CN1941960A - Embedded scanning cell phone - Google Patents
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- CN1941960A CN1941960A CNA2005101052447A CN200510105244A CN1941960A CN 1941960 A CN1941960 A CN 1941960A CN A2005101052447 A CNA2005101052447 A CN A2005101052447A CN 200510105244 A CN200510105244 A CN 200510105244A CN 1941960 A CN1941960 A CN 1941960A
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Abstract
The method thereof comprises: installing application program in the mobile phone and pre-defining image format template; using mobile phone to shoot the document; the application program makes edge extraction, edge connection, and saves processed image; by the application program, the character reorganization can be made for the text or table.
Description
Invention field
This invention is a kind of method of utilizing shooting mobile phone that captured image result is handled, is to be applied to the shooting mobile phone field.
Background technology
We know, scanner is a very important computer external input device, it can be stored in the computer with the data scanning of our needs such as document, photo, form and with picture format, but existing scanner volume is bigger, general all standard copy paper specifications than A4 breadth are also big, and the speed of scanning is slow, under general condition, per minute is merely able to scan several manuscripts, so, though present scanner is very cheap, being not that each computer is all supporting has a scanner.
Simultaneously, mobile phone become now people from not communication product, and reduction along with development of technology and cost, shooting mobile phone has become the communication apparatus of ordinary consumer first-selection, but the major function of present shooting mobile phone is still absorbed photo and is viewed and admired, the application function that does not have other, and as the main kind of embedded electronic product, the processor of mobile phone self and memory have all obtained very large raising, just can move a lot of comparatively complicated programs and finish comparatively complicated function, so shooting mobile phone also has a lot of new functions can obtain exploitation and use.
Summary of the invention
The purpose of this invention just provides a kind of camera function that utilizes existing shooting mobile phone, and corresponding software, cooperate certain method and step, realize directly and can take pictures and proofread and correct file, business card, manuscript etc., to obtain the image information of reference format, as same real scanner, and can carry out Character Font Recognition and preservation on this basis.
The purpose of this invention is to realize by following method and step: 1, in shooting mobile phone, installs or the transplanting dedicated program, and the good picture specification of first predefine; 2,, to being arranged, takes the target manuscript, to obtain the original image information of target manuscript by mobile phone with camera function; 3,, carry out image processing, mainly comprise edge extracting by dedicated program, or select manual edge to cut apart to image information with above-mentioned acquisition; 4, carry out the edge and connect,, find out the summit of image and be connected, be summed up as class rectangle or irregular polygon promptly according to the result of above-mentioned edge extracting; 5, compare with predefined specification template, proofread and correct according to the perspective principle; 6, then it is proofreaied and correct as the original image of the template that falls short of specifications, and coupling obtains the specification image, result after being about to proofread and correct and template are mated and are preserved; 7, to having, can start character recognition program or driving method, literal and form are discerned image informations such as literal, business card, forms; 8, with identification bearing reaction on the handset displays screen; 9, judge whether to finish and preserve the identification scanning information.
Wherein the step of the above mentioned image processing, edge extracting mainly comprises: (1) denoising; (2) differential or calculus of differences; (3) binary conversion treatment; (4) several steps such as refinement.Wherein mentioned (2) differential or calculus of differences also can adopt the La Pulazi operator, Suo Beier operator, template operation methods such as Robert's operator.
It is to be summed up as class rectangle or irregular polygon according to edge extracting that wherein above-described edge connects, and its rudimentary algorithm step is: (1) is summed up as edge line according to the edge extracting feature, and edge line can be line or curve always; (2) obtain the intersection point or the summit of above-mentioned per two edge lines; (3) each is connected with intersection point or summit.
Wherein above-described original image is then proofreaied and correct, its method is: make original image according to the perspective principle stretch, compressed transform is predefined specification, be complementary with predefined specification template.
The advantage and the effect of this invention are: the condition that makes existing shooting mobile phone, just can take in manuscript etc., through after the correction of software, can become the scan image and the preservation of standard specification, it is had with plain scan instrument the same function and characteristics, if supporting use Character Font Recognition program will be discerned and preserve character, form easilier.Have Polaroid, speed soon, characteristics easily.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the workflow and the step schematic diagram of the embedded scanning cell phone that proposes of the present invention.
Embodiment
By as can be known aforementioned, main method of the present invention and step are: 1, in shooting mobile phone, install or the transplanting dedicated program, and the good picture specification of first predefine; 2,, to being arranged, takes the target manuscript, to obtain the original image information of target manuscript by mobile phone with camera function; 3,, carry out image processing, mainly comprise edge extracting by dedicated program, or select manual edge to cut apart to image information with above-mentioned acquisition; 4, carry out the edge and connect,, find out the summit of image and be connected, be summed up as class rectangle or irregular polygon promptly according to the result of above-mentioned edge extracting; 5, compare with predefined specification template, proofread and correct according to the perspective principle; 6, then it is proofreaied and correct as the original image of the template that falls short of specifications, and coupling obtains the specification image, result after being about to proofread and correct and template are mated and are preserved; 7, to having, can start character recognition program or driving method, literal and form are discerned image informations such as literal, business card, forms; 8, Shi Bie bearing reaction is on the handset displays screen; 9, judge whether to finish and preserve the identification scanning information, below just do comparatively detailed explanation with this.
In the document process of real work, the most frequently used document specification and the specification of scanning document are the A4 breadths, so in this preferred enforcement, just be defined as example with the A4 breadth with the display picture element point, certainly be not limited only to this, can the predefine all size, size and mode.
The physical dimension of A4 breadth is 210mm*297mm, characteristics showed defines a pixel with the display size of wanting to obtain as required, the 0.25mm that for example can pixel of predefine represents original image, the image of an A4 breadth more intactly just when display screen is defined as 1024*768 pixel like this.
The purpose of setting up the specification template is in order to set up the pattern of a standard, the reference sample that a coupling is arranged for later correcting image, take known template for referencial use, suitable original image also is converted into an onesize zone, just can become a series of standard picture, just as the normal size after the scanning, thereby, this specification can be formulated and revise as required, also can adjust by hand.
In order to obtain the image information of manuscript, in coming embodiment, come it is taken pictures with shooting mobile phone, in the manuscript that the reality office is used, with white paper for the most common, in order to allow the image that produces and take pictures and have the limbus feature between the background of taking pictures, just can distinguish which piece zone easily in digital photograph is manuscript, which piece zone is a background, so background should be selected color and the strong color of white contrast for use, for example black or dark colour, so just can simply easily distinguish that zone on digital photograph is manuscript, that zone has been a background, and doing like this is for the ease of the accurate identification of recognizer to the edge.If manuscript is dark, the background light color of preferably checking colors is mutually so taken with digital camera or shooting mobile phone more afterwards and is got final product.In the middle of practical application, sometimes may be not easy to find to compare and have the color background of strong contrast with the manuscript color, at this time, can add a stronger frame of relative color ratio at the edge of manuscript, to form a edge with clear and definite color contrast effect, for example, in the library, on light desktop, open ordinary white books, can place a dark border at the edge of changing books, take this moment again, just can preserve down the image with obvious contrast effect, so that the Automatic Program in one step of back is handled, after finishing above work, promptly can take.
Do so in front is to detect for edge of image, usually the edge that extracts object from a width of cloth complex background all is based on original image, detect each picture element and the interior grey scale change of its neighborhood among the figure, utilize the contiguous single order in edge or the Changing Pattern of second order directional derivative to detect the edge, to reach the purpose that from background, is partitioned into object, so it is obvious more to contrast degree mutually, easy achieving this end more just.
After opening above-mentioned digital photograph on the shooting mobile phone, can select to proofread and correct with artificial mode automatically, can select method in the ordinary course of things for use from dynamic(al) correction, start corresponding correction program, finish by program, if it is bad or other is former thereby select the manual correction program for use from the effect of dynamic(al) correction, directly the edge is cut apart on the original reference photo that can be obtained, promptly four limits of manuscript are directly divided out with straight line, it under the normal condition an irregular quadrangle, directly go to mate with this irregular quadrangle, just can obtain the image of the manuscript of reference format with the predefined specification template in front.
Process from dynamic(al) correction roughly is such: to the image information with above-mentioned acquisition, carry out Edge extraction by computer program, carry out the step of Edge extraction, mainly comprise: (1) denoising; (2) differential or calculus of differences; (3) binary conversion treatment; (4) several steps such as refinement.Wherein differential or calculus of differences also can adopt the La Pulazi operator, Suo Beier operator, template operation methods such as Robert's operator.After carrying out edge extracting, carrying out the edge again connects, promptly according to the result of above-mentioned edge extracting, it is that the result of edge extracting is summed up as class rectangle or irregular polygon that the edge connects, its rudimentary algorithm step is: (1) is summed up as edge line according to the edge extracting feature, and edge line can be line or curve always; (2) obtain the intersection point or the summit of above-mentioned per two edge lines; (3) each is connected with intersection point or summit.So just generated a polygon, this polygon and predefined specification template are compared, ordinary circumstance can not meet certainly fully, as the original image of the template that falls short of specifications is then proofreaied and correct it, the method of proofreading and correct is: making original image is the specification template according to the stretching of perspective principle, compressed transform, is complementary with predefined specification template.So just can obtain the specification image of standard, just have the same result with the image that plain scan instrument scanning back produces, the result after the correction and template are mated and preserve, be exactly our last needed result.
The process of the resulting image information of above method can draw, promptly can obtain all images information of a manuscript through the once photo taking of shooting mobile phone, and can be converted into the picture specification of standard, similar with the result of plain scan instrument, and be on mobile phone, to utilize the memory of mobile phone and processor to finish, so be referred to as embedded scanning cell phone, and once just can finish, after proofreading and correct through software, it has eliminated the distortion and the distortion of original image, promptly scan resulting coming to the same thing with standard scanner, deficiency is also arranged certainly, maximum deficiency is exactly under the restriction of existing photography conditions, be exactly under the not high situation of the pixel resolution of shooting mobile phone, the resolution of digital photograph scanning can be less than existing scanner, but can satisfy in general applications, and along with the raising of the resolution of the imageing sensor of mobile phone, the resolution of scanning also can be more and more higher, and have the absolute predominance on the sweep speed.
Finish on the basis of above-mentioned functions, can also use character recognition program, the information that is obtained is carried out literal and form identification, because image is proofreaied and correct, so this recognition correct rate that advances can not optimized greatly and improve through the result of overcorrect, makes digital photograph scan method and device have practicality more.
So, above-mentioned this scheme also is applicable to the identification preservation of shooting mobile phone to business card, and the processing of other character pattern and preservation, not only can be applied to Chinese, if supporting identification software is other languages, identification, processing and the preservation of the character pattern of other literal can also be carried out, also same purpose can be reached.
Though one embodiment of the present of invention only have been described here, its meaning be not limit the scope of the invention, applicability and configuration.On the contrary, the detailed description to embodiment can make those skilled in the art be implemented.Will be understood that not departing under the definite spirit and scope of the invention situation of appended claims, can make suitable change and modification some details.
Claims (5)
1, a kind of embedded scanning cell phone that can scan arrangement to image, manuscript, form, this embedded scanning cell phone can be realized the scan process to image, its method and step are:
(1), in shooting mobile phone, installs or transplant dedicated program, and the good picture specification of first predefine;
(2), by mobile phone with camera function, take the target manuscript is arranged, to obtain the original image information of target manuscript;
(3), to image information with above-mentioned acquisition, carry out image processing, mainly comprise edge extracting by dedicated program, or select manual edge to cut apart;
(4), carry out the edge and connect, promptly according to the result of above-mentioned edge extracting, find out the summit of image and be connected, be summed up as class rectangle or irregular polygon;
(5), compare with predefined specification template, proofread and correct according to the perspective principle;
(6), then it is proofreaied and correct, and coupling obtains the specification image, and result after being about to proofread and correct and template are mated and preserved as the original image of the template that falls short of specifications;
(7), to having to image informations such as literal, business card, forms, can start character recognition program or driving method, literal and form are discerned;
(8), with identification bearing reaction on the handset displays screen;
(9), judge whether to finish and preserve the identification scanning information.
2, embedded scanning cell phone according to claim 1, wherein (3) mentioned image processing, the step of edge extracting mainly comprise: (1) denoising; (2) differential or calculus of differences; (3) binary conversion treatment; (4) several steps such as refinement.
3, embedded scanning cell phone according to claim 2, wherein mentioned (2) differential or calculus of differences also can adopt the La Pulazi operator, Suo Beier operator, template operation methods such as Robert's operator.
4, embedded scanning cell phone according to claim 1, wherein (4) described edge connection is to be summed up as class rectangle or irregular polygon according to edge extracting, its rudimentary algorithm step is: (1) is summed up as edge line according to the edge extracting feature, and edge line can be line or curve always; (2) obtain the intersection point or the summit of above-mentioned per two edge lines; (3) each is connected with intersection point or summit.
5, must ask 1 described embedded scanning cell phone according to power, wherein (5) are described then proofreaies and correct original image, its method is: make the original image of finding out the edge vertices feature according to principle is proofreaied and correct stretching, compressed transform is the specification template according to having an X-rayed, be complementary with predefined specification template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101052447A CN1941960A (en) | 2005-09-28 | 2005-09-28 | Embedded scanning cell phone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101052447A CN1941960A (en) | 2005-09-28 | 2005-09-28 | Embedded scanning cell phone |
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| CN1941960A true CN1941960A (en) | 2007-04-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807293A (en) * | 2010-03-19 | 2010-08-18 | 上海合合信息科技发展有限公司 | Method for adjusting detection result of image quadrilateral frame |
| CN101989349A (en) * | 2009-08-03 | 2011-03-23 | 夏普株式会社 | Image output apparatus and method, portable terminal apparatus and captured image processing system |
| CN104159000A (en) * | 2014-08-21 | 2014-11-19 | 广东欧珀移动通信有限公司 | Scanned image acquiring method and device |
| CN105139359A (en) * | 2015-09-02 | 2015-12-09 | 小米科技有限责任公司 | Image converting method and device |
| CN110463177A (en) * | 2017-04-06 | 2019-11-15 | 华为技术有限公司 | The bearing calibration of file and picture and device |
| CN113012060A (en) * | 2021-02-07 | 2021-06-22 | 深圳柔果信息科技有限公司 | Image processing method, image processing system and electronic equipment |
-
2005
- 2005-09-28 CN CNA2005101052447A patent/CN1941960A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989349A (en) * | 2009-08-03 | 2011-03-23 | 夏普株式会社 | Image output apparatus and method, portable terminal apparatus and captured image processing system |
| CN101989349B (en) * | 2009-08-03 | 2012-10-10 | 夏普株式会社 | Image output apparatus and method and captured image processing system |
| CN101807293A (en) * | 2010-03-19 | 2010-08-18 | 上海合合信息科技发展有限公司 | Method for adjusting detection result of image quadrilateral frame |
| CN104159000A (en) * | 2014-08-21 | 2014-11-19 | 广东欧珀移动通信有限公司 | Scanned image acquiring method and device |
| CN104159000B (en) * | 2014-08-21 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of scan image acquisition methods and device |
| CN105139359A (en) * | 2015-09-02 | 2015-12-09 | 小米科技有限责任公司 | Image converting method and device |
| CN110463177A (en) * | 2017-04-06 | 2019-11-15 | 华为技术有限公司 | The bearing calibration of file and picture and device |
| CN113012060A (en) * | 2021-02-07 | 2021-06-22 | 深圳柔果信息科技有限公司 | Image processing method, image processing system and electronic equipment |
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Effective date of registration: 20100609 Address after: 100022, No. 901, building A, building 1, No. 33, Grand Canal Road, Chaoyang District, Beijing Applicant after: Gu Jinrong Address before: 831100 Experimental Research Institute, Yanan South Road, the Xinjiang Uygur Autonomous Region, Changji Applicant before: Song Baijun |
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Open date: 20070404 |