DE69818894D1 - Verfahren zur Korrektur des Neigungswinkels eines Dokumentes - Google Patents
Verfahren zur Korrektur des Neigungswinkels eines DokumentesInfo
- Publication number
- DE69818894D1 DE69818894D1 DE69818894T DE69818894T DE69818894D1 DE 69818894 D1 DE69818894 D1 DE 69818894D1 DE 69818894 T DE69818894 T DE 69818894T DE 69818894 T DE69818894 T DE 69818894T DE 69818894 D1 DE69818894 D1 DE 69818894D1
- Authority
- DE
- Germany
- Prior art keywords
- correcting
- inclination
- document
- angle
- 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
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
- H04N1/00721—Orientation
-
- 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
-
- 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
- H04N1/00742—Detection methods
- H04N1/00758—Detection methods using a prescan
-
- 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
- H04N1/00766—Storing data
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/047—Detection, control or error compensation of scanning velocity or position
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
- H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02406—Arrangements for positioning elements within a head
- H04N2201/02425—Self-adjusting arrangements, e.g. compensating for temperature fluctuations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/028—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up
- H04N2201/03—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up deleted
- H04N2201/031—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted for picture information pick-up deleted deleted
- H04N2201/03104—Integral pick-up heads, i.e. self-contained heads whose basic elements are a light source, a lens and a photodetector supported by a single-piece frame
- H04N2201/0315—Details of integral heads not otherwise provided for
- H04N2201/03162—Original guide plate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04729—Detection of scanning velocity or position in the main-scan direction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04731—Detection of scanning velocity or position in the sub-scan direction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04732—Detecting at infrequent intervals, e.g. once or twice per line for main-scan control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04737—Detection of scanning velocity or position by detecting the scanned medium directly, e.g. a leading edge
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area
- H04N2201/04787—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area by changing or controlling the addresses or values of pixels, e.g. in an array, in a memory, by interpolation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04789—Control or error compensation of scanning position or velocity in the main-scan direction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04791—Control or error compensation of scanning position or velocity in the sub-scan direction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Facsimile Scanning Arrangements (AREA)
- Image Processing (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08379497A JP3697828B2 (ja) | 1997-04-02 | 1997-04-02 | 原稿角度補正方法及び原稿角度補正装置 |
JP8379497 | 1997-04-02 | ||
JP13840297A JP3613748B2 (ja) | 1997-05-28 | 1997-05-28 | 画像読取装置 |
JP13840297 | 1997-05-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69818894D1 true DE69818894D1 (de) | 2003-11-20 |
DE69818894T2 DE69818894T2 (de) | 2004-05-19 |
Family
ID=26424837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69818894T Expired - Lifetime DE69818894T2 (de) | 1997-04-02 | 1998-03-31 | Verfahren zur Korrektur des Neigungswinkels eines Dokumentes |
Country Status (3)
Country | Link |
---|---|
US (1) | US6301022B1 (de) |
EP (1) | EP0869659B1 (de) |
DE (1) | DE69818894T2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3747643B2 (ja) * | 1998-08-07 | 2006-02-22 | コニカミノルタホールディングス株式会社 | 傾き補正装置及び画像読取装置 |
JP2000224393A (ja) * | 1999-01-29 | 2000-08-11 | Konica Corp | 画像読取装置及び複写装置 |
US6449397B1 (en) * | 1999-04-05 | 2002-09-10 | Mustek Systems Inc. | Image processing system for scanning a rectangular document |
EP1239659A1 (de) * | 2001-03-06 | 2002-09-11 | Imip Llc | Verfahren und Vorrichtung zur digitalen Herstellung eines Bilds |
CN1552155A (zh) * | 2001-09-07 | 2004-12-01 | �ʼҷ����ֵ��ӹɷ�����˾ | 具有照相机和图像透视校正并且可能具有旋转和交错校正的成像设备 |
US7457012B2 (en) * | 2001-11-09 | 2008-11-25 | Po-Hua Fang | Detecting the alignment of a document in an automatic document feeder |
US7058350B2 (en) * | 2002-01-16 | 2006-06-06 | Xerox Corporation | Copier or scanner platen cover with fluorescent coating |
JP2006272772A (ja) * | 2005-03-29 | 2006-10-12 | Brother Ind Ltd | 画像記録装置 |
JP4940585B2 (ja) * | 2005-07-04 | 2012-05-30 | 富士ゼロックス株式会社 | 画像処理装置およびその方法 |
JP4215087B2 (ja) * | 2006-09-27 | 2009-01-28 | コニカミノルタビジネステクノロジーズ株式会社 | 画像処理装置及び画像読取装置 |
JP5263715B2 (ja) * | 2008-06-26 | 2013-08-14 | 株式会社リコー | 画像読取装置、これを備えた画像形成装置 |
US8089494B2 (en) * | 2008-10-13 | 2012-01-03 | Hewlett-Packard Development Company, L.P. | Image rotation |
JP5820841B2 (ja) * | 2013-04-26 | 2015-11-24 | 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画像形成装置 |
US9363399B2 (en) * | 2014-03-03 | 2016-06-07 | Fuji Xerox Co., Ltd. | Image reading device and copier |
US9894227B2 (en) * | 2015-12-09 | 2018-02-13 | Ricoh Company, Ltd. | Information processing apparatus, information processing system, information processing method, and computer program product |
JP7363139B2 (ja) | 2019-07-10 | 2023-10-18 | 京セラドキュメントソリューションズ株式会社 | 画像形成装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58134368A (ja) | 1982-02-05 | 1983-08-10 | Ricoh Co Ltd | 文書画像処理装置 |
US4802229A (en) | 1983-04-12 | 1989-01-31 | Canon Kabushiki Kaisha | Image processing system |
FR2550360B1 (fr) * | 1983-05-23 | 1989-12-01 | Hitachi Ltd | Procede de traitement pour realiser la rotation d'une image |
JPS6157176A (ja) | 1984-08-29 | 1986-03-24 | Dainippon Screen Mfg Co Ltd | 倍率可変制御方法 |
JPS61199175A (ja) * | 1985-02-28 | 1986-09-03 | Mitsubishi Electric Corp | イメ−ジの任意角度回転方式 |
JPS61203781A (ja) | 1985-03-06 | 1986-09-09 | Nec Corp | 読み取り装置 |
JP2685548B2 (ja) | 1988-11-28 | 1997-12-03 | 株式会社日立製作所 | ディジタル画像データの回転方法およびその装置 |
JP2940960B2 (ja) | 1989-10-31 | 1999-08-25 | 株式会社日立製作所 | 画像の傾き検出方法および補正方法ならびに画像情報処理装置 |
US5191438A (en) * | 1989-12-12 | 1993-03-02 | Sharp Kabushiki Kaisha | Facsimile device with skew correction and text line direction detection |
JPH0437964A (ja) | 1990-06-01 | 1992-02-07 | Eastman Kodak Japan Kk | 文書読取装置 |
US5818976A (en) | 1993-10-25 | 1998-10-06 | Visioneer, Inc. | Method and apparatus for document skew and size/shape detection |
JP3542390B2 (ja) | 1995-01-18 | 2004-07-14 | キヤノン株式会社 | シート給送装置および画像読み取り装置 |
-
1998
- 1998-03-27 US US09/049,846 patent/US6301022B1/en not_active Expired - Lifetime
- 1998-03-31 DE DE69818894T patent/DE69818894T2/de not_active Expired - Lifetime
- 1998-03-31 EP EP98105835A patent/EP0869659B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69818894T2 (de) | 2004-05-19 |
EP0869659A3 (de) | 2000-05-03 |
US6301022B1 (en) | 2001-10-09 |
EP0869659A2 (de) | 1998-10-07 |
EP0869659B1 (de) | 2003-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |