CN201491107U - Image scanning device with speed recording and compensating module - Google Patents
Image scanning device with speed recording and compensating module Download PDFInfo
- Publication number
- CN201491107U CN201491107U CN2009200476135U CN200920047613U CN201491107U CN 201491107 U CN201491107 U CN 201491107U CN 2009200476135 U CN2009200476135 U CN 2009200476135U CN 200920047613 U CN200920047613 U CN 200920047613U CN 201491107 U CN201491107 U CN 201491107U
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- photo
- conversion element
- electric conversion
- document
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 36
- 230000033001 locomotion Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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- 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
- H04N1/0473—Detection, control or error compensation of scanning velocity or position in subscanning direction, e.g. picture start or line-to-line synchronisation
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- 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
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- 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
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0081—Image reader
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- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
The utility model relates to an image scanning device with a speed recording and compensating module. By arranging a photo-electric conversion element used for recording motion speed in the moving direction of a file, a speed change curve in the scanning process can be calculated so as to compensate and correct the digital video data, thus obtaining the image of high quality and greatly improving the scanning speed of the scanning equipment.
Description
Technical field
The utility model relates to a kind of image-scanning device, particularly at the device of the enterprising line distortion compensation of scanning motion direction, by record high-velocity scanning process medium velocity change curve anamorphose is compensated.
Background technology
Existing its scanning theory of scanning device is basic identical, i.e. " line " scanning of document being carried out by photo-electric conversion element (as CCD, COMS, CIS etc.) is called as " main scanning ", and photo-electric conversion element is called " subscan " with respect to the parallel mobile scanning input of original copy.The implementation of " subscan " comprises parallel moving photoconductor conversion element and two kinds of parallel mobile original copys.The mode of parallel moving photoconductor conversion element is applied to the low speed product more, the then high speed products that are applied to of parallel mobile original copy more.
Because the variation of document movement velocity is a key factor that causes image fault during scanning, existing solution then lays particular emphasis on the improvement of transmission mechanism or complicated transducer and operator block, sacrifices sweep speed (referenced patent file 93109650.2 " image collecting device with velocity compensation " and 97103137.1 " device for compensation of distortion dut to digital scanning movement and methods of operation ") even.
Summary of the invention
The purpose of this utility model then is at above-mentioned the deficiencies in the prior art, gather demand for satisfying high-speed image, designed a kind of speed record and compensating module that is used for scanning means, the view data that obtains in the time of can be to high-velocity scanning is carried out velocity compensation, guarantees the quality of image.
The purpose of this utility model can realize by following measure:
The utility model comprises the main scanning element, is used for the transmission mechanism of mobile document, document moving conduit and speed record and compensating module.Speed record and compensating module 1 comprise one or one group photo-electric conversion element 2 and the computing module 3 that are installed in document moving conduit one side at least.
Photo-electric conversion element 2 is used for omnidistance process of taking document by the main scanning element, and photo-electric conversion element 2 is linear photo-electric conversion element, can be photo-electric conversion elements such as CCD, CIS.The movement velocity running parameter curve of Y direction when computing module 3 calculates document by the main scanning element according to the camera data of photo-electric conversion element 2, and by the distorted image reduction of this parameter curve to being produced on the direction of motion.
The beneficial effects of the utility model are:
Take the process of document by whole process by the main scanning element, movement velocity that can the most direct calculating document, and the distorted image that is produced on the direction of motion reduced.Neither need accurate transmission mechanism, also do not need complicated transducer and operator block, can realize the high-velocity scanning process.
Description of drawings
Fig. 1 is structure of the present utility model and schematic diagram.
Fig. 2 is structure and the schematic diagram that has scaled-down version optical system 4 of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing:
The image-scanning device that has speed record and compensating module of the present utility model, main scanning element 1 sweep limits is the included scope of the dotted arrow of directions X from X1 to X2, document passes through along the Y direction, the position of document before by the main scanning element is D1, and the position of document after by the main scanning element is D2.Photo-electric conversion element 2 is installed in document moving conduit one side, can be installed in the main scanning element forward above or below, installation direction is perpendicular to the main scanning element.Photo-electric conversion element 2 can an omnidistance line of taking on the document direction of motion, and its scope is the included scope of the dotted arrow of Y direction from Y1 to Y2 (as Fig. 2, shown in Figure 3).Go out the movement velocity running parameter curve of document by the change in location compute of document edges in the video recording, and by the distorted image reduction of this parameter curve to being produced on the direction of motion.Because only take the video recording of a line of document motion, shooting speed and quality can be protected.Computing module 3 can be installed in the optional position of image-scanning device, links with main scanning element 1 and photo-electric conversion element 2, and distorted image is analyzed and reduced.
Embodiment 1:
The length range of photo-electric conversion element 2 its shooting records that use in speed record and the compensating module should be greater than the length of the document Y direction that is scanned, because the length of some documents is longer, can enlarge institute's record length scope of linear photo-electric conversion element 2 by following two kinds of methods:
A, before photo-electric conversion element 2, can settle a scaled-down version optical system 4, can realize by one group of lens;
B, photo-electric conversion element 2 is installed simultaneously in the both sides, front and back of document moving conduit, the collaborative use, the movement velocity of following the trail of the edge, front and back of document simultaneously, the length range that promptly makes photo-electric conversion element 2 be write down is double.
Embodiment 2:
At the opposite side of document moving conduit, the background baffle plate 5 of auxiliary measuring document movement velocity can be installed in the face of photo-electric conversion element 2.This background baffle plate 5 can adopt solid color such as black, because background baffle plate 5 colors and document edges there are differences, in photo-electric conversion element 2 captured document motions are recorded a video, can easier tell the edge of document, thereby determine the movement velocity of document.
Adopt the scanning means of non-directional document moving conduit for some, the influence of the document movement velocity being judged for the curve of offsetting the document moving conduit, can adopt following method: at first make background baffle plate 4 have the curve identical, and be installed in the position of document moving conduit with the document moving conduit.Can on background baffle plate 5, mark the range mark line, for example chequered with black and white streak line or grating, the range mark line can equidistantly distribute according to the curve trend of document moving conduit, photo-electric conversion element 2 can the shooting distance mark line on one group of distance marking, and as with reference to the influence of offsetting non-linear channels.
Embodiment 3:
One group of parallel photo-electric conversion element 2 can be installed simultaneously, and the document motion video recording that a plurality of like this photo-electric conversion elements 2 are worked simultaneously and taken many lines obtains the movement velocity running parameter curve of best document then by preferred or calculating mean value.
For reaching photographic effect preferably, can serve as that axle is rotated with the Y direction also with the shooting angle of photo-electric conversion element 2, make the centre position that photo-electric conversion element 2 can the motion of track up document.
Obviously, do not breaking away from claims restricted portion of the present utility model, can make all concrete modifications this device.
Claims (4)
1. the image-scanning device that has speed record and compensating module, comprise main scanning element (1), transmission mechanism and document moving conduit, it is characterized in that being that this image-scanning device comprises a speed record and compensating module, described speed record and compensating module comprise one or one group photo-electric conversion element (2) and the computing module (3) that are installed in document moving conduit one side at least, photo-electric conversion element (2) is used for omnidistance process of taking document by the main scanning element, computing module (3) calculates the movement velocity running parameter curve of document according to the camera data of photo-electric conversion element (2), and by this parameter curve the distorted image that is produced on the direction of motion is reduced.
2. the image-scanning device that has speed record and compensating module according to claim 1 is characterized in that described photo-electric conversion element (2) is linear photo-electric conversion element, and installation direction is perpendicular to main scanning element (1).
3. the image-scanning device that has speed record and compensating module according to claim 1, the length range that it is characterized in that its shooting record of described photo-electric conversion element (2) should can enlarge the length range of the Y direction that is write down of linear photo-electric conversion element (2) by following two kinds of structures greater than the length of the document Y direction that is scanned:
A, can settle a scaled-down version optical system (4) before at photo-electric conversion element (2);
B, photo-electric conversion element (2) is installed simultaneously, the collaborative use in the both sides, front and back of document moving conduit.
4. the image-scanning device that has speed record and compensating module according to claim 1, it is characterized in that at the opposite side of document moving conduit in the face of photo-electric conversion element (2), be provided with the background baffle plate (5) of auxiliary measuring document movement velocity, this background baffle plate (5) can be color background or the background that has the range mark line, and described document moving conduit can be beeline channel or curved channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200476135U CN201491107U (en) | 2009-07-20 | 2009-07-20 | Image scanning device with speed recording and compensating module |
| PCT/CN2010/074927 WO2011009374A1 (en) | 2009-07-20 | 2010-07-02 | Image scanning device with speed compensation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200476135U CN201491107U (en) | 2009-07-20 | 2009-07-20 | Image scanning device with speed recording and compensating module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491107U true CN201491107U (en) | 2010-05-26 |
Family
ID=42429971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200476135U Expired - Fee Related CN201491107U (en) | 2009-07-20 | 2009-07-20 | Image scanning device with speed recording and compensating module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201491107U (en) |
| WO (1) | WO2011009374A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011009374A1 (en) * | 2009-07-20 | 2011-01-27 | 吴伟佳 | Image scanning device with speed compensation unit |
| CN102170513A (en) * | 2011-03-02 | 2011-08-31 | 吴伟佳 | Image scanning device with speed compensation unit and compensation method thereof |
| CN102281380A (en) * | 2011-09-09 | 2011-12-14 | 吴伟佳 | Image scanning device with combination light path and speed compensation unit |
| WO2013053315A1 (en) * | 2011-10-10 | 2013-04-18 | 南京酷朗电子有限公司 | Contact image sensor with scan arrays |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115855034B (en) * | 2022-10-28 | 2024-10-22 | 中国科学院长春光学精密机械与物理研究所 | Linear speed compensation method for airborne photoelectric platform |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6167818A (en) * | 1984-09-12 | 1986-04-08 | Matsushita Electric Ind Co Ltd | Semiconductor laser light scanner |
| US5541637A (en) * | 1992-07-30 | 1996-07-30 | Brother Kogyo Kabushiki Kaisha | Image exposure apparatus with compensation for variations in scanning rate |
| US5530562A (en) * | 1992-08-06 | 1996-06-25 | De La Rue Giori S.A. | Apparatus for image acquisition with speed compensation |
| CN1058120C (en) * | 1997-03-04 | 2000-11-01 | 力捷电脑股份有限公司 | Motion Distortion Compensation Device and Operation Method for Digital Scanning |
| JP4958610B2 (en) * | 2007-04-06 | 2012-06-20 | キヤノン株式会社 | Image stabilization apparatus, imaging apparatus, and image stabilization method |
| US7978932B2 (en) * | 2007-08-02 | 2011-07-12 | Mauna Kea Technologies | Robust mosaicing method, notably with correction of motion distortions and tissue deformations for in vivo fibered microscopy |
| CN201491107U (en) * | 2009-07-20 | 2010-05-26 | 吴伟佳 | Image scanning device with speed recording and compensating module |
-
2009
- 2009-07-20 CN CN2009200476135U patent/CN201491107U/en not_active Expired - Fee Related
-
2010
- 2010-07-02 WO PCT/CN2010/074927 patent/WO2011009374A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011009374A1 (en) * | 2009-07-20 | 2011-01-27 | 吴伟佳 | Image scanning device with speed compensation unit |
| CN102170513A (en) * | 2011-03-02 | 2011-08-31 | 吴伟佳 | Image scanning device with speed compensation unit and compensation method thereof |
| CN102281380A (en) * | 2011-09-09 | 2011-12-14 | 吴伟佳 | Image scanning device with combination light path and speed compensation unit |
| WO2013053315A1 (en) * | 2011-10-10 | 2013-04-18 | 南京酷朗电子有限公司 | Contact image sensor with scan arrays |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011009374A1 (en) | 2011-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |