DE69618262D1 - Bilderverarbeitungsgerät und -verfahren - Google Patents

Bilderverarbeitungsgerät und -verfahren

Info

Publication number: DE69618262D1
Authority: DE; Germany
Prior art keywords: image processing; processing device; image; processing
Prior art date: 1995-02-10
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

DE69618262T

Other languages

English (en)

Other versions

DE69618262T2 (de

Inventor

Takeshi Makita

Osamu Yamada

Hiroshi Mori

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.)

Canon Inc

Original Assignee

Canon 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.)

1995-02-10

Filing date

1996-02-09

Publication date

2002-02-07

1995-02-10 Priority claimed from JP02290095A external-priority patent/JP3733155B2/ja

1995-02-10 Priority claimed from JP07022895A external-priority patent/JP3106080B2/ja

1995-02-10 Priority claimed from JP02289995A external-priority patent/JP3733154B2/ja

1996-02-09 Application filed by Canon Inc filed Critical Canon Inc

2002-02-07 Publication of DE69618262D1 publication Critical patent/DE69618262D1/de

2002-08-08 Application granted granted Critical

2002-08-08 Publication of DE69618262T2 publication Critical patent/DE69618262T2/de

2016-02-10 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
- H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original
- 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

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
Computer Vision & Pattern Recognition (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Theoretical Computer Science (AREA)
Character Input (AREA)
Facsimile Image Signal Circuits (AREA)

DE69618262T 1995-02-10 1996-02-09 Bilderverarbeitungsgerät und -verfahren Expired - Lifetime DE69618262T2 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
JP02290095A JP3733155B2 (ja)	1995-02-10	1995-02-10	画像処理装置及びその方法
JP07022895A JP3106080B2 (ja)	1995-02-10	1995-02-10	画像処理装置及びその方法
JP02289995A JP3733154B2 (ja)	1995-02-10	1995-02-10	画像処理装置及びその方法

Publications (2)

Publication Number	Publication Date
DE69618262D1 true DE69618262D1 (de)	2002-02-07
DE69618262T2 DE69618262T2 (de)	2002-08-08

Family

ID=27284010

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69618262T Expired - Lifetime DE69618262T2 (de)	1995-02-10	1996-02-09	Bilderverarbeitungsgerät und -verfahren

Country Status (3)

Country	Link
US (1)	US5920655A (de)
EP (1)	EP0731599B1 (de)
DE (1)	DE69618262T2 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6269186B1 (en) *	1996-12-20	2001-07-31	Canon Kabushiki Kaisha	Image processing apparatus and method
JP3472094B2 (ja) *	1997-08-21	2003-12-02	シャープ株式会社	領域判定装置
JP2000036033A (ja) *	1998-07-21	2000-02-02	Toshiba Eng Co Ltd	明暗検査装置および明暗検査方法
JP4018310B2 (ja) *	1999-04-21	2007-12-05	株式会社リコー	画像二値化装置、画像撮像装置、画像二値化方法、画像撮像方法およびその方法の各工程としてコンピュータを機能させるためのプログラムを記録したコンピュータ読取可能な記録媒体
US6738496B1 (en) *	1999-11-01	2004-05-18	Lockheed Martin Corporation	Real time binarization of gray images
FR2802921B1 (fr) *	1999-12-24	2002-08-23	Inst Francais Du Petrole	Production d'isobutene de haute purete et de propylene a partir de coupes d'hydrocarbures a quatre atomes de carbone
JP3717357B2 (ja) *	2000-01-07	2005-11-16	理想科学工業株式会社	２値化閾値算出方法および装置
JP4189506B2 (ja) *	2000-06-09	2008-12-03	コニカミノルタビジネステクノロジーズ株式会社	画像処理のための装置、方法及び記録媒体
DE60138073D1 (de)	2000-07-12	2009-05-07	Canon Kk	Bildverarbeitungsverfahren und Bildverarbeitungsvorrichtung
JP4366011B2 (ja) *	2000-12-21	2009-11-18	キヤノン株式会社	文書処理装置及び方法
US6909803B2 (en) *	2000-12-22	2005-06-21	Canon Kabushiki Kaisha	Text color detection for copier image processing
JP4596219B2 (ja) *	2001-06-25	2010-12-08	ソニー株式会社	画像処理装置および方法、記録媒体、並びにプログラム
JP4008428B2 (ja) *	2004-04-26	2007-11-14	富士通株式会社	画像圧縮方法
US7715656B2 (en) *	2004-09-28	2010-05-11	Qualcomm Incorporated	Magnification and pinching of two-dimensional images
JP4646797B2 (ja) *	2005-02-01	2011-03-09	キヤノン株式会社	画像処理装置及びその制御方法、プログラム
US7734092B2 (en) *	2006-03-07	2010-06-08	Ancestry.Com Operations Inc.	Multiple image input for optical character recognition processing systems and methods
US8189917B2 (en) *	2008-09-25	2012-05-29	Sharp Laboratories Of America, Inc.	Methods and systems for locating text in a digital image
JP5208043B2 (ja) *	2009-04-16	2013-06-12	キヤノン株式会社	画像処理装置、画像処理方法及びプログラム
US8611662B2 (en)	2011-11-21	2013-12-17	Nokia Corporation	Text detection using multi-layer connected components with histograms
JP6303332B2 (ja) *	2013-08-28	2018-04-04	富士通株式会社	画像処理装置、画像処理方法および画像処理プログラム
JP5992567B1 (ja) *	2015-03-20	2016-09-14	株式会社Pfu	日付識別装置
WO2017009910A1 (ja) *	2015-07-10	2017-01-19	楽天株式会社	電子書籍表示装置、電子書籍表示方法、及びプログラム
US9563961B1 (en)	2016-01-19	2017-02-07	Xerox Corporation	Method and system for image processing

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6066575A (ja) *	1983-09-22	1985-04-16	Canon Inc	画像処理装置
US4701807A (en) *	1983-09-22	1987-10-20	Canon Kabushiki Kaisha	Method and apparatus for processing an image
JPS63211974A (ja) *	1987-02-27	1988-09-05	Toshiba Corp	画像処理装置
US5091963A (en) *	1988-05-02	1992-02-25	The Standard Oil Company	Method and apparatus for inspecting surfaces for contrast variations
JP2744619B2 (ja) *	1988-06-28	1998-04-28	富士通株式会社	画像処理装置
US5097520A (en) *	1989-01-20	1992-03-17	Ricoh Company, Ltd.	Method of obtaining optimum threshold values
US4918543A (en) *	1989-01-24	1990-04-17	Eastman Kodak Company	Apparatus for thresholding an image signal
JPH03131173A (ja) *	1989-10-17	1991-06-04	Canon Inc	画像処理方式
JP2712863B2 (ja) *	1991-03-12	1998-02-16	国際電信電話株式会社	疑似階調画像の階層的符号化方式
JPH04306970A (ja) *	1991-04-04	1992-10-29	Canon Inc	画像処理方法及び装置
JP3313447B2 (ja) *	1993-03-19	2002-08-12	株式会社リコー	画像処理装置

1996
- 1996-02-07 US US08/597,871 patent/US5920655A/en not_active Expired - Lifetime
- 1996-02-09 DE DE69618262T patent/DE69618262T2/de not_active Expired - Lifetime
- 1996-02-09 EP EP96300909A patent/EP0731599B1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0731599A3 (de)	1997-09-17
EP0731599B1 (de)	2002-01-02
US5920655A (en)	1999-07-06
EP0731599A2 (de)	1996-09-11
DE69618262T2 (de)	2002-08-08

Publication	Publication Date	Title
DE69624055D1 (de)	2002-11-07	Bildverarbeitungsgerät sowie -verfahren
DE69631945D1 (de)	2004-04-29	Bildverarbeitungsgerät und-verfahren
DE69622501D1 (de)	2002-08-29	Bildverarbeitungsvorrichtung und -verfahren
DE69526792D1 (de)	2002-06-27	Bildverarbeitungsgerät und -verfahren
BR9603888A (pt)	1997-10-07	Método de processamento de imagem e dispositivo de processamento de imagem
DE69519504D1 (de)	2001-01-04	Bildverarbeitungsverfahren und -vorrichtung
DE69532016D1 (de)	2003-12-04	Bildverarbeitungsgerät und -verfahren
DE69524357D1 (de)	2002-01-17	Bildverarbeitungsvorrichtung und -verfahren
DE69522386D1 (de)	2001-10-04	Bildverarbeitungsgerät und -verfahren
DE69519196D1 (de)	2000-11-30	Bildverarbeitungsgerät und -verfahren
DE69634867D1 (de)	2005-07-28	Bildverarbeitungsgerät und -verfahren
DE69633259D1 (de)	2004-10-07	Bildverarbeitungsverfahren und -vorrichtung
DE69514143D1 (de)	2000-02-03	Bildverarbeitungsvorrichtung und -verfahren
DE69524899D1 (de)	2002-02-14	Bildverarbeitungsverfahren und -gerät
DE69636911D1 (de)	2007-03-29	Bildverarbeitungsverfahren und -Vorrichtung
DE69528299D1 (de)	2002-10-31	Bildverarbeitungsvorrichtung und -verfahren
DE69531583D1 (de)	2003-10-02	Bildverarbeitungsverfahren und -gerät
DE69516734D1 (de)	2000-06-15	Bildverarbeitungsverfahren und -gerät
DE69717897D1 (de)	2003-01-30	Bildverarbeitungsverfahren und -vorrichtung
DE69521550D1 (de)	2001-08-09	Bildverarbeitungsverfahren und -vorrichtung
DE69618262D1 (de)	2002-02-07	Bilderverarbeitungsgerät und -verfahren
DE69626156D1 (de)	2003-03-20	Bildverarbeitungsverfahren und -vorrichtung
DE69627090D1 (de)	2003-05-08	Bildverarbeitungsverfahren und -gerät
DE69631948D1 (de)	2004-04-29	Bildverarbeitungsgerät und -verfahren
DE69525318D1 (de)	2002-03-21	Bildverarbeitungsvorrichtung und -verfahren

Legal Events

Date	Code	Title	Description
2003-02-06	8364	No opposition during term of opposition