DE69517364T2 - Bildlesegerät und -verfahren, Weisspegelkorrekturverfahren und Weisspegelerzeugungsverfahren - Google Patents
Bildlesegerät und -verfahren, Weisspegelkorrekturverfahren und WeisspegelerzeugungsverfahrenInfo
- Publication number
- DE69517364T2 DE69517364T2 DE69517364T DE69517364T DE69517364T2 DE 69517364 T2 DE69517364 T2 DE 69517364T2 DE 69517364 T DE69517364 T DE 69517364T DE 69517364 T DE69517364 T DE 69517364T DE 69517364 T2 DE69517364 T2 DE 69517364T2
- Authority
- DE
- Germany
- Prior art keywords
- white level
- image reader
- level correction
- level generation
- correction method
- 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 - Fee Related
Links
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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00684—Object of the detection
- H04N1/00708—Size or dimensions
- H04N1/00716—Thickness
-
- 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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
-
- 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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00729—Detection means
- H04N1/00734—Optical detectors
- H04N1/00737—Optical detectors using the scanning elements as detectors
-
- 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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00742—Detection methods
- H04N1/00745—Detecting the leading or trailing ends of a moving sheet
-
- 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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00742—Detection methods
- H04N1/00748—Detecting edges, e.g. of a stationary sheet
-
- 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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00742—Detection methods
- H04N1/0075—Detecting a change in reflectivity
- H04N1/00753—Detecting a change in reflectivity of a sheet relative to a particular backgroud
-
- 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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00763—Action taken as a result of detection
- H04N1/00769—Comparing, e.g. with threshold
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Image Input (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6085068A JPH07298007A (ja) | 1994-04-22 | 1994-04-22 | 画像読取装置及び画像読取方法及び白レベル補正方法及び白レベル生成方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69517364D1 DE69517364D1 (de) | 2000-07-13 |
DE69517364T2 true DE69517364T2 (de) | 2000-10-26 |
Family
ID=13848318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69517364T Expired - Fee Related DE69517364T2 (de) | 1994-04-22 | 1995-03-23 | Bildlesegerät und -verfahren, Weisspegelkorrekturverfahren und Weisspegelerzeugungsverfahren |
Country Status (4)
Country | Link |
---|---|
US (1) | US6301019B1 (de) |
EP (1) | EP0679010B1 (de) |
JP (1) | JPH07298007A (de) |
DE (1) | DE69517364T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10338728B4 (de) * | 2002-12-13 | 2008-01-03 | Hewlett-Packard Development Co., L.P., Houston | Vorrichtung und Verfahren zum Erfassen übergroßer Bilder für Bilderzeugungsgeräte |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3337993B2 (ja) | 1998-12-25 | 2002-10-28 | 京セラミタ株式会社 | シートスルー原稿読取装置 |
FR2797367B1 (fr) * | 1999-08-06 | 2001-09-07 | Sagem | Appareil de traitement de donnees a scanner |
JP4224198B2 (ja) * | 2000-10-27 | 2009-02-12 | 株式会社リコー | 画像読取装置および複写機 |
US6822763B2 (en) * | 2000-12-20 | 2004-11-23 | Xerox Corporation | Multiple function calibration for document scanner |
US6839155B2 (en) * | 2001-01-16 | 2005-01-04 | Xerox Corporation | Locating edges of a scanned document |
US6744536B2 (en) * | 2001-01-22 | 2004-06-01 | Xerox Corporation | Document scanner having replaceable backing and automatic selection of registration parameters |
TW569608B (en) * | 2002-06-20 | 2004-01-01 | Avision Inc | Method for acquiring document images with a sheet-fed scanner |
JP2004104239A (ja) * | 2002-09-05 | 2004-04-02 | Ricoh Co Ltd | 画像読み取り装置及び画像形成装置 |
US7663786B2 (en) * | 2003-09-29 | 2010-02-16 | Samsung Electronics Co., Ltd. | Image-forming apparatus and method of controlling operations in automatic document feeder mode thereof |
US20060001919A1 (en) * | 2004-06-30 | 2006-01-05 | Owens Brian K | Auto-document feed scanning apparatus and method |
JP4457976B2 (ja) | 2004-07-27 | 2010-04-28 | ブラザー工業株式会社 | 画像読取装置及び画像読取方法 |
JP2008047952A (ja) * | 2006-08-10 | 2008-02-28 | Kyocera Mita Corp | 画像形成装置 |
US7339183B1 (en) * | 2007-01-31 | 2008-03-04 | Joseph Hecker | X-ray conversion method |
EP1988702B1 (de) * | 2007-04-30 | 2016-01-06 | Brother Kogyo Kabushiki Kaisha | Bildlesevorrichtung |
JP5367960B2 (ja) * | 2007-06-29 | 2013-12-11 | キヤノン電子株式会社 | 画像読取装置 |
JP4978815B2 (ja) * | 2009-10-30 | 2012-07-18 | ブラザー工業株式会社 | 画像読取装置、画像形成装置及び画像読取制御プログラム |
JP7404777B2 (ja) * | 2019-10-29 | 2023-12-26 | 京セラドキュメントソリューションズ株式会社 | 画像読取装置およびそれを備えた画像形成装置 |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3976833A (en) | 1974-11-21 | 1976-08-24 | Xerox Corporation | Amplifier back-ground control apparatus for use in a document scanning system |
JPS5622424A (en) * | 1979-08-01 | 1981-03-03 | Konishiroku Photo Ind Co Ltd | Original size detecting unit of copying machine |
JPS5650668A (en) | 1979-09-29 | 1981-05-07 | Sharp Corp | Correcting system for reading output |
US4314159A (en) | 1980-05-30 | 1982-02-02 | The Mead Corporation | Document scanner |
JPS57104370A (en) * | 1980-12-20 | 1982-06-29 | Ricoh Co Ltd | Shading correcting device |
US4490852A (en) * | 1981-11-17 | 1984-12-25 | Ncr Corporation | Image capturing apparatus |
JPS58125954A (ja) * | 1982-01-22 | 1983-07-27 | Ricoh Co Ltd | 画像読取光学装置 |
JPS58177071A (ja) * | 1982-04-09 | 1983-10-17 | Fuji Xerox Co Ltd | シエ−デイング補正装置 |
JPS58202665A (ja) * | 1982-05-21 | 1983-11-25 | Canon Inc | フアクシミリ装置 |
JPS59229967A (ja) | 1983-06-03 | 1984-12-24 | Fuji Xerox Co Ltd | 読取装置 |
JPS6085673A (ja) * | 1983-10-17 | 1985-05-15 | Canon Inc | 画像読取装置 |
JPS6091760A (ja) * | 1983-10-26 | 1985-05-23 | Canon Inc | 画像記録装置 |
JPH0626423B2 (ja) | 1983-12-08 | 1994-04-06 | キヤノン株式会社 | 原稿読取り装置 |
JPS6132869A (ja) * | 1984-07-26 | 1986-02-15 | Konishiroku Photo Ind Co Ltd | 静電記録装置 |
JPS6278963A (ja) * | 1985-10-02 | 1987-04-11 | Matsushita Graphic Commun Syst Inc | フアクシミリ装置 |
JPS62293384A (ja) * | 1986-06-11 | 1987-12-19 | Toshiba Corp | 画像入力装置 |
JPH06101791B2 (ja) * | 1986-08-15 | 1994-12-12 | コニカ株式会社 | ノイズの影響を防止したシエ−デイング補正方法及びその装置 |
JPS63314071A (ja) | 1987-06-17 | 1988-12-22 | Dainippon Screen Mfg Co Ltd | 画像読取装置の2値化処理方法 |
US5267053A (en) * | 1988-10-27 | 1993-11-30 | Eastman Kodak Company | Automatic reference control for image scanners |
US4903144A (en) * | 1988-10-27 | 1990-02-20 | Eastman Kodak Company | Automatic D.C. offset control for image scanners |
JP3162358B2 (ja) | 1989-04-30 | 2001-04-25 | 株式会社リコー | デジタル複写機 |
JPH0379161A (ja) * | 1989-08-23 | 1991-04-04 | Seiko Instr Inc | 原稿読み取り装置 |
JPH07120094B2 (ja) | 1989-09-26 | 1995-12-20 | 富士ゼロックス株式会社 | 原稿読み取り方法、原稿読み取り装置及び複写方法 |
US5133022A (en) * | 1991-02-06 | 1992-07-21 | Recognition Equipment Incorporated | Normalizing correlator for video processing |
JPH0583480A (ja) * | 1991-09-20 | 1993-04-02 | Pfu Ltd | 原稿読取り装置 |
US5625718A (en) * | 1992-02-25 | 1997-04-29 | Pfu Limited | White level setting system for an image scanner |
US5568270A (en) * | 1992-12-09 | 1996-10-22 | Fuji Photo Film Co., Ltd. | Image reading apparatus which varies reading time according to image density |
JPH0736233A (ja) * | 1993-07-16 | 1995-02-07 | Canon Inc | 画像形成装置 |
-
1994
- 1994-04-22 JP JP6085068A patent/JPH07298007A/ja active Pending
-
1995
- 1995-03-22 US US08/408,292 patent/US6301019B1/en not_active Expired - Fee Related
- 1995-03-23 EP EP95104315A patent/EP0679010B1/de not_active Expired - Lifetime
- 1995-03-23 DE DE69517364T patent/DE69517364T2/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10338728B4 (de) * | 2002-12-13 | 2008-01-03 | Hewlett-Packard Development Co., L.P., Houston | Vorrichtung und Verfahren zum Erfassen übergroßer Bilder für Bilderzeugungsgeräte |
Also Published As
Publication number | Publication date |
---|---|
EP0679010A3 (de) | 1996-12-27 |
JPH07298007A (ja) | 1995-11-10 |
EP0679010B1 (de) | 2000-06-07 |
DE69517364D1 (de) | 2000-07-13 |
EP0679010A2 (de) | 1995-10-25 |
US6301019B1 (en) | 2001-10-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69517364T2 (de) | Bildlesegerät und -verfahren, Weisspegelkorrekturverfahren und Weisspegelerzeugungsverfahren | |
FR2719763B1 (fr) | Implant vertébral. | |
DE69730562D1 (de) | Bildlesegerät | |
DE69724523D1 (de) | Bildlesegerät | |
DE69524542D1 (de) | Farbkorrekturverfahren und -vorrichtung | |
ATA190894A (de) | Implantat | |
DE69721607D1 (de) | Bildherstellungsverfahren | |
FR2718635B1 (fr) | Prothèse cervicale. | |
DE69532929D1 (de) | Bildherstellungsverfahren | |
DE69719859D1 (de) | Bildverarbeitungsverfahren | |
DE9402695U1 (de) | Implantat | |
DE69604699D1 (de) | Röntgenstrahl-abtaster | |
DE69519278T2 (de) | Bildlesegerät | |
DE69533812D1 (de) | Bildabtaster mit Bildkorrekturfunktion | |
DE69706569D1 (de) | Bildlesegerät | |
DE69525921D1 (de) | Abtastspeichervorrichtung und Fehlerkorrekturverfahren | |
DE69510881T2 (de) | Kurvenkorrektur | |
DE69734852D1 (de) | Mikrofilmabtaster und dazugehöriges Steuerverfahren | |
DE69511136D1 (de) | Pixelkorrektur und Glättungsverfahren | |
DE69723664D1 (de) | Bildlesegerät | |
DE69736479D1 (de) | Bildsensorplättchen, herstellungsverfahren und bildsensor | |
DE69739685D1 (de) | Trickeffektvorrichtung fur trickeffekte, bildverabeitungsmethode und objektbilderzeugungsmethode | |
DE69834984D1 (de) | Bildlesegerät und Einstellverfahren dafür | |
FR2720625B3 (fr) | Implant cotyloïdien. | |
FR2753556B1 (fr) | Methode d'authentification de cartes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |