ES2146205T3 - Procedimiento para derivar caracteristicas de un caracter en un sistema de reconocimiento de caracteres. - Google Patents

Procedimiento para derivar caracteristicas de un caracter en un sistema de reconocimiento de caracteres.

Info

Publication number
ES2146205T3
ES2146205T3 ES92204106T ES92204106T ES2146205T3 ES 2146205 T3 ES2146205 T3 ES 2146205T3 ES 92204106 T ES92204106 T ES 92204106T ES 92204106 T ES92204106 T ES 92204106T ES 2146205 T3 ES2146205 T3 ES 2146205T3
Authority
ES
Spain
Prior art keywords
character
point
appended
recognition system
description
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 - Lifetime
Application number
ES92204106T
Other languages
English (en)
Inventor
Robert Wilcke
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.)
Koninklijke KPN NV
Original Assignee
Koninklijke KPN NV
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 Koninklijke KPN NV filed Critical Koninklijke KPN NV
Application granted granted Critical
Publication of ES2146205T3 publication Critical patent/ES2146205T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G06V30/18—Extraction of features or characteristics of the image
    • G06V30/182—Extraction of features or characteristics of the image by coding the contour of the pattern
    • 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 Discrimination (AREA)
  • Image Analysis (AREA)
  • Character Input (AREA)

Abstract

UN METODO PARA DEDUCIR CARACTERISTICAS DE CARACTERES EN UN SISTEMA DE RECONOCIMIENTO DE CARACTERES PARA EL RECONOCIMIENTO DE CARACTERES TALES COMO LETRAS Y NUMEROS, Y UN SISTEMA DE RECONOCIMIENTO DE CARACTERES EN EL QUE EL METODO SE APLICA. DESPUES DE DEDUCIR UNA DESCRIPCION DE CARACTERES DESDE EL MODELO DE IMAGEN REGISTRADO DE UN CARACTER A RECONOCER, SE AÑADE UN PUNTO UNICO PI DE LA CITADA DESCRIPCION DEL CARACTER, MEDIANTE UNA TRANSFORMACION DE DISTANCIAS A CADA PUNTO RI DE UN SUBCONJUNTO R = {RI/I = 1,--,N} DE PUNTOS DE REFERENCIA PRESELECCIONADOS EN EL PLANO DEL CITADO MODELO DE IMAGEN. DESPUES SE DETERMINAN LOS VALORES DE CARACTERISTICAS DE UNA O MAS CARACTERISTICAS QUE TIENE LA DESCRIPCION DEL CARACTER EN CADA PUNTO UNICO AÑADIDO. SI LA DESCRIPCION DEL CARACTER ES UNA DESCRIPCION DE CONTORNO, EL PUNTO UNICO PI, AÑADIDO A CADA PUNTO RI DE REFERENCIA, ES ESE PUNTO DONDE EL PUNTO RI DE REFERENCIA TIENE LA DISTANCIA D(RI) MAS CORTA RESPECTO AL CONTORNO DEL CARACTER, Y LAS CARACTERISTICASSELECCIONADAS DEL CARACTER SON LA DISTANCIA MAS CORTA D(RI) Y LA DIRECCION H(RI) DEL CONTORNO EN EL PUNTO PI AÑADIDO.
ES92204106T 1992-12-30 1992-12-30 Procedimiento para derivar caracteristicas de un caracter en un sistema de reconocimiento de caracteres. Expired - Lifetime ES2146205T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92204106A EP0604687B1 (en) 1992-12-30 1992-12-30 Method for deriving character features in a character recognition system

Publications (1)

Publication Number Publication Date
ES2146205T3 true ES2146205T3 (es) 2000-08-01

Family

ID=8211184

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92204106T Expired - Lifetime ES2146205T3 (es) 1992-12-30 1992-12-30 Procedimiento para derivar caracteristicas de un caracter en un sistema de reconocimiento de caracteres.

Country Status (9)

Country Link
US (1) US6240209B1 (es)
EP (1) EP0604687B1 (es)
JP (1) JPH076209A (es)
AT (1) ATE191980T1 (es)
DE (1) DE69230940T2 (es)
DK (1) DK0604687T3 (es)
ES (1) ES2146205T3 (es)
GR (1) GR3033926T3 (es)
PT (1) PT604687E (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7058221B1 (en) * 2000-07-07 2006-06-06 Tani Electronics Industry Co., Ltd. Method of recognizing object based on pattern matching and medium for recording computer program having same
US20020057837A1 (en) * 2000-08-14 2002-05-16 Tim Wilkinson Portable operating environment for information devices
WO2003023696A1 (en) 2001-09-12 2003-03-20 Auburn University System and method of handwritten character recognition
US10156501B2 (en) 2001-11-05 2018-12-18 Life Technologies Corporation Automated microdissection instrument for determining a location of a laser beam projection on a worksurface area
US8715955B2 (en) 2004-09-09 2014-05-06 Life Technologies Corporation Laser microdissection apparatus and method
US8722357B2 (en) * 2001-11-05 2014-05-13 Life Technologies Corporation Automated microdissection instrument
CA2375355A1 (en) * 2002-03-11 2003-09-11 Neo Systems Inc. Character recognition system and method
CA2500805A1 (en) * 2002-09-13 2004-03-25 Arcturus Bioscience, Inc. Interactive and automated tissue image analysis
SG109996A1 (en) * 2002-10-28 2005-04-28 Nanyang Polytechnic Method and apparatus for optical character recognition
DE10337831A1 (de) 2003-08-18 2005-03-24 Sick Ag Verfahren zur optischen Erkennung von alphanumerischen Zeichen
WO2009073950A1 (en) * 2007-12-13 2009-06-18 Keigo Izuka Camera system and method for amalgamating images to create an omni-focused image
ATE546011T1 (de) * 2009-09-09 2012-03-15 European Central Bank Verfahren zur erzeugung eines sicherheitsbildes auf zwei ebenen für banknoten
RU2664411C2 (ru) * 2016-12-01 2018-08-17 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" Способ обработки последовательности изображений для распознавания воздушных объектов
US10438098B2 (en) * 2017-05-19 2019-10-08 Hand Held Products, Inc. High-speed OCR decode using depleted centerlines

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH591726A5 (es) 1973-07-30 1977-09-30 Nederlanden Staat
JPS51118333A (en) 1975-04-11 1976-10-18 Hitachi Ltd Pattern recognition system
JPS5927380A (ja) * 1982-08-02 1984-02-13 Nippon Telegr & Teleph Corp <Ntt> 特徴抽出処理方式
JPS5930179A (ja) * 1982-08-10 1984-02-17 Agency Of Ind Science & Technol パタ−ンの線分近似方式
US4628532A (en) * 1983-07-14 1986-12-09 Scan Optics, Inc. Alphanumeric handprint recognition
JPS6079485A (ja) 1983-10-06 1985-05-07 Sharp Corp 手書き文字認識処理装置
JPS6282486A (ja) 1985-10-08 1987-04-15 Hitachi Ltd オンライン手書き図形認識装置
JP3014097B2 (ja) 1987-02-20 2000-02-28 株式会社日立製作所 輪郭追跡方法及びシステム
DE3815869A1 (de) 1987-05-08 1988-11-17 Ricoh Kk Verfahren zum extrahieren von merkmalsmengen eines zeichens
JP2982150B2 (ja) * 1990-08-28 1999-11-22 キヤノン株式会社 文字パターン処理方法及び装置
EP0514688A2 (en) 1991-05-21 1992-11-25 International Business Machines Corporation Generalized shape autocorrelation for shape acquisition and recognition
US5245674A (en) 1991-07-30 1993-09-14 Xerox Corporation Image processing using distance as a function of direction
JP3361124B2 (ja) * 1991-07-30 2003-01-07 ゼロックス・コーポレーション テキストを含む２次元画像上での画像処理方法と画像処理装置
US5416851A (en) * 1991-07-30 1995-05-16 Xerox Corporation Image analysis based on location sampling
JPH07262360A (ja) 1994-02-07 1995-10-13 Canon Inc 画像処理装置及び方法

Also Published As

Publication number Publication date
EP0604687A1 (en) 1994-07-06
PT604687E (pt) 2000-09-29
ATE191980T1 (de) 2000-05-15
EP0604687B1 (en) 2000-04-19
US6240209B1 (en) 2001-05-29
DE69230940D1 (de) 2000-05-25
DK0604687T3 (da) 2000-10-23
GR3033926T3 (en) 2000-11-30
JPH076209A (ja) 1995-01-10
DE69230940T2 (de) 2000-10-19

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