CN105354911A - Image scanning method and image scanning device - Google Patents
Image scanning method and image scanning device Download PDFInfo
- Publication number
- CN105354911A CN105354911A CN201510835693.0A CN201510835693A CN105354911A CN 105354911 A CN105354911 A CN 105354911A CN 201510835693 A CN201510835693 A CN 201510835693A CN 105354911 A CN105354911 A CN 105354911A
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- light
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- original copy
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- spectrum
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001228 spectrum Methods 0.000 claims abstract description 36
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000004020 luminiscence type Methods 0.000 abstract description 4
- 230000003595 spectral effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/128—Viewing devices
Abstract
The invention provides an image scanning method and an image scanning device. The image scanning method includes: lights with different spectrums are employed to scan a manuscript according to a predetermined luminescence sequence; corresponding image information is obtained according to scanning results at each time; the lights with at least two different spectrums are arranged at the same moment for the scanning of the manuscript, and scanning results of the manuscript scanned by the lights with at least two different spectrums at the same moment are arranged in one image information. According to the technical scheme, problems of long time and low efficiency of image generation in the prior art can be solved.
Description
Technical field
The present invention relates to image scanning techniques field, in particular to a kind of image scan method and image-scanning device.
Background technology
Current contact-type image sensor is applied in financial industry widely, and such as paper money counter, cash inspecting machine, ATM all-in-one etc., be mainly used in the scanning to bills such as bank note, and for scanning image out, combination algorithm, differentiates the true and false of the bills such as bank note.
Computer image genration of the prior art, by arranging the lighting timings such as ruddiness, green glow, blue light, infrared light, ultraviolet light, through five lightings, generate the image with anti-counterfeiting characteristic information that ruddiness, green glow, blue light, infrared light fourth officer gray level image and a pair are sent by ultraviolet light respectively.This process need carries out five lightings, carries out single pass after each lighting, generates a sub-picture, as this increased lighting time and sweep time, and follow-up carry out image authentication time, needing to differentiate each image, differentiating time of image as this increased.Therefore, when being differentiated bill by prior art, it differentiates that the time is longer, efficiency is lower.
Summary of the invention
The invention provides a kind of image scan method and image-scanning device, to solve image generation times of the prior art length, inefficient problem.
According to an aspect of the present invention, provide a kind of image scan method, image scan method comprises and uses the light of different spectrum to scan respectively original copy according to predetermined sequence of light; Corresponding image information is obtained according to each scanning result; Wherein, the light of at least two different spectrum is arranged in synchronization and scans original copy, and the light of at least two different spectrum is arranged in an image information at the scanning result that synchronization scans original copy.
Further, the light of different spectrum is used to scan respectively to comprise to original copy and the light of all different spectrum is arranged in synchronization sends and scan original copy according to predetermined sequence of light.
Further, obtain corresponding image information according to each scanning result, specifically comprise acquisition scans result, obtain the light signal of reflection during scanning; The light signal of reflection is converted to digital signal; Digital signal is processed with synthetic image information.
According to a further aspect in the invention, provide a kind of image-scanning device, image-scanning device comprises light source, for launching the light of multiple spectrum to original copy; Lens, for collecting the light reflected by original copy; Imageing sensor, for receiving the reflected light collected by lens, and is converted to electric signal by reflected light; Light source control portion, is electrically connected with light source, and light source control portion launches the light of at least two kinds of spectrum in multiple spectrum simultaneously for controlling light source; Data processing division, is electrically connected with imageing sensor, and data processing division processes electric signal with synthetic image.
Further, the light of the multiple spectrum of light source transmitting comprises ruddiness, green glow, blue light, infrared light and ultraviolet light.
Further, imageing sensor comprises sensor base plate; Sensitive chip, is arranged on sensor base plate.
Further, imageing sensor also comprises filter coating, is arranged on the photosensitive window of sensitive chip.
Further, imageing sensor comprises multiple filter coating.
Further, imageing sensor comprises red filter film, green filter film and blue filter film.
Apply technical scheme of the present invention, when utilizing the various spectrum of light source to scan original copy, the light of at least two different spectrum being scanned original copy simultaneously, as this reduced scanning times, shortening sweep time; And decrease the amount of images of generation, for follow-up discriminating image saves the time.By image scan method provided by the invention, can sweep time be shortened, improve scan efficiency.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the sequential chart in prior art in light source during each spectral luminescence;
Fig. 2 shows the process flow diagram of image scan method provided by the invention;
Fig. 3 shows the structural representation of image-scanning device provided by the invention;
Fig. 4 shows the sequential chart in the embodiment of the present invention in light source during each spectral luminescence;
Fig. 5 shows the another sequential chart in the embodiment of the present invention in light source during each spectral luminescence.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, light source; 20, lens; 30, imageing sensor; 31, sensor base plate; 32, sensitive chip; 40, light source control portion; 50, data processing division; 60, original copy.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
As shown in Figure 2, in the first embodiment of the invention, a kind of image scan method is provided.This image scan method comprises:
Step 1: use the light of different spectrum to scan respectively original copy according to predetermined sequence of light, wherein, ruddiness, green glow, blue light, infrared light, ultraviolet light, white light etc. can be comprised in light source, different according to the type that will detect original copy, the light that light source exports required spectrum can be controlled, and the light exported is sorted.
Step 2: obtain corresponding image information according to each scanning result, wherein, often carry out single pass, namely processes scanning result and obtains corresponding image information.
In this scan method, the light of the spectrum of at least two in light source is arranged on synchronization and sends and scan, and the scanning result of this synthesis photoscanning is arranged in an image information.
Apply technical scheme of the present invention, when utilizing the various spectrum of light source to scan original copy, the light of at least two different spectrum being scanned original copy simultaneously, as this reduced scanning times, shortening sweep time; And decrease the amount of images of generation, for follow-up discriminating image saves the time.By image scan method provided by the invention, can sweep time be shortened, improve scan efficiency.
Wherein, alternatively, also the light of all spectrum can be sent to scan original copy simultaneously, and by scanning result synthesis in an image information, so at utmost can save the quantity of sweep time and follow-up discriminating image.
Particularly, no matter be carry out single pass, or Multiple-Scan, when processing scanning result, all need to carry out following steps:
Step 301: acquisition scans result, collects the light signal be reflected back by original copy.
Step 302: the light signal of reflection is converted to digital signal.
Step 303: digital signal is processed with synthetic image information.
After the one or more image information of acquisition, by calculating, comparing, truth identification can be carried out to original copy.
As shown in Figure 3, in second embodiment of the invention, provide a kind of image-scanning device.This image-scanning device comprises: light source 10, lens 20, imageing sensor 30, light source control portion 40 and data processing division 50.Light source control portion 40 is electrically connected with light source 10, and data processing division 50 is electrically connected with imageing sensor 30.When scanning original copy 60, launched the light of different spectrum to original copy 60 by light source 10, light reflects after being radiated at original copy 60, the light be reflected back from original copy 60 carries out collecting and is sent to imageing sensor 30 by lens 20, the light signal be reflected back is converted to electric signal by imageing sensor 30, and this electric signal is sent to data processing division 50, data processing division 50 converts electrical signals to simulating signal, and according to the default employing cycle to analog signal sampling process, more calibrated, the last synthetic image of analog to digital conversion.Wherein, in the present embodiment, light source control portion 40 launches the light of at least two kinds of spectrum in multiple spectrum simultaneously for controlling light source 10.
The image-scanning device that application the present embodiment provides, can when scanning original copy 60, the light that can control multiple spectrum scans original copy 60 simultaneously, and the information simultaneously scanned can be synthesized in same image information, so sweep time can be shortened, reduce amount of images, and then the scan efficiency of this scanister can be improved.
Wherein, particularly, the light of the multiple spectrum of this light source 10 transmitting comprises ruddiness, green glow, blue light, infrared light and ultraviolet light.As shown in Figure 4, infrared light is wherein controlled by light source control portion 40 and ultraviolet light scans original copy 60 simultaneously.Certainly, the sequence of light in the present embodiment is not limited to the order shown in Fig. 4, also can be that other two kinds of light are simultaneously luminous, or the light of all spectrum together sends.
Particularly, this imageing sensor 30 comprises sensor base plate 31 and sensitive chip 32.Wherein, sensitive chip 32 is arranged on sensor base plate 31.Receive reflected light by sensitive chip 32, and reflected light is converted to electric signal.
In the present embodiment, this imageing sensor 30 also comprises filter coating, and filter coating is arranged on the photosensitive window of sensitive chip 32.Other veiling glare can be filtered by filter coating, improve the accuracy of scanning.Alternatively, this imageing sensor 30 comprises multiple filter coating, and particularly, this imageing sensor 30 comprises red filter film, green filter film and blue filter film, to make sensitive chip 32 can only receive ruddiness, green glow, blue light and infrared light, to remove other interference light.Further, by this filter coating, when using white light to irradiate original copy 60, the white light be reflected back is after three kinds of filter coatings filter, and sensitive chip 32 can receive red, green, blue three kinds of light, so can reduce scanning times, improves scan efficiency.As shown in Figure 5, the light controlling white light and other spectrum in conjunction with light source control portion 40 together irradiates original copy 60 and can reduce scanning times further, improve scan efficiency.
By technical scheme provided by the invention, scanning times and entire scan time can be reduced, and reduce the scan image of follow-up discrimination process, and then improve overall false distinguishing efficiency.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an image scan method, is characterized in that, described image scan method comprises:
The light of different spectrum is used to scan respectively original copy according to predetermined sequence of light;
Corresponding image information is obtained according to each scanning result;
Wherein, the light of at least two different spectrum is arranged in synchronization and scans original copy, and the light of described at least two different spectrum is arranged in an image information at the scanning result that synchronization scans original copy.
2. image scan method according to claim 1, is characterized in that, uses the light of different spectrum to carry out scanning respectively to original copy comprise according to predetermined sequence of light:
The light of all different spectrum is arranged in synchronization send and scan described original copy.
3. image scan method according to claim 1, is characterized in that, obtains corresponding image information, specifically comprise according to each scanning result:
Acquisition scans result, obtains the light signal of reflection during scanning;
The light signal of described reflection is converted to digital signal;
Described digital signal is processed with synthetic image information.
4. an image-scanning device, is characterized in that, described image-scanning device comprises:
Light source (10), for launching the light of multiple spectrum to original copy (60);
Lens (20), for collecting the light reflected by described original copy (60);
Imageing sensor (30), for receiving the reflected light collected by described lens (20), and is converted to electric signal by described reflected light;
Light source control portion (40), is electrically connected with described light source (10), and described light source control portion (40) launches the light of at least two kinds of spectrum in described multiple spectrum simultaneously for controlling described light source (10);
Data processing division (50), is electrically connected with described imageing sensor (30), and described data processing division (50) processes described electric signal with synthetic image.
5. image-scanning device according to claim 4, is characterized in that, the light of the multiple spectrum that described light source (10) is launched comprises ruddiness, green glow, blue light, infrared light and ultraviolet light.
6. image-scanning device according to claim 4, is characterized in that, described imageing sensor (30) comprising:
Sensor base plate (31);
Sensitive chip (32), is arranged on described sensor base plate (31).
7. image-scanning device according to claim 6, is characterized in that, described imageing sensor (30) also comprises:
Filter coating, is arranged on the photosensitive window of described sensitive chip (32).
8. image-scanning device according to claim 7, is characterized in that, described imageing sensor (30) comprises multiple filter coating.
9. image-scanning device according to claim 7, is characterized in that, described imageing sensor (30) comprises red filter film, green filter film and blue filter film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835693.0A CN105354911A (en) | 2015-11-25 | 2015-11-25 | Image scanning method and image scanning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510835693.0A CN105354911A (en) | 2015-11-25 | 2015-11-25 | Image scanning method and image scanning device |
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| CN105354911A true CN105354911A (en) | 2016-02-24 |
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| CN201510835693.0A Pending CN105354911A (en) | 2015-11-25 | 2015-11-25 | Image scanning method and image scanning device |
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Citations (5)
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|---|---|---|---|---|
| CN101699844A (en) * | 2009-10-16 | 2010-04-28 | 威海华菱光电有限公司 | Full-spectrum identification image sensor |
| CN203072041U (en) * | 2013-03-08 | 2013-07-17 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN103414838A (en) * | 2013-06-20 | 2013-11-27 | 威海华菱光电股份有限公司 | Image scanning device and control method thereof |
| CN104601853A (en) * | 2014-12-25 | 2015-05-06 | 威海华菱光电股份有限公司 | Image scanning device |
| CN205140060U (en) * | 2015-11-25 | 2016-04-06 | 威海华菱光电股份有限公司 | Image scanning device |
-
2015
- 2015-11-25 CN CN201510835693.0A patent/CN105354911A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699844A (en) * | 2009-10-16 | 2010-04-28 | 威海华菱光电有限公司 | Full-spectrum identification image sensor |
| CN203072041U (en) * | 2013-03-08 | 2013-07-17 | 威海华菱光电股份有限公司 | Contact image sensor |
| CN103414838A (en) * | 2013-06-20 | 2013-11-27 | 威海华菱光电股份有限公司 | Image scanning device and control method thereof |
| CN104601853A (en) * | 2014-12-25 | 2015-05-06 | 威海华菱光电股份有限公司 | Image scanning device |
| CN205140060U (en) * | 2015-11-25 | 2016-04-06 | 威海华菱光电股份有限公司 | Image scanning device |
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Application publication date: 20160224 |
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