DE68928703D1 - Buchstabenerkennungsvorrichtung - Google Patents

Buchstabenerkennungsvorrichtung

Info

Publication number
DE68928703D1
DE68928703D1 DE68928703T DE68928703T DE68928703D1 DE 68928703 D1 DE68928703 D1 DE 68928703D1 DE 68928703 T DE68928703 T DE 68928703T DE 68928703 T DE68928703 T DE 68928703T DE 68928703 D1 DE68928703 D1 DE 68928703D1
Authority
DE
Germany
Prior art keywords
recognition device
letter recognition
letter
recognition
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
DE68928703T
Other languages
English (en)
Other versions
DE68928703T2 (de
Inventor
Yutaka Katsuyama
Hiroshi Iwaki
Takafumi Edanami
Noriyuki Fukuyama
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE68928703D1 publication Critical patent/DE68928703D1/de
Application granted granted Critical
Publication of DE68928703T2 publication Critical patent/DE68928703T2/de
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
    • 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
    • G06V30/14—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
    • G06V30/16—Image preprocessing
    • G06V30/166—Normalisation of pattern dimensions
    • 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
    • G06V30/19—Recognition using electronic means
    • G06V30/192—Recognition using electronic means using simultaneous comparisons or correlations 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
DE68928703T 1988-07-20 1989-07-20 Buchstabenerkennungsvorrichtung Expired - Lifetime DE68928703T2 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP17915788 1988-07-20
JP17915888 1988-07-20
JP18604888 1988-07-26
JP28337988 1988-11-08
JP29564288 1988-11-21
JP33239388 1988-12-28
JP10084489 1989-04-20
PCT/JP1989/000728 WO1990001198A1 (en) 1988-07-20 1989-07-20 Character recognition apparatus

Publications (2)

Publication Number Publication Date
DE68928703D1 true DE68928703D1 (de) 1998-07-16
DE68928703T2 DE68928703T2 (de) 1998-12-10

Family

ID=27565644

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68928703T Expired - Lifetime DE68928703T2 (de) 1988-07-20 1989-07-20 Buchstabenerkennungsvorrichtung

Country Status (4)

Country Link
US (1) US5197107A (de)
EP (1) EP0381773B1 (de)
DE (1) DE68928703T2 (de)
WO (1) WO1990001198A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0471472B1 (de) * 1990-08-03 1998-04-22 Canon Kabushiki Kaisha Gerät und Verfahren zur Bildverarbeitung
US5926565A (en) * 1991-10-28 1999-07-20 Froessl; Horst Computer method for processing records with images and multiple fonts
JP3516269B2 (ja) * 1991-11-19 2004-04-05 ゼロックス コーポレイション 文書イメージの処理装置
US5903668A (en) * 1992-05-27 1999-05-11 Apple Computer, Inc. Method and apparatus for recognizing handwritten words
US5463696A (en) * 1992-05-27 1995-10-31 Apple Computer, Inc. Recognition system and method for user inputs to a computer system
NL9300310A (nl) * 1993-02-19 1994-09-16 Oce Nederland Bv Inrichting en werkwijze voor syntactische signaal-analyse.
US5710831A (en) * 1993-07-30 1998-01-20 Apple Computer, Inc. Method for correcting handwriting on a pen-based computer
EP0650136B1 (de) * 1993-10-22 2000-12-27 Canon Kabushiki Kaisha Auf einer Ungleichheitsfunktion basierendes Vergleichsverfahren und Vorrichtung zur beschleunigten OCR-Korrelation
JPH07152865A (ja) * 1993-11-30 1995-06-16 Canon Inc 情報認識装置及びその方法
US5465353A (en) * 1994-04-01 1995-11-07 Ricoh Company, Ltd. Image matching and retrieval by multi-access redundant hashing
JPH07288722A (ja) * 1994-04-15 1995-10-31 Canon Inc 撮像装置
JPH087033A (ja) * 1994-06-16 1996-01-12 Canon Inc 情報処理方法及び装置
JP3400151B2 (ja) * 1994-12-08 2003-04-28 株式会社東芝 文字列領域抽出装置および方法
US6104833A (en) 1996-01-09 2000-08-15 Fujitsu Limited Pattern recognizing apparatus and method
US6188790B1 (en) * 1996-02-29 2001-02-13 Tottori Sanyo Electric Ltd. Method and apparatus for pre-recognition character processing
JP3601658B2 (ja) * 1997-12-19 2004-12-15 富士通株式会社 文字列抽出装置及びパターン抽出装置
JP4338155B2 (ja) * 1998-06-12 2009-10-07 キヤノン株式会社 画像処理装置及びその方法、コンピュータ可読メモリ
US6397213B1 (en) * 1999-05-12 2002-05-28 Ricoh Company Ltd. Search and retrieval using document decomposition
EP1312038B1 (de) * 2000-07-28 2013-10-16 RAF Technology, Inc. Orthogonaltechnologie zur mehrzeiligen zeichenerkennung
JP5591578B2 (ja) * 2010-04-19 2014-09-17 日本電産サンキョー株式会社 文字列認識装置および文字列認識方法
US10402673B1 (en) 2018-10-04 2019-09-03 Capital One Services, Llc Systems and methods for digitized document image data spillage recovery
US11074473B1 (en) 2020-01-21 2021-07-27 Capital One Services, Llc Systems and methods for digitized document image text contouring

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259661A (en) * 1978-09-01 1981-03-31 Burroughs Corporation Apparatus and method for recognizing a pattern
DE3113555A1 (de) * 1981-04-03 1982-10-21 Siemens AG, 1000 Berlin und 8000 München Verfahren zum automatischen erkennen von weissbloecken sowie text-, graphik- und/oder graubildbereichen auf druckvorlagen
DE3280099D1 (de) * 1981-09-11 1990-03-08 Burroughs Corp Geometrische zeichenerkennung mit darstellung des skelettes und der strichbreite.
JPS5879300A (ja) * 1981-11-06 1983-05-13 日本電気株式会社 パタ−ン距離計算方式
JPS59136875A (ja) * 1983-01-26 1984-08-06 Fuji Electric Co Ltd パタ−ン識別装置
US4606069A (en) * 1983-06-10 1986-08-12 At&T Bell Laboratories Apparatus and method for compression of facsimile information by pattern matching
JPS60167070A (ja) * 1984-02-08 1985-08-30 Ricoh Co Ltd パタ−ン認識方法
JPS60230281A (ja) * 1984-04-27 1985-11-15 Fuji Electric Co Ltd 文字識別装置
JPS60246490A (ja) * 1984-05-21 1985-12-06 Agency Of Ind Science & Technol パタ−ン認識方式
JPS61163472A (ja) * 1985-01-14 1986-07-24 Omron Tateisi Electronics Co 文字認識装置
JPH0743755B2 (ja) * 1985-10-09 1995-05-15 日本電気株式会社 文字認識装置
JPS62119690A (ja) * 1985-11-20 1987-05-30 Nippon Telegr & Teleph Corp <Ntt> 文書画像領域分割装置
JPH0715703B2 (ja) * 1986-05-16 1995-02-22 富士電機株式会社 文字読取方式
US4837842A (en) * 1986-09-19 1989-06-06 Holt Arthur W Character and pattern recognition machine and method
JPS63129484A (ja) * 1986-11-19 1988-06-01 Matsushita Electric Ind Co Ltd 文字認識装置
JPH01183793A (ja) * 1988-01-18 1989-07-21 Toshiba Corp 文字認識装置

Also Published As

Publication number Publication date
EP0381773B1 (de) 1998-06-10
EP0381773A4 (en) 1993-05-19
US5197107A (en) 1993-03-23
EP0381773A1 (de) 1990-08-16
WO1990001198A1 (en) 1990-02-08
DE68928703T2 (de) 1998-12-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition