WO2010102739A1 - Vorrichtung und verfahren zum scannen grossformatiger vorlagen - Google Patents
Vorrichtung und verfahren zum scannen grossformatiger vorlagen Download PDFInfo
- Publication number
- WO2010102739A1 WO2010102739A1 PCT/EP2010/001271 EP2010001271W WO2010102739A1 WO 2010102739 A1 WO2010102739 A1 WO 2010102739A1 EP 2010001271 W EP2010001271 W EP 2010001271W WO 2010102739 A1 WO2010102739 A1 WO 2010102739A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- width
- scanned
- large format
- template
- 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
-
- 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
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
-
- 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
- H04N1/0071—Width
-
- 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
- H04N1/00774—Adjusting or controlling
-
- 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
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
-
- 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
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
- H04N1/0408—Different densities of dots per unit length
-
- 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
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
- H04N1/042—Details of the method used
- H04N1/0443—Varying the 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
- H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
- H04N1/042—Details of the method used
- H04N1/0455—Details of the method used using a single set of scanning elements, e.g. the whole of and a part of an array respectively for different formats
-
- 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
- H04N1/17—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa the scanning speed being dependent on content of picture
-
- 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
- H04N2201/042—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207 capable of using different scanning methods at a single scanning station
-
- 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
- H04N2201/04743—Detection of scanning velocity or position by detecting the image directly
-
- 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
Definitions
- the invention relates to a device and a method for scanning large format documents with a large format scanner, which is connected via a standard interface with a PC.
- Large-format scanners which have a built-in computer which can be used according to the number of channels of e.g. Contact image sensors or CCD cameras of the large format scanner corresponding input channels.
- This computer can process all incoming data so fast that high scanning speeds are possible.
- a large format scanner should not be provided with a complex built-in computer, but it should be kept ready on-site PC's for recording and storing the scanned data.
- pre-scans are performed in such scanners, and the speed of the scanner is set as a function of the expected amount of data determined during the pre-scan.
- the disadvantage here is that on the one hand time is required for the pre-scan and secondly an effort is required
- BEST ⁇ TIGUNGSKOPEE must return the template after Pre.Scan back to start with the actual scan.
- US 2009/0040560 A1 already discloses a scanning device in which scanned images are first stored in an internal memory. From the memory, the stored data can be passed to a computer. Depending on the free capacity of the scan memory, the scan unit is stopped or restarted. Furthermore, it is disclosed that according to the US 6,648,226 instead of stopping and restarting the document feeder, a speed control for the document feeder is possible.
- JP 63-7076A discloses a scanning unit with an original recognition, wherein the avoidance of the transmission of unnecessary data and the shortening of the reading time is achieved by restricting to the necessary width and length of the original.
- the invention has for its object to provide a device and a method for scanning large format templates so that pre-scans omitted, the scan speed is optimized, between the creation of the template and the storage of data in the PC a significant increase in productivity is achieved and cost-effective scans are achieved.
- the object is achieved in that devices for determining the width of the original are provided in the template path of the large-format scanner, that the devices for determining the width are connected to a switching device in that the switching device with at least one BiI connected to the detection element of the large format scanner that the image sensing element is at least partially switched off depending on the determined width of the original, that a device for continuously determining the maximum transmission bandwidth of the standard interface is provided, that the detection device is connected to a drive for the templates and that the speed of the master drive depending on the output signals of the determination device can be influenced.
- the device for determining the width of the original is a photoelectric barrier.
- These photoelectric sensors work contactless and fast. They do not interfere with the scanning process.
- microswitches or side rulers or the like provided with position sensors could also be used as devices for determining the width of the original.
- the light barriers are arranged at least on one side of the center of the template path with decreasing from light barrier to light barrier intervals.
- the original can be centered.
- the light barriers can also be arranged over the entire width of the scanner, so that a centering on side rulers can be omitted. Due to the changing distances of the light barriers it is achieved that in the outdoor area, where the edges of the large format originals can be found regularly, the format can be determined with a higher accuracy than in the middle area of the document feeder.
- the image capture element is contact image sensors (CIS).
- CIS contact image sensors
- the object underlying the invention is procedurally achieved in that when inserting the template in the large format scanner, a width recognition of the template is not needed as a function of width detection, because not confronted with the template areas of at least one image capture element to reduce the bandwidth of the scanned data To be shut down, to scan the original, to transmit the scanned data through the standard interface, to continuously control the maximum amount of data transferable during the data transfer, and to influence the document feeder speed depending on the result of the control.
- the accumulating amount of data is determined simultaneously with thessen ventedselement- shutdown and calculates the feed rate for the template from this amount of data and depending on the determined maximum transferable amount of data. It has been proven that the maximum transmission bandwidth of the standard interface is determined before the scan start, preferably automatically determined, and the result used for presetting the speed of the document feeder.
- width detection is carried out as coarse width detection by means of light barriers.
- the ability to switch off individual areas of the image-capturing element ensures that the total width of the image-capturing element can be optimally adapted to the determined width of the original, so that in fact only the data originating from the original is recorded. Scopes outside the template are essentially not scanned, unlike the prior art, so that no data is generated here.
- the data transfer is monitored continuously and the speed of the scanner is corrected as a function of the monitoring result.
- the scanned or stored data are expediently processed using filters and output in this processed form or stored in the desired target format.
- the original document is inserted in position 1.
- the width recognition is carried out, eg coarse width detection via photoelectric barriers.
- unnecessary areas of the image acquisition elements, here the CIS elements or individual channels of the CIS elements in position 3 are switched off.
- the scanning speed 4 is determined as a function of the width recognition 2 and the expected data volume given by the document width.
- data such as resolution, color mode 5 and determination of the bandwidth 6 are included in this calculation. Now the scan start 7.
- Correction data such as black-and-white alignment data is applied to the data obtained in the scan according to item 8.
- the correspondingly corrected scanned data will be compressed lossless according to position 9.
- the data transfer 10 via standard interfaces such. B. USB / 2 or Gigabit LAN interfaces.
- the lossless data decompression takes place 12.
- processing 13 of the scanned data, z. For example, filters, brightness, sharpness, stinging, etc. are processed.
- the data processed in this way are stored in position 14.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Facsimile Scanning Arrangements (AREA)
- Facsimiles In General (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080011578.7A CN102405637B (zh) | 2009-03-10 | 2010-03-02 | 扫描大幅面原稿的装置和方法 |
GB1115559.5A GB2480786B (en) | 2009-03-10 | 2010-03-02 | Method of and apparatus for scanning large-format documents |
US13/203,725 US20110310443A1 (en) | 2009-03-10 | 2010-03-02 | Device and method for scanning large-format documents |
US14/166,309 US20140139888A1 (en) | 2009-03-10 | 2014-01-28 | Method and apparatus for scanning large-format documents |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009011945.0 | 2009-03-10 | ||
DE102009011945A DE102009011945B4 (de) | 2009-03-10 | 2009-03-10 | Vorrichtung und Verfahren zum Scannen großformatiger Vorlagen |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/203,725 A-371-Of-International US20110310443A1 (en) | 2009-03-10 | 2010-03-02 | Device and method for scanning large-format documents |
US14/166,309 Continuation-In-Part US20140139888A1 (en) | 2009-03-10 | 2014-01-28 | Method and apparatus for scanning large-format documents |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010102739A1 true WO2010102739A1 (de) | 2010-09-16 |
Family
ID=42133564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/001271 WO2010102739A1 (de) | 2009-03-10 | 2010-03-02 | Vorrichtung und verfahren zum scannen grossformatiger vorlagen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20110310443A1 (de) |
CN (1) | CN102405637B (de) |
DE (1) | DE102009011945B4 (de) |
GB (1) | GB2480786B (de) |
WO (1) | WO2010102739A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011018381B4 (de) | 2011-04-21 | 2014-09-11 | Roth + Weber Gmbh | Großformatiges Scanner-System |
DE102011018496B4 (de) | 2011-04-23 | 2013-07-18 | Roth + Weber Gmbh | Scan-Verfahren für ein großformatiges Scanner-System mit Stitching-Verfahren |
DE102014201035A1 (de) | 2014-01-21 | 2015-07-23 | Roth + Weber Gmbh | Verfahren zum Scannen großformatiger Scan-Vorlagen mit automatischer dynamischer Maßstabskorrektur |
CN104102395B (zh) * | 2014-07-03 | 2017-12-15 | 宁波术有电子科技有限公司 | 基于千兆以太网传输的宽幅图像扫描系统的实现方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS637076A (ja) | 1986-06-27 | 1988-01-12 | Matsushita Electric Ind Co Ltd | 画像読み取り装置 |
US5153747A (en) * | 1990-02-28 | 1992-10-06 | Ricoh Company, Ltd. | Color scanner with built-in color compression hardware to reduce scan time |
DE69025751T2 (de) | 1989-11-30 | 1996-09-26 | Eastman Kodak Co | Kopierer mit automatischer skalierung, automatischer papierwahl und fensterskalierung |
US6172704B1 (en) * | 1996-02-16 | 2001-01-09 | Olympus Optical Co., Ltd. | Film scanner apparatus |
US20020027163A1 (en) * | 2000-09-05 | 2002-03-07 | Yoshito Haba | Image reading apparatus and method |
JP2003037714A (ja) * | 2001-07-25 | 2003-02-07 | Canon Inc | 画像読取装置、その制御方法、画像読取システム、及び制御プログラム |
US20060001923A1 (en) * | 2004-07-02 | 2006-01-05 | Konica Minolta Business Technologies, Inc. | Image reading apparatus and image reading method |
US20060290998A1 (en) * | 2005-06-27 | 2006-12-28 | Jung Jung-Woon | Apparatus and method of controlling scanner |
US20080137156A1 (en) * | 2006-12-11 | 2008-06-12 | Canon Kabushiki Kaisha | Image-scanning system, method of controlling image-scanning system, and computer readable medium therefor |
US20090040560A1 (en) | 2007-08-10 | 2009-02-12 | Canon Kabushiki Kaisha | Image reading apparatus and control method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2102298C (en) * | 1992-03-19 | 2001-01-23 | Shuichi Morikawa | Image reading apparatus |
JP2000280564A (ja) * | 1999-03-31 | 2000-10-10 | Brother Ind Ltd | 印刷方法及び印刷システム |
US7202981B2 (en) * | 2001-11-01 | 2007-04-10 | Kuo-Jeng Wang | Method and system for increasing scanning speed |
US7558524B2 (en) * | 2002-03-01 | 2009-07-07 | Seiko Epson Corporation | Image reading system |
JP4662807B2 (ja) * | 2004-08-06 | 2011-03-30 | 株式会社リコー | 原稿読み取り装置,画像処理装置,画像形成装置および複写装置 |
-
2009
- 2009-03-10 DE DE102009011945A patent/DE102009011945B4/de active Active
-
2010
- 2010-03-02 WO PCT/EP2010/001271 patent/WO2010102739A1/de active Application Filing
- 2010-03-02 US US13/203,725 patent/US20110310443A1/en not_active Abandoned
- 2010-03-02 GB GB1115559.5A patent/GB2480786B/en not_active Expired - Fee Related
- 2010-03-02 CN CN201080011578.7A patent/CN102405637B/zh active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS637076A (ja) | 1986-06-27 | 1988-01-12 | Matsushita Electric Ind Co Ltd | 画像読み取り装置 |
DE69025751T2 (de) | 1989-11-30 | 1996-09-26 | Eastman Kodak Co | Kopierer mit automatischer skalierung, automatischer papierwahl und fensterskalierung |
US5153747A (en) * | 1990-02-28 | 1992-10-06 | Ricoh Company, Ltd. | Color scanner with built-in color compression hardware to reduce scan time |
US6172704B1 (en) * | 1996-02-16 | 2001-01-09 | Olympus Optical Co., Ltd. | Film scanner apparatus |
US20020027163A1 (en) * | 2000-09-05 | 2002-03-07 | Yoshito Haba | Image reading apparatus and method |
US6648226B2 (en) | 2000-09-05 | 2003-11-18 | Canon Kabushiki Kaisha | Image reading apparatus and method |
JP2003037714A (ja) * | 2001-07-25 | 2003-02-07 | Canon Inc | 画像読取装置、その制御方法、画像読取システム、及び制御プログラム |
US20060001923A1 (en) * | 2004-07-02 | 2006-01-05 | Konica Minolta Business Technologies, Inc. | Image reading apparatus and image reading method |
US20060290998A1 (en) * | 2005-06-27 | 2006-12-28 | Jung Jung-Woon | Apparatus and method of controlling scanner |
US20080137156A1 (en) * | 2006-12-11 | 2008-06-12 | Canon Kabushiki Kaisha | Image-scanning system, method of controlling image-scanning system, and computer readable medium therefor |
US20090040560A1 (en) | 2007-08-10 | 2009-02-12 | Canon Kabushiki Kaisha | Image reading apparatus and control method |
Also Published As
Publication number | Publication date |
---|---|
DE102009011945B4 (de) | 2010-12-02 |
CN102405637A (zh) | 2012-04-04 |
US20110310443A1 (en) | 2011-12-22 |
GB2480786A (en) | 2011-11-30 |
GB2480786B (en) | 2014-09-17 |
CN102405637B (zh) | 2015-04-22 |
DE102009011945A1 (de) | 2010-09-30 |
GB201115559D0 (en) | 2011-10-26 |
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