CN1194528C - Scanning method and device with raised resolution - Google Patents
Scanning method and device with raised resolution Download PDFInfo
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- CN1194528C CN1194528C CNB021020213A CN02102021A CN1194528C CN 1194528 C CN1194528 C CN 1194528C CN B021020213 A CNB021020213 A CN B021020213A CN 02102021 A CN02102021 A CN 02102021A CN 1194528 C CN1194528 C CN 1194528C
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Abstract
The present invention provides a scanning method for raising resolution and a device, which can be applied to optical input devices such as a scanner, a multifunctional business machine, etc. The scanning method comprises guiding light to a document to be scanned to produce a first image; then, producing a second image after the first image is focused and magnified by M multiplying power; finally, the second image is reflected into a scanning module via a reflecting lens and is scanned, wherein the image resolution of the image after scanning by the scanning module increases M times compared with the original resolution of the scanning module.
Description
Technical field
The present invention is about a kind of scan method and scanning means, more specifically, and about a kind of scan method and scanning means that improves resolution.
Background technology
General optical scanner, falt bed scanner is to a file to be scanned as the well-known, as documentation, photo, lantern slide, scans, and obtaining an image data that can read for machinery, and converts number format to and uses for computer.And the image data that scanning means produces is to output on the proper device by computer equipment, as display or printer.In general scanning is used, when the image of file to be scanned is sent to when using in the computer, image can carry out various editors or storage according to user's needs.
In order to satisfy the demand of handling image, the user wishes constantly to change according to its needs the scanning resolution of scanner usually.Because, can select to use low-resolution scan to reduce the data quantity of image if the user only needs coarse scan-image data.Yet when the user only used the low-resolution scan file, the low resolution image data that is produced can't satisfy the high-resolution demand that the processing of multimedia and Digital Drawing is used probably.Therefore, when the user needs more careful scan-image data, must select to use the high resolution scanning that can produce more image data amount.
Yet the resolution of scanner is subject to the precision of its optical module, for example manufacturing technology of electric charge coupling sensing device (CCD) or contact-type image inductor (CIS), and the motion control precision of scan module.
With regard to present scanner,, high-resolution electric charge coupling sensing device must be arranged in the scanner if high resolution scanning will be used the time.Yet high-resolution electric charge coupling sensing device is not easy to obtain, so cost is quite expensive.
Certainly, in addition, optical scanner also can improve original resolution of scanner by different data interpolating technology.For example, the about 300dpi of original resolution of an optical scanner uses some data interpolating technology can increase to 600 or to the effective resolution of 1200dpi.
Yet,, still have shortcoming though these data interpolating technology can improve original resolution of scanner.For example, the extra process time and the internal memory that need some.
Figure one shows the specific embodiment of traditional one scan device to a reflection original text.Traditional scanning means comprises: a lamp source (lamp) 11 and an one scan module 13.
Shown in figure one, a file 10 to be scanned is positioned on the picture plane 12 of scan module 13.Wherein, file 10 to be scanned is reflection original texts.Behind the lamp source 11 irradiations file 10 to be scanned, reflection produces an image.This image is projected in the scan module 13, receives the line scanning of going forward side by side by scan module 13, promptly finishes the scanning motion of reflection original text.At this, the scanning resolution of this image is determined by scan module 13 fully.If scan module 13 be expensive high resolution scanning module, then can produce high-resolution scan-image, and be low-resolution scan module cheaply as if scan module 13, then the resolution of the scan-image of being exported will be restricted.
Figure two shows the specific embodiment of traditional one scan device to a transmission original text.Traditional scanning means comprises: a lamp source 21 and one scan module 13.
Shown in figure two, a file 20 to be scanned is positioned on the picture plane 12 of scan module 13.Wherein, file 20 to be scanned is transmission original texts, as a positive.Behind the lamp source 21 irradiations file 20 to be scanned, projection produces an image.This image is projected in the scan module 13, receives the line scanning of going forward side by side by scan module 13, promptly finishes the scanning motion of transmission original text.At this, the scanning resolution of this image is limited by scan module 13 resolution own equally.
In addition, when traditional scanning means scans, be that file to be scanned is positioned on the picture plane 12, and be that focus point scans with surface as the glass platform at 12 places, plane.And positive sheet folder itself has thickness, and when the scanning positive, the focus point of positive from the glass platform surface has certain distance, and therefore, the image of scanning is unintelligible with causing.
From the above mentioned, we quite need a resolution not to be subjected to the scanning means of scan module restriction.Simultaneously, for satisfying human vision needs, accurately focusing on to avoid unsharp image, also is considerable.
Summary of the invention
In view of above-mentioned, the purpose of this invention is to provide a kind of scan method and device that improves resolution, make its resolution not be subjected to the restriction of scan module.
And another object of the present invention provides a kind of scan method and device of avoiding positive sheet folder thickness effect, so that scan module obtains image more clearly.
The object of the present invention is achieved like this, a kind of scan method promptly is provided, for the resolution that improves the one scan device, wherein this scanning means includes a light source, the one scan module is positioned at this light source below, one camera lens is positioned at the top of this scan module, and at least one reflecting optics, and this scan method comprises following steps:
With light by this light source file to be scanned that leads, to produce one first image;
After this first image focus on amplified with a multiplying power M via this camera lens, produce one second image;
With this second image, via this reflecting optics, reflex to this scan module; And
By this second image of this scan module polycondensation and change into an electronic signal.
The present invention also comprises provides a cover cap to be covered in this light source and this camera lens, and this reflecting optics is arranged at the inboard of this cover cap.
The present invention also is included in and forms an inside groove on this cover cap, and this file to be scanned is fixed in this groove.
The present invention comprises that also this light source wherein is arranged at the centre of this groove and this camera lens, and this file to be scanned is the reflection original text.
The present invention comprises that also this groove wherein is arranged at the centre of this light source and this camera lens, and this file to be scanned is a positive.
The present invention comprises that also wherein this cover cap further is provided with an operation recess at the top of this groove, with this file to be scanned of handled easily.
In the scan method of the present invention, at first, with photoconduction to file to be scanned to produce first image.Then, after first image focus on amplified with multiplying power M, produce second image.At last, second image is reflexed in the scan module via reflecting optics scan.Wherein, the resolution of the image after this scan module scanning increases M doubly than original resolution of scan module.
Scanning means of the present invention comprises a light source, a camera lens, at least one reflecting optics and one scan module.Wherein, this light source shines a file to be scanned in order to a light signal to be provided, to produce one first image.This camera lens produces one second image after with a multiplying power M first image being focused on amplification.Reflecting optics is that second image is reflected.This scan module is that second image after the acquisition reflection is to scan.Wherein, the resolution of the image after this scan module scanning increases M doubly than original resolution of scan module.
Following detailed description of the present invention and icon can further be understood the advantages and spirit of the present invention.
Description of drawings
Figure one shows the specific embodiment of traditional one scan device to a reflection original text;
Figure two shows the specific embodiment of traditional one scan device to a transmission original text;
Figure three shows a specific embodiment flow chart of one scan method of the present invention;
Figure four shows another specific embodiment flow chart of one scan method of the present invention;
Figure five shows the specific embodiment of one scan device of the present invention to a reflection original text;
Figure six shows the specific embodiment of one scan device of the present invention to a transmission original text;
Figure seven shows a top view of a specific embodiment of one scan device of the present invention;
Figure eight shows of the present invention one
Scanning means is in another specific embodiment of a reflection original text; And
Figure nine shows that one scan of the present invention is installed on another specific embodiment of a transmission original text.The number in the figure brief description
10 files to be scanned (reflection original text)
20 files to be scanned (transmission original text)
11 lamp sources (reflection original text)
21 lamp sources (transmission original text)
12 picture planes
13 scan modules
51 camera lenses
71 grooves
Embodiment
Scan method provided by the present invention and scanning means all can be applicable in the optical input apparatus such as general scanner, multifunctional paper feeding machine.
Figure three shows the specific embodiment flow chart of one of scan method of one of the present invention.In this specific embodiment, scan method of the present invention comprises step 31, step 32 and step 33.
In step 31, at first with photoconduction to a file to be scanned, the reflection or transmission produce one first image.Then, step 32 produces one second image after this first image is focused on amplification via this camera lens with a multiplying power M.At last, step 33 reflexes to this second image on the one picture plane of one scan module, and is received as second image on the plane by scan module by at least one reflecting optics, and by its inner camera lens of this scan module, this second image of polycondensation also changes into an electronic signal.
At this, after multiplying power M amplification, the resolution of the image after this scan module scanning increases M doubly than original resolution of scan module.Hence one can see that, and this scan method can significantly improve the restricted resolution of scan module itself.
In addition, this scan method further comprises file to be scanned is positioned in the groove, and this groove can closely be fixed file to be scanned, for accurate focusing.Therefore, the image of file to be scanned can clearly reflex on the picture plane, and makes scan module can access image more clearly, in order to scanning.Wherein, this file to be scanned can be the reflection original text, as file, photo, or the transmission original text, as positive, egative film.And scan module comprises electric charge coupling sensing device (CCD).
Figure four shows another specific embodiment flow chart of one scan method of the present invention.In this specific embodiment, scan method of the present invention comprises step 41, step 42 and step 43.
In step 41, at first with photoconduction to a file to be scanned, the reflection or transmission produce one first image.Then, step 42 produces one second image, and this second image is projected on the picture plane of one scan module after this first image is focused on amplification via this camera lens with a multiplying power M.At last, in step 43, receive as second image on the plane by scan module, and by its inner camera lens of this scan module, this second image of polycondensation also changes into an electronic signal.
At this, after multiplying power M amplification, the resolution of the image after this scan module scanning increases M doubly than original resolution of scan module.Hence one can see that, and this scan method can significantly improve the restricted resolution of scan module itself.
In addition, this scan method further comprises file to be scanned is positioned in the groove, and this groove can closely be fixed file to be scanned, for accurate focusing.So, the image of file to be scanned can clearly project the picture plane, and makes scan module can access image more clearly, in order to scanning.Wherein, file to be scanned can be the reflection original text, as file, photo, or the transmission original text, as positive, egative film.And this scan module comprises electric charge coupling sensing device (CCD).
Figure five shows the specific embodiment of one of the present invention scanning means to a reflection original text.Shown in figure five, scanning means of the present invention comprises: a lamp source 11, a camera lens 51 and one scan module 13.At this, file 10 to be scanned is a reflection original text, as picture, photo, file etc.
At first, behind the lamp source 11 irradiations file 10 to be scanned, reflection produces one first image.Then, first image is projected to camera lens 51, and camera lens 51 produces one second image after this first image is focused on amplification with a multiplying power M.This second image is projected on the picture plane 12 of scan module 13.At last, scan module 13 receives as second image on the plane 12, and the scanning motion that reflects original text is promptly finished in the line scanning of going forward side by side.
Wherein, after camera lens 51 amplifications through multiplying power M, the resolution of the image after scan module 13 scannings improves M doubly than original resolution of scan module 13.Hence one can see that, and this scanning means can significantly improve scan module 13 restricted resolution own.
Figure six shows the specific embodiment of one scan device of the present invention to a transmission original text.Shown in figure six, scanning means of the present invention comprises: a lamp source 21, a camera lens 51 and one scan module 13.At this, file 20 to be scanned is a transmission original text, as positive, egative film, transparency etc.
At first, behind the lamp source 21 irradiations file 20 to be scanned, transmission produces one first image.Then, after first image was projected to camera lens 51, camera lens 51 produced one second image after this first image is focused on amplification with a multiplying power M.This second image is projected on the picture plane 12 of scan module 13.At last, scan module 13 receives as second image on the plane 12, and the scanning motion of transmission original text is promptly finished in the line scanning of going forward side by side.
Wherein, after camera lens 51 amplifications through multiplying power M, the resolution of the image after scan module 13 scannings improves M doubly than original resolution of scan module 13.Hence one can see that, and this scanning means can significantly improve scan module 13 restricted resolution own.
Wherein, this scanning means comprises a groove (not shown), and this groove can closely be fixed file 20 to be scanned.And because this scanning means does not need file 20 to be scanned, as positive, be placed on the picture plane 12, therefore, can avoid the influence of positive sheet folder thickness, make scan module 13 obtain image clearly.
Figure seven shows a top view of a specific embodiment of one scan device of the present invention.As figure seven findings, this scanning means comprises a cover cap and is covered in this light source and this camera lens, form an elongated groove 71 on this cover cap, for placing file to be scanned, this groove can closely be fixed file to be scanned, for accurate focusing, this cover cap further is provided with the outside top of an operation recess at this groove 71, with this file to be scanned of handled easily.
Figure eight shows one scan device of the present invention another specific embodiment to a reflection original text.Shown in figure eight, scanning means of the present invention comprises: a groove 71 is formed at inboard and the one scan module (not shown) that this cover cap, a lamp source 11, a camera lens 51, at least one reflecting optics (not shown) are arranged at this cover cap, lamp source (light source) 11 is arranged at the centre of this groove 71 and this camera lens 51, and this file to be scanned is the reflection original text.
At first, file (not shown) to be scanned is placed groove 71.At this file to be scanned is a reflection original text, as picture, photo, file etc.Behind the lamp source 11 irradiations file to be scanned, reflection produces one first image.Then, after first image was projected to camera lens 51, camera lens 51 produced one second image after this first image is focused on amplification with a multiplying power M.Then, this second image reflexes on the picture plane 12 of scan module via reflecting optics.At last, scan module receives as second image on the plane 12, and the scanning motion that reflects original text is promptly finished in the line scanning of going forward side by side.
Wherein, groove 71 is closely fixing with file to be scanned, for accurate focusing, makes scan module obtain image clearly.In addition, after camera lens 51 amplifications through multiplying power M, the resolution of the image after the scan module scanning improves M doubly than original resolution of scan module.Hence one can see that, and this scanning means can significantly improve the restricted resolution of scan module itself.
Figure nine shows one scan device of the present invention another specific embodiment to a transmission original text.Shown in figure nine, this scanning means comprises: a groove 71 is formed at this cover cap, a lamp source 21, a camera lens 51, at least one reflecting optics (not shown) and one scan module (not shown), and this groove 71 is arranged at the centre of this lamp source (light source) 21 and this camera lens 51.
At first, file (not shown) to be scanned is placed groove 71.Wherein, this file to be scanned is a transmission original text, as positive, egative film, transparency etc.Behind the lamp source 21 irradiations file to be scanned, transmission produces one first image.Then, after first image was projected to camera lens 51, camera lens 51 produced one second image after this first image is focused on amplification with a multiplying power M.Then, this second image reflexes on the picture plane 12 of scan module via reflecting optics.At last, scan module receives as second image on the plane 12, and the scanning motion of transmission original text is promptly finished in the line scanning of going forward side by side.
Wherein, groove 71 is closely fixing with file to be scanned, and the influence for accurately focusing on and can avoid positive sheet folder thickness makes scan module obtain image clearly.In addition, after camera lens 51 amplifications through multiplying power M, the resolution of the image after the scan module scanning improves M doubly than original resolution of scan module.Hence one can see that, and this scanning means can significantly improve the restricted resolution of scan module itself.
In the aforementioned specification, the present invention is that reference is described with the certain specific embodiments, yet obviously various corrections and change do not break away from the spirit and the scope of broadness of the present invention.And explanation and legend that should correspondence be to be used for being illustrated and unrestricted category of the present invention.Therefore, expression the present invention should be contained correction and the variation that all appear at additional claims of the present invention and equate item with it.
Claims (24)
1. scan method, for the resolution that improves the one scan device, wherein this scanning means includes a light source, the one scan module is positioned at this light source below, one camera lens is positioned at the top of this scan module, and at least one reflecting optics, and this scan method comprises following steps:
With light by this light source file to be scanned that leads, to produce one first image;
After this first image focus on amplified with a multiplying power M via this camera lens, produce one second image;
With this second image,, reflex to this scan module via this reflecting optics; And
By this second image of this scan module polycondensation and change into an electronic signal.
2. scan method as claimed in claim 1, comprising providing a cover cap to be covered in this light source and this camera lens, this reflecting optics is arranged at the inboard of this cover cap.
3. scan method as claimed in claim 2, comprising form an inside groove on this cover cap, this file to be scanned is fixed in this groove.
4. scan method as claimed in claim 3, wherein this light source is arranged at the centre of this groove and this camera lens, and this file to be scanned is the reflection original text.
5. scan method as claimed in claim 3, wherein this groove is arranged at the centre of this light source and this camera lens, and this file to be scanned is a transmission original text.
6. scan method as claimed in claim 3, wherein this cover cap further is provided with an operation recess at the top of this groove, with this file to be scanned of handled easily.
7. scan method, for the resolution that improves the one scan device, wherein this scanning means includes a light source, and the one scan module is positioned at this light source below, and a camera lens is positioned at the top of this scan module, and this scan method comprises following steps:
With photoconduction to a file to be scanned, to produce one first image;
After this first image focus on amplified with a multiplying power M via this camera lens, produce one second image;
Receive this second image by this scan module; And
By this second image of this scan module polycondensation and change into an electronic signal.
8. scan method as claimed in claim 7 is comprising providing a cover cap to be covered in this light source and this camera lens.
9. scan method as claimed in claim 8, comprising form an inside groove on this cover cap, this file to be scanned is fixed in this groove.
10. scan method as claimed in claim 7, wherein this light source is arranged at this file to be scanned below, and this file to be scanned is the reflection original text.
11. scan method as claimed in claim 7, wherein this light source is arranged at this file to be scanned top, and this file to be scanned is a transmission original text.
12. scan method as claimed in claim 7, wherein this cover cap further is provided with an operation recess in the outside of this groove, with this file to be scanned of handled easily.
13. a scanning means comprises:
One light source in order to a light signal to be provided, shines a file to be scanned, to produce one first image;
One camera lens is positioned at the side of this light source, with a multiplying power M, this first image is focused on amplify, to produce one second image; And
The one scan module is positioned at this camera lens below, and for this second image of acquisition, this second image of this scan module polycondensation also changes into an electronic signal.
14. scanning means as claimed in claim 13 comprises that further a cover cap is covered in this light source and this camera lens.
15. scanning means as claimed in claim 14, comprising form an inside groove on this cover cap, this file to be scanned is fixed in this groove.
16. scanning means as claimed in claim 13, wherein this light source is arranged at this file to be scanned below, and this file to be scanned is the reflection original text.
17. scanning means as claimed in claim 13, wherein this light source is arranged at this file to be scanned top, and this file to be scanned is a transmission original text.
18. scanning means as claimed in claim 13, wherein this cover cap further is provided with an operation recess in the outside of this groove, with this file to be scanned of handled easily.
19. a scanning means comprises:
One light source in order to a light signal to be provided, shines a file to be scanned, to produce one first image;
One camera lens is positioned at the side of this light source, is with a multiplying power M, this first image is focused on amplify, to produce one second image;
At least one reflecting optics is for this second image is reflected; And
The one scan module is arranged at the below of this camera lens, and for this second image after the acquisition reflection, this second image of this scan module polycondensation also changes into an electronic signal.
20. scanning means as claimed in claim 19, comprising providing a cover cap to be covered in this light source and this camera lens, this reflecting optics is arranged at the inboard of this cover cap.
21. scan method as claimed in claim 20, comprising form an inside groove on this cover cap, this file to be scanned is fixed in this groove.
22. scanning means as claimed in claim 21, wherein this light source is arranged at the centre of this groove and this camera lens, and this file to be scanned is the reflection original text.
23. scanning means as claimed in claim 21, wherein this groove is arranged at the centre of this light source and this camera lens, and this file to be scanned is a transmission original text.
24. scanning means as claimed in claim 20, wherein this cover cap further is provided with an operation recess at the top of this groove, with this file to be scanned of handled easily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021020213A CN1194528C (en) | 2002-01-17 | 2002-01-17 | Scanning method and device with raised resolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021020213A CN1194528C (en) | 2002-01-17 | 2002-01-17 | Scanning method and device with raised resolution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1433214A CN1433214A (en) | 2003-07-30 |
| CN1194528C true CN1194528C (en) | 2005-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021020213A Expired - Lifetime CN1194528C (en) | 2002-01-17 | 2002-01-17 | Scanning method and device with raised resolution |
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| CN (1) | CN1194528C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101374189B (en) * | 2007-08-21 | 2011-02-02 | 致伸科技股份有限公司 | Scanning apparatus with different resolutions |
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2002
- 2002-01-17 CN CNB021020213A patent/CN1194528C/en not_active Expired - Lifetime
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| Publication number | Publication date |
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| CN1433214A (en) | 2003-07-30 |
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