2366639A1 (fr)
GB (1) GB1584096A (fr)
NL (1) NL7710705A (fr)
SU (1) SU648144A3 (fr)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122443A (en) * 1977-06-24 1978-10-24 Scan Optics, Inc. Character position detector
US4163212A (en) * 1977-09-08 1979-07-31 Excellon Industries Pattern recognition system
US4135148A (en) * 1978-06-07 1979-01-16 Recognition Equipment Incorporated Character presence detector
DE2936667A1 (de) * 1978-09-12 1980-03-20 Canon Kk Kopiergeraet
US4204193A (en) * 1978-11-03 1980-05-20 International Business Machines Corporation Adaptive alignment for pattern recognition system
SE422714B (sv) * 1979-01-16 1982-03-22 Ibm Svenska Ab Anordning med styrdator for optisk teckenlosning, vilken styrdator bl a bereknar startpunkter for identifiering av ett tecken
EP0020832A1 (fr) * 1979-06-26 1981-01-07 Excellon Industries Système de reconnaissance de formes et procédé utilisant ce système
US4376932A (en) * 1980-06-30 1983-03-15 International Business Machines Corporation Multi-registration in character recognition
US4377803A (en) * 1980-07-02 1983-03-22 International Business Machines Corporation Algorithm for the segmentation of printed fixed pitch documents
JPS57191784A (en) * 1981-05-20 1982-11-25 Toshiba Corp Picture data processing system
FR2513779B1 (fr) * 1981-09-25 1986-07-25 Sopelem Dispositif automatique d'analyse statistique d'un objet
US4499595A (en) * 1981-10-01 1985-02-12 General Electric Co. System and method for pattern recognition
CA1197927A (fr) * 1981-10-01 1985-12-10 Richard G. Van Tyne Systeme et materiel de traitement de documents
JPS58139296A (ja) * 1981-11-03 1983-08-18 デラル・システムズ・リミテイド 紙葉分類装置
US4541115A (en) * 1983-02-08 1985-09-10 Pattern Processing Technologies, Inc. Pattern processing system
CA1318977C (fr) * 1987-07-22 1993-06-08 Kazuhito Hori Systeme de reconnaissance d'images
JP2659807B2 (ja) * 1989-01-26 1997-09-30 万鎔工業株式会社 直接製錬方法
US5119441A (en) * 1989-03-28 1992-06-02 Ricoh Company, Ltd. Optical character recognition apparatus and method using masks operation
US5274474A (en) * 1991-01-23 1993-12-28 Randolph-Rand Corporation Integrated telefacsimile and character communication system with standard and high speed modes
US6683697B1 (en) * 1991-03-20 2004-01-27 Millenium L.P. Information processing methodology
US5258855A (en) * 1991-03-20 1993-11-02 System X, L. P. Information processing methodology
US5488719A (en) * 1991-12-30 1996-01-30 Xerox Corporation System for categorizing character strings using acceptability and category information contained in ending substrings
US5465156A (en) * 1992-03-30 1995-11-07 Ricoh Company, Ltd. Facsimile machine having printer unit and interface
JPH07506207A (ja) * 1993-02-23 1995-07-06 ゼロックス コーポレイション 文字認識におけるストリングのカテゴライズ
US5801842A (en) * 1994-12-27 1998-09-01 International Patent Holdings Ltd. Telefacsimile module connectable to telefacsimile machines for transmitting data in standard or high speed modes
US6023534A (en) * 1997-08-04 2000-02-08 Xerox Corporation Method of extracting image data from an area generated with a halftone pattern
CN101401059B (zh) * 2006-03-10 2012-08-15 吉田健治 信息处理装置的输入处理***
US9152617B2 (en) * 2010-03-11 2015-10-06 A2iA S.A. System and method for processing objects
CN103530598B (zh) * 2013-03-08 2017-02-08 Tcl集团股份有限公司 一种台标识别方法及***
US9245181B2 (en) 2013-07-22 2016-01-26 Xerox Corporation Method and system for resolution conversion of textual content or magnetic ink character recognition (MICR) content

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496542A (en) * 1966-10-27 1970-02-17 Control Data Corp Multifont character reading machine
US3947817A (en) * 1974-01-07 1976-03-30 Recognition Equipment Incorporated Hand operated optical character recognition wand
US3992697A (en) * 1974-12-27 1976-11-16 Scan-Data Corporation Character recognition system utilizing feature extraction

Also Published As

Publication number Publication date
FR2366639B1 (fr) 1984-01-13
GB1584096A (en) 1981-02-04
NL7710705A (nl) 1978-04-04
US4034343A (en) 1977-07-05
SU648144A3 (ru) 1979-02-15
BE859252A (fr) 1978-01-16
DE2740105A1 (de) 1978-04-06
JPS5344128A (en) 1978-04-20
CA1098210A (fr) 1981-03-24

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