IT8021997A0 - Apparecchiatura per determinare l'angolo ottimo di scansione per documenti stampati. - Google Patents
Apparecchiatura per determinare l'angolo ottimo di scansione per documenti stampati.Info
- Publication number
- IT8021997A0 IT8021997A0 IT8021997A IT2199780A IT8021997A0 IT 8021997 A0 IT8021997 A0 IT 8021997A0 IT 8021997 A IT8021997 A IT 8021997A IT 2199780 A IT2199780 A IT 2199780A IT 8021997 A0 IT8021997 A0 IT 8021997A0
- Authority
- IT
- Italy
- Prior art keywords
- determining
- equipment
- scanning angle
- printed documents
- optimal scanning
- Prior art date
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
-
- 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
- G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
- G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines
-
- 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
- H04N1/00702—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
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
- H04N1/00684—Object of the detection
- H04N1/00718—Skew
-
- 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
- H04N1/00785—Correcting the position of a sheet before scanning
-
- 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
-
- 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
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0432—Adjusting the orientation of the scanning elements relative to the scanned sheet, e.g. changing from longitudinal to lateral scanning
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)
- Facsimile Scanning Arrangements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH593979 | 1979-06-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8021997A0 true IT8021997A0 (it) | 1980-05-13 |
IT1148862B IT1148862B (it) | 1986-12-03 |
Family
ID=4301822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21997/80A IT1148862B (it) | 1979-06-26 | 1980-05-13 | Apparecchiatura per determinare l'angolo otimo di scansione per documenti stampati |
Country Status (5)
Country | Link |
---|---|
US (1) | US4338588A (it) |
EP (1) | EP0020897B1 (it) |
JP (1) | JPS6014552B2 (it) |
DE (1) | DE3065583D1 (it) |
IT (1) | IT1148862B (it) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4558461A (en) * | 1983-06-17 | 1985-12-10 | Litton Systems, Inc. | Text line bounding system |
US4723297A (en) * | 1984-09-27 | 1988-02-02 | Siemens Aktiengesellschaft | Method for automatic correction of character skew in the acquisition of a text original in the form of digital scan results |
JPS61166685A (ja) * | 1985-01-19 | 1986-07-28 | Sanyo Electric Co Ltd | 文字切出し方法 |
JPS61229174A (ja) * | 1985-04-03 | 1986-10-13 | Canon Inc | 画像入力装置 |
JPS61262982A (ja) * | 1985-05-17 | 1986-11-20 | Casio Comput Co Ltd | 画像情報認識装置 |
US4827529A (en) * | 1987-04-14 | 1989-05-02 | Nippon Sheet Glass Co., Ltd. | Lines and characters separation apparatus |
US4817169A (en) * | 1987-04-14 | 1989-03-28 | Nippon Sheet Glass Co., Ltd. | Page segmentor |
JPH0687597B2 (ja) * | 1988-02-17 | 1994-11-02 | 松下電器産業株式会社 | 遠隔制御装置 |
US5001766A (en) * | 1988-05-16 | 1991-03-19 | At&T Bell Laboratories | Apparatus and method for skew control of document images |
JP2596826B2 (ja) * | 1989-04-26 | 1997-04-02 | セイコープレシジョン株式会社 | 文字認識装置 |
US5187753A (en) * | 1989-12-08 | 1993-02-16 | Xerox Corporation | Method and apparatus for identification and correction of document skew |
US5245676A (en) * | 1989-12-21 | 1993-09-14 | Xerox Corporation | Determination of image skew angle from data including data in compressed form |
DE69130469T2 (de) * | 1990-08-03 | 1999-05-06 | Canon K.K., Tokio/Tokyo | Gerät und Verfahren zur Bildverarbeitung |
US6373997B1 (en) | 1991-07-30 | 2002-04-16 | Xerox Corporation | Coarse and fine skew measurement |
DE4318526C2 (de) * | 1992-06-10 | 1999-11-25 | Canon Kk | Bildeingabevorrichtung |
US5517587A (en) * | 1994-09-23 | 1996-05-14 | International Business Machines Corporation | Positioning method and apparatus for line scanned images |
US5898791A (en) * | 1997-08-26 | 1999-04-27 | The United States Of America As Represented By The Secretary Of The Navy | Spinning focal plane array camera particularly suited for real time pattern recognition |
US6285802B1 (en) | 1999-04-08 | 2001-09-04 | Litton Systems, Inc. | Rotational correction and duplicate image identification by fourier transform correlation |
IT1316845B1 (it) * | 1999-04-30 | 2003-05-12 | Pleva Gmbh | Procedimento e dispositivo per determinare l'allineamento diformazioni lineari in nastri a prevalente estensione superficiale, |
US6993205B1 (en) | 2000-04-12 | 2006-01-31 | International Business Machines Corporation | Automatic method of detection of incorrectly oriented text blocks using results from character recognition |
JP3802372B2 (ja) * | 2001-05-16 | 2006-07-26 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システム |
US7133573B2 (en) * | 2002-11-26 | 2006-11-07 | Eastman Kodak Company | Document skew accommodation |
US9621761B1 (en) | 2015-10-08 | 2017-04-11 | International Business Machines Corporation | Automatic correction of skewing of digital images |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3457422A (en) * | 1967-02-21 | 1969-07-22 | Ibm | Optical system adapted for rotation of an image to be scanned with reference to a scanning path |
US3617751A (en) * | 1969-08-18 | 1971-11-02 | Computervision Corp | Method and apparatus for article positioning utilizing an incremental article drive system and null transit counter |
NL7009520A (it) * | 1970-06-27 | 1971-12-29 | ||
US3701098A (en) * | 1971-06-15 | 1972-10-24 | Scanner | Device for machine reading of information without manipulation of the information carrier |
JPS5121529B1 (it) * | 1971-07-23 | 1976-07-03 | ||
US3774014A (en) * | 1972-03-20 | 1973-11-20 | Pitney Bowes Alpex | Printed code scanning system |
US3847346A (en) * | 1972-08-30 | 1974-11-12 | Scanner | Data field recognition and reading method and system |
US3820069A (en) * | 1972-12-26 | 1974-06-25 | Ibm | Electro-optical read system |
US3831146A (en) * | 1973-03-19 | 1974-08-20 | Ibm | Optimum scan angle determining means |
DE2443265A1 (de) * | 1974-09-10 | 1976-03-18 | Bbc Brown Boveri & Cie | Opto-elektronisches verfahren zum erkennen und positionieren eines objektes |
DE2443692C3 (de) * | 1974-09-12 | 1978-06-15 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Verfahren und Vorrichtung zur Messung des Steigungswinkels von mit einer Drehung versehenen Garnen |
DE2636906C3 (de) * | 1976-08-17 | 1983-12-29 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Verfahren zur Erzeugung eines Schaltsignals beim Durchgang eines Kontrastsprunges und Schaltungsanordnung zur Ausführung des Verfahrens |
US4105925A (en) * | 1977-03-14 | 1978-08-08 | General Motors Corporation | Optical object locator |
US4097750A (en) * | 1977-03-18 | 1978-06-27 | General Motors Corporation | Method of orienting objects using optically smeared images |
JPS54935A (en) * | 1977-06-06 | 1979-01-06 | Hitachi Ltd | Pattern detector |
GB1547119A (en) * | 1977-12-09 | 1979-06-06 | Ibm | Image rotation apparatus |
CH643959A5 (de) * | 1978-04-14 | 1984-06-29 | Siemens Ag | Verfahren und vorrichtung zur automatischen lageerkennung von halbleiterchips. |
US4201378A (en) * | 1978-05-16 | 1980-05-06 | Bell & Howell Company | Skew detector |
US4459021A (en) * | 1978-11-03 | 1984-07-10 | The Perkin-Elmer Corporation | Memory registration system |
-
1980
- 1980-04-10 EP EP80101915A patent/EP0020897B1/de not_active Expired
- 1980-04-10 DE DE8080101915T patent/DE3065583D1/de not_active Expired
- 1980-05-09 JP JP55060767A patent/JPS6014552B2/ja not_active Expired
- 1980-05-13 IT IT21997/80A patent/IT1148862B/it active
- 1980-06-02 US US06/155,863 patent/US4338588A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3065583D1 (en) | 1983-12-22 |
IT1148862B (it) | 1986-12-03 |
US4338588A (en) | 1982-07-06 |
JPS6014552B2 (ja) | 1985-04-13 |
EP0020897A2 (de) | 1981-01-07 |
EP0020897A3 (en) | 1982-04-28 |
EP0020897B1 (de) | 1983-11-16 |
JPS566570A (en) | 1981-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT8021997A0 (it) | Apparecchiatura per determinare l'angolo ottimo di scansione per documenti stampati. | |
DE3579705D1 (de) | Mehrfunktionsbildverarbeitungsgeraet. | |
DE59104652D1 (de) | Tinten. | |
IT8022506A0 (it) | Apparecchiatura per l'alimentazione di documenti in forma di fogli. | |
DE69008057D1 (de) | Bildaufnahmeblatt. | |
DE69020378D1 (de) | Bildabtastvorrichtung. | |
FR2654981B1 (fr) | Plieuse d'imprimerie. | |
IT8024703A0 (it) | Dispositivo per l'identificazione amico-nemico. | |
DE69112691D1 (de) | Abtastdensitometer. | |
DE69009544D1 (de) | Beeinflussung eines Bildes. | |
IT8022106A0 (it) | Apparecchiatura per l'alimentazione di fogli. | |
JPS57163086A (en) | Beam scanning type marking device | |
DE59007305D1 (de) | Antikorrosive Anstrichstoffe. | |
ES513533A0 (es) | "aparato para alinear remaches o elementos similares". | |
ES514338A0 (es) | "fresadora copiadora con al menos dos montantes moviles". | |
IT8421167A0 (it) | Dispositivo per l'accumulo temporaneo di stampati. | |
IT8223694A0 (it) | Dispositivo di selezione perl'industria cartaria. | |
Roussineau | Perceforest | |
DE3062610D1 (en) | Document scanning system | |
DE69020231D1 (de) | Zeilendrucker. | |
IT1133563B (it) | Dispositivo per la stampa di documenti | |
IT8024972A0 (it) | Dispositivo per l'alimentazione di schede campione continue. | |
FI922363A0 (fi) | Foerbindning mellan en nav och en bromstrumma. | |
FR2470013B1 (fr) | Imprime pour imprimante d'ordinateur | |
DE69023066D1 (de) | Bildabtastgerät. |