CN1395217A - One-step double-exposure scanning method - Google Patents
One-step double-exposure scanning method Download PDFInfo
- Publication number
- CN1395217A CN1395217A CN 01119991 CN01119991A CN1395217A CN 1395217 A CN1395217 A CN 1395217A CN 01119991 CN01119991 CN 01119991 CN 01119991 A CN01119991 A CN 01119991A CN 1395217 A CN1395217 A CN 1395217A
- Authority
- CN
- China
- Prior art keywords
- data
- scan
- scanning
- view data
- output
- 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.)
- Pending
Links
Landscapes
- Facsimile Scanning Arrangements (AREA)
Abstract
The invented scanning method with two exposures within one step utilizes one scanning system driven by the motor and includes following procedures. After rotating at the preset distance, the motor stops, the scanning is carried out. In the first scanning, one group of the image data of the odd (even) pixels is obtained and the necessary compensatino is done for the odd (even) pixels. In the second scanning, one group of the image data of the even (odd) pixels is obtained and the necessary compensation is done for the even (odd) pixels. Finally, the image data are output.
Description
Technical field
The invention relates to a kind of method for scanning, and particularly capable scan method about an a kind of one-step double-exposure.
Background technology
Please refer to Fig. 1, its expression be known scan method.After Charged Coupled Device 100 receives scan-data, after the light intensity that is sensed utilized opto-electronic conversion, become photocurrent, be stored in storage electrode, become signal charge, become different potential difference (PD) again via conversion, and by adc 110, the analog signal conversion of Charged Coupled Device 100 is become digital signal, when Application Specific Integrated Circuit 120 receives scan-data, Application Specific Integrated Circuit 120 is 130 taking-up offset datas in the compensation internal memory earlier, and scan-data done compensation deals, and then the scan-data after the compensation is stored to image memory 140, read the data of picture signal again from image memory 140, and the data of picture signal are delivered to input/output end port 150, with the output scanning data.
Yet, scanner is in order to increase the resolution of image, have for the problem that high-resolution produced: (1). need solve the sensor saturation problem by transferring the lamp technology, because the time shutter is oversize, Charged Coupled Device has saturated problem, time shutter is too short, and Charged Coupled Device will be sent the deficiency of time of voltage signal; (2). the data volume that Charged Coupled Device will be sent voltage signal is very big, makes the capacity of compensation internal memory and the quantity of backoff counter increase, can't be to the higher resolution of scanning support in a big way; (3). the data volume that Charged Coupled Device will be sent voltage signal is very big, also makes the capacity of image memory increase.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this invention is to provide a kind of scan method of an one-step double-exposure, the method passes through to change the processing mode to view data, and then has improved above-mentioned shortcoming.
The invention provides a kind of scan method of an one-step double-exposure, is to utilize a scanning system, and this scanning system drives with a motor, and this method comprises the following steps: that this motor stops laggard line scanning turning to a setpoint distance; And when scanning for the first time, obtain one group of strange (idol) pixel image data and this strange (idol) pixel image data is done necessary repair; When scanning for the second time, obtain one group of idol (very) pixel image data and this idol (very) pixel image data is done necessary compensation; At last with this view data output.
After adopting the present invention, because difference to the view data processing mode, make the view data that needs single treatment to finish originally, be divided into secondary, so once the view data of required processing becomes original half, and corresponding required offset data also becomes original half, therefore can reduce the space of compensation internal memory and image memory, and stop by control revolution to a setpoint distance, improving because the time shutter is oversize, Charged Coupled Device has saturated problem, time shutter is too short, Charged Coupled Device will be sent the problem of voltage signal deficiency of time, simultaneously, has also reduced the compensation internal memory, the demand of image memory.
Description of drawings
Fig. 1 is known scanning block scheme.
Fig. 2 is the scan method process flow diagram of a kind of one-step double-exposure of preferred embodiment of the present invention.
100: Charged Coupled Device
110: adc
120: Application Specific Integrated Circuit
130: the compensation internal memory
140: image memory
150: output/inbound port
160: begin scanning document is scanned
170: motor is being walked to a setpoint distance to stop
180: scanning for the first time
190: scanning for the second time
200: judge whether been scanned of scanning document
210: carry out next section scanning
220: finish scanning
Embodiment
Please refer to Fig. 2.The scan method of an a kind of one-step double-exposure provided by the invention, the method is to utilize a scanning system, and the preferred embodiment of this scanning system comprises: Charged Coupled Device, adc, Application Specific Integrated Circuit, motor, level crossing group, lens combination, filter group, fluorescent tube, image memory, compensation internal memory and output/inbound port.
When scanning system begins scanning document scanned 160, motor stops 170 and begin scanning after rotating a setpoint distance.At first, when scanning for the first time 180, send light source by fluorescent tube and beat on scanning document, after light source penetrates, get on this scanning document, with scanning document produced thus the transmission or the light of reflection, through the level crossing group light is reflexed to lens combination, this moment, lens combination projected Charged Coupled Device with light-ray condensing, and the filter group is between lens combination and Charged Coupled Device, be to be used for filtering light, three kinds of basic color datas such as red to produce, blue and green.
When Charged Coupled Device receives the light time that lens combination is throwed, after the light intensity that is sensed can being utilized opto-electronic conversion, become photocurrent, and be stored in storage electrode, and become signal charge, become different potential difference (PD) via conversion again, pass through adc then, its signal is changed into digital signal, and in Application Specific Integrated Circuit the strange pixel (dual pixel) of an image data processing, and, be stored to image memory at last by taking out the strange pixel (dual pixel) that offset data compensates this view data in the compensation internal memory.
When scanning for the second time 190, its step is the same, the just dual pixel of an image data processing (strange pixel) in Application Specific Integrated Circuit that do not exist together, and compensated and be stored to image memory.
When scanning for the second time 190 finish after, then in Application Specific Integrated Circuit, integrate this secondary image data, judge whether been scanned 200 of scanning document then, if also do not have been scanned, then continue next section scanning 210, if scanning document has scanned and finished, the view data after then will integrating finishes this scanning motion 220 at last in the output of output/inbound port.
Therefore, owing to, view data is divided into secondary treating, so once the view data of required processing and corresponding required offset data also become original half, so can reduce the space that compensates internal memory and image memory to the difference of view data processing mode; Stop by control revolution to a setpoint distance, improve, cause Charged Coupled Device to have saturated or send the problem of voltage signal deficiency of time because the time shutter is oversize or the time shutter is too short.
A preferred embodiment of the present invention openly as above, but it is not in order to limiting the present invention, any change in the present invention conceives scope all drops in protection scope of the present invention.
Claims (2)
1. the scan method of an one-step double-exposure, this method is utilized a scanning system, this scanning system is to drive with motor, and comprise: a Charged Coupled Device, an Application Specific Integrated Circuit, a motor, optical devices, a fluorescent tube, an image memory, a compensation internal memory and an output/inbound port, it is characterized in that: this method comprises the following steps, this motor stops laggard line scanning turning to a setpoint distance; This Charged Coupled Device changes into signal charge with it after receiving this scan-data; Obtain one group of strange pixel image data and this strange pixel image data is done necessary repair; And then obtain one group of dual pixel view data and this dual pixel view data is done necessary repair; With this view data output.
2. the scan method of an one-step double-exposure according to claim 1, it is characterized in that: when obtaining view data and this view data done necessary repair, also comprise the following steps: when this Application Specific Integrated Circuit receives this scan-data, can in this compensation internal memory, grasp one group of offset data earlier, be used for compensating this scan-data; Scan-data after the compensation is stored to image memory; In image memory, grasp out scan-data then, export this output/inbound port output to by Application Specific Integrated Circuit again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01119991 CN1395217A (en) | 2001-07-06 | 2001-07-06 | One-step double-exposure scanning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01119991 CN1395217A (en) | 2001-07-06 | 2001-07-06 | One-step double-exposure scanning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1395217A true CN1395217A (en) | 2003-02-05 |
Family
ID=4663849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01119991 Pending CN1395217A (en) | 2001-07-06 | 2001-07-06 | One-step double-exposure scanning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1395217A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357949A (en) * | 2016-08-26 | 2017-01-25 | 珠海赛纳打印科技股份有限公司 | Scanning device, image forming device and scanning method |
-
2001
- 2001-07-06 CN CN 01119991 patent/CN1395217A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357949A (en) * | 2016-08-26 | 2017-01-25 | 珠海赛纳打印科技股份有限公司 | Scanning device, image forming device and scanning method |
| WO2018036308A1 (en) * | 2016-08-26 | 2018-03-01 | 珠海赛纳打印科技股份有限公司 | Scanning device, imaging apparatus, and scanning method |
| CN106357949B (en) * | 2016-08-26 | 2019-08-06 | 珠海赛纳打印科技股份有限公司 | A kind of scanning means, image forming apparatus and scan method |
| US10477060B2 (en) | 2016-08-26 | 2019-11-12 | Zhuhai Pantum Electronics Co., Ltd. | Scanning device, image-forming apparatus, and scanning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1463558A (en) | Image display system | |
| CN1036874C (en) | Method for projecting image obtained by using liquid crystal panels and display apparatus for realizing same | |
| CN1450400A (en) | Digital mirror device projector and method of controlling amount of light being used in digital mirror device projector | |
| CN1187637C (en) | Optical system of liquid crystal projector | |
| US20060203100A1 (en) | Multispectral image capturing apparatus | |
| US7483086B2 (en) | Illumination optical system, projection video system using the same, and integral-type video display | |
| CN1118469A (en) | Color panel display | |
| CN1010271B (en) | Optical arrangement for illuminating line scan of element | |
| CN1095289C (en) | Beam combiner for LCD projector utilizing a penta-prism | |
| CN1576986A (en) | Projection type display device and back projection type display device using the same | |
| CN1175676C (en) | Projection display device | |
| CN1627179A (en) | Method and apparatus for mapping image shapes for a display device | |
| CN1395217A (en) | One-step double-exposure scanning method | |
| CN100505892C (en) | Light valve system with enhanced contrast | |
| CN1319991A (en) | PHotographic device and method | |
| CN1605214A (en) | Color protection display system with reduced hue variation | |
| CN1222152C (en) | Image reading apparatus | |
| CN1806472A (en) | Projection system | |
| CN1204433C (en) | Projector | |
| CN1667494A (en) | Image display unit | |
| JP3154131B2 (en) | Reading method | |
| CN1178089C (en) | Manuscript penetrating light source for image scanner | |
| CN1263277C (en) | Correcting method and device with multiple correcting curves | |
| CN1144079C (en) | Screen controlled photographic device | |
| CN1129805C (en) | Image acquisition speed-increasing optical device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |