CN101281441A - System and method for constituting big screen multi-point touch screen - Google Patents
System and method for constituting big screen multi-point touch screen Download PDFInfo
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- CN101281441A CN101281441A CNA2008100281724A CN200810028172A CN101281441A CN 101281441 A CN101281441 A CN 101281441A CN A2008100281724 A CNA2008100281724 A CN A2008100281724A CN 200810028172 A CN200810028172 A CN 200810028172A CN 101281441 A CN101281441 A CN 101281441A
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Abstract
The invention provides a system and a method of constructing a multi-point touch screen of large screen. The system includes: a projection image preprocessing module, a projection device, a touch screen, an image collecting device, an image analyzing and processing module. The method includes the following steps: preprocessing the image to be projected, projecting the processed image on the touch screen to fuse, collecting the image on the touch screen, using image analysis technique to analyze the collected image, carrying out corresponding process to the image according to the analysis result of the image and generating new image, projecting and preprocessing the generated new image. The invention uses the cameras, projection devices and other hardware with low cost, and image processing software of a computer to achieve a multi-point touch screen of large screen, which improves the flexibility of multi-point touch screen of large screen, and reduces manufacturing cost largely.
Description
Technical field
The present invention relates to a kind of image and show the field, relate in particular to a kind of System and method for of constituting big screen multi-point touch screen based on image analysis technology.
Background technology
At present, known touch-screen system along with improving constantly that man-machine interaction requires, has occurred the multiple point touching screen system by magnetic strength or piezoelectricity principle of induction structure, and now general is applied on the small screen devices such as mobile phone or game machine.Fields such as present military sand table, electronic entertainment recreation are huge to the demand of large-sized multi-point touch panel, but because the problem of manufacturing cost, large-sized touch-screen cost is very expensive, causes the use of large scale multi-point touch panel to be difficult to popularize.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system and method for constituting big screen multi-point touch screen, improves the dirigibility of big screen multi-point touch screen system, reduces manufacturing cost.
For solving the problems of the technologies described above, the invention provides a kind of system of constituting big screen multi-point touch screen, comprising:
The projected image pretreatment module is used for the image that projection is wanted in pre-service;
Projection arrangement, the image projection that is used for described projected image pretreatment module is exported is to touch screen;
Touch screen is used to show the image of described projection device, and is touched by the user;
Image collecting device, the image when being used to gather described touch screen and being touched by the user;
The image analysis processing module is used for the image of image collecting device output is carried out graphical analysis, and according to the graphical analysis result image is done corresponding processing.
Further improvement as the system of constituting big screen multi-point touch screen of the present invention:
System also comprises the images acquired Fusion Module, is used to correct and merge the image of described image collecting device output;
Described projected image pretreatment module comprises:
Image partition unit, be used for will projection image be split into some blocks of images;
Reduction processing unit in edge is used for some blocks of images of described image partition unit partition are carried out edge reduction processing;
The unit is corrected in pattern distortion, is used to correct the image of distortion;
Described images acquired Fusion Module comprises:
Reduction processing unit in edge is used for several images of described image collecting device output are carried out edge reduction processing;
The unit is corrected in pattern distortion, is used to correct the edge reduction and handles the image that distortion takes place in the back;
The image co-registration unit is used to merge several images that unit output is corrected in described pattern distortion.
Described pattern distortion is corrected the unit and is realized its function by adopting many reference mark bezier surface modification method.Described image collecting device comprises infrared camera and infraluminescence pipe, and described infraluminescence pipe is used for auxiliary infrared camera and obtains image.
For addressing the above problem, the present invention also provides a kind of method of constituting big screen multi-point touch screen, and it may further comprise the steps:
Image that will projection carries out pre-service; Comprise: the imagery exploitation image partition software that computing machine is prestored is split into several images; Several images after the partition are carried out the edge reduction to be handled; Pattern distortion is corrected;
Pretreated image projection is merged on touch screen;
Image on the collection touch curtain; Comprise: the image when image collecting device is gathered user's touch screen; The image that collects is carried out the gradually light processing in edge; Pattern distortion is corrected; The real time fusion image.
Utilize image analysis technology to analyze the described image that collects, the coordinate position and the action thereof of identification user touch screen image;
The identifying information of the user's touch screen image that draws according to described graphical analysis is made corresponding processing and is generated new image image; The new images that generates is carried out the projection pre-service.
The invention provides a kind of system and method for constituting big screen multi-point touch screen, utilize the Computer Image Processing software engineering to realize the big screen multi-point touch screen system, the system real time height, can make real-time processing and produce corresponding reaction the action of user's touch screen, improved the dirigibility of big screen multi-point touch screen system, and cheap hardware device such as camera head that has only utilized and projector equipment, the manufacturing cost that has reduced widely.
Description of drawings
Fig. 1 is the process flow diagram of method of a kind of constituting big screen multi-point touch screen of the embodiment of the invention.
Fig. 2 is the detail flowchart of method of a kind of constituting big screen multi-point touch screen of the embodiment of the invention.
Fig. 3 is the structural representation of a kind of constituting big screen multi-point touch screen system of the embodiment of the invention.
Fig. 4 is the structural representation of the described projected image pretreatment module of Fig. 3.
Fig. 5 is the structural representation of the described images acquired Fusion Module of Fig. 3.
Fig. 6 is the hardware structure synoptic diagram of a kind of constituting big screen multi-point touch screen system of the embodiment of the invention.
Embodiment
The invention provides a kind of system and method for constituting big screen multi-point touch screen, utilize hardware such as cheap camera head and projector equipment, and Computer Image Processing software is realized big screen multi-point touch screen, improve the dirigibility of big screen multi-point touch screen system, but also reduced manufacturing cost widely.
Fig. 1 is a kind of process flow diagram of an embodiment of method of constituting big screen multi-point touch screen:
Step S01, image that will projection carries out pre-service; Doing necessary early stage for large screen projection handles;
Step S02 merges pretreated image projection on touch screen; Projection is fused into a complete picture rich in detail on giant-screen;
Step S03, the image on the collection touch curtain; Promptly gather the image of user when touching giant-screen;
Step S04 utilizes image analysis technology to analyze the described image that collects, the coordinate position and the action thereof of identification user touch screen image;
Step S05, the identifying information of the user's touch screen image that draws according to described graphical analysis is made corresponding processing to image;
Step S06 generates new image and turns back to step S01 and carries out the projection pre-service.
Fig. 2 is a kind of detail flowchart of an embodiment of method of constituting big screen multi-point touch screen:
Step S1 utilizes image partition software that the image that prestores in the computing machine is split into some; Because the projector distance of giant-screen touch-screen is restricted, therefore need projection to go out bigger image and just need use image fusion technology, make some blocks of images after breaking project by many projectors that to melt on the screen be a big complete image frame;
Step S2 carries out the edge reduction with some blocks of images after the partition and handles; Because projector, black is exactly throw light not, so after the edge reduction, the part of several projector's image overlaps will merge, and reaches to merge the purpose that becomes giant-screen.
Step S3, the light source that casts out owing to multi-section projector might distort, and because the problem on projecting plane also might distort, therefore need correct pattern distortion;
Above step S1, S2, S3 are the pretreated detailed process of step S01 projected image among Fig. 1.
Step S4, through above-mentioned processing, several image projection that several projectors will breaks respectively individual complete image that permeates on the touch screen;
Step S5, the image on user's touch screen can be made actions such as clicking, double-click, pull to image, and several infrared cameras carry out subregional collection to screen picture;
Step S6 carries out the edge reduction to the image of infrared camera collection and handles;
Step S7 corrects the image of distortion;
Step S8 becomes a complete image with several image co-registration that collect, and exports to the image analysis processing module;
Above step S6, S7, S8 are the detailed process of step S03 collection touch curtain epigraph among Fig. 1.
Step S9, utilize image analysis technology to analyze the described image that collects, the coordinate position of identification user touch screen image, and the action of user's touch screen, in case there is the people to click touch-screen, will occur a bright spot on the image, extract, then the position that the people clicks accurately can be located by contrast image.And multiple point touching then can analyze a plurality of points, by the multiple spot track algorithm, can confirm that whether this put drag operation, can judge then that by the frequency of occurrences of analyzing the touch point this point clicks or double click operation.
Step S10, the identifying information of the user's touch screen image that draws according to graphical analysis is made corresponding processing to image and is generated new image, simultaneously the new images that generates is exported to the projected image pretreatment module and carries out the projection pre-service.
Fig. 3 is the synoptic diagram of an embodiment of a kind of constituting big screen multi-point touch screen system, and comprising: projected image pretreatment module 1 is used for the image that projection is wanted in pre-service;
Image collecting device 4, the image when being used to gather described touch screen and being touched by the user;
Images acquired Fusion Module 5 is used to correct and merge the image of described image collecting device output;
Image analysis processing module 6 is used for the image of image collecting device output is carried out graphical analysis, and according to the graphical analysis result image is done corresponding processing.
Fig. 4 is the structural representation of projected image pretreatment module 1 among Fig. 3, comprising:
Fig. 5 is the structural representation of images acquired Fusion Module 5 among Fig. 3, comprising:
Fig. 6 is the hardware structure synoptic diagram of an embodiment of a kind of constituting big screen multi-point touch screen system,
Projector 7 links to each other with computing machine 9, and the image projection that is used for computing machine is exported is to touch screen 11;
Video camera 8 links to each other with computing machine 9, and the image when being used for collection touch curtain 11 and being touched by the user sends computing machine 9 simultaneously to and handles; 8 work of infrared lamp 10 auxiliary cameras, the infrared lamp source is to replenish the light source requirements that video camera is gathered.
Computing machine 9 stores application software such as image analysis processing.Image that will projection carries out the pre-service before the projection, utilizes image partition software to be split into some and carries out edge reduction process software and handle, and again processing is corrected in pattern distortion, and then sends projector to and project to giant-screen and merge; Image when several video cameras touch giant-screen with the user who collects sends computing machine to, after the processing through edge reduction process software and pattern distortion correction software and image fusion software, utilize image analysis software identification user to touch the coordinate position and the action thereof of large-screen image again, according to these graphical analyses result image is made corresponding operational processes and generated new image, new image is projected on the giant-screen through sending projector to after the projection pre-service.Because of having adopted the image analysis processing software technology, the real-time height, system can make real-time processing and produce corresponding reaction the action of user's touch screen, thereby has realized the function of giant-screen touch-screen system.
Above disclosed only is a kind of preferred embodiment in the embodiment of the invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1, a kind of system of constituting big screen multi-point touch screen is characterized in that, comprising:
The projected image pretreatment module is used for the image that projection is wanted in pre-service;
Projection arrangement, the image projection that is used for described projected image pretreatment module is exported is to touch screen;
Touch screen is used to show the image of described projection device, and is touched by the user;
Image collecting device, the image when being used to gather described touch screen and being touched by the user;
The image analysis processing module is used for the image of image collecting device output is carried out graphical analysis, and according to the graphical analysis result image is done corresponding processing.
2, the system of a kind of constituting big screen multi-point touch screen as claimed in claim 1 is characterized in that, described projected image pretreatment module comprises:
Image partition unit, be used for will projection image be split into some blocks of images;
Reduction processing unit in edge is used for some blocks of images of described image partition unit partition are carried out edge reduction processing;
The unit is corrected in pattern distortion, is used to correct the image of distortion.
3, the system of a kind of constituting big screen multi-point touch screen as claimed in claim 2 is characterized in that, described pattern distortion is corrected the unit and realized its function by adopting many reference mark bezier surface modification method.
4, the system of a kind of constituting big screen multi-point touch screen as claimed in claim 1 is characterized in that, also comprises: the images acquired Fusion Module is used to correct and merge the image of described image collecting device output.
5, the system of a kind of constituting big screen multi-point touch screen as claimed in claim 4 is characterized in that, described images acquired Fusion Module comprises:
Reduction processing unit in edge is used for several images of described image collecting device output are carried out edge reduction processing;
The unit is corrected in pattern distortion, is used to correct the edge reduction and handles the image that distortion takes place in the back;
The image co-registration unit is used to merge several images that unit output is corrected in described pattern distortion.
6, the system of a kind of constituting big screen multi-point touch screen as claimed in claim 5 is characterized in that, described pattern distortion is corrected the unit and realized its function by adopting many reference mark bezier surface modification method.
7, the system of a kind of constituting big screen multi-point touch screen as claimed in claim 1 is characterized in that, described image collecting device comprises infrared camera and infraluminescence pipe, and described infraluminescence pipe is used for auxiliary infrared camera and obtains image.
8, a kind of method of constituting big screen multi-point touch screen is characterized in that, may further comprise the steps:
(a) image that will projection carries out pre-service;
(b) pretreated image projection is merged on touch screen;
(c) image on the collection touch curtain;
(d) utilize image analysis technology to analyze the described image that collects, the coordinate position and the action thereof of identification user touch screen image;
(e) identifying information of the user's touch screen image that draws according to described graphical analysis is made corresponding processing to image;
(f) generate new image and carry out the projection pre-service.
9, the method for a kind of constituting big screen multi-point touch screen as claimed in claim 8 is characterized in that, step (a) comprising:
The imagery exploitation image partition software that computing machine is prestored is split into several images;
Several images after the partition are carried out the edge reduction to be handled;
Pattern distortion is corrected.
10, the method for a kind of constituting big screen multi-point touch screen as claimed in claim 8 is characterized in that, step (c) comprising:
Image on the image collecting device collection touch curtain;
The image that collects is carried out the gradually light processing in edge;
Pattern distortion is corrected;
The real time fusion image.
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| CNA2008100281724A CN101281441A (en) | 2008-05-19 | 2008-05-19 | System and method for constituting big screen multi-point touch screen |
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| CNA2008100281724A CN101281441A (en) | 2008-05-19 | 2008-05-19 | System and method for constituting big screen multi-point touch screen |
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| CN101937317A (en) * | 2010-09-26 | 2011-01-05 | 北京握奇数据系统有限公司 | Window management method and terminal |
| CN101968776A (en) * | 2010-10-19 | 2011-02-09 | 广东威创视讯科技股份有限公司 | Method and system for acquiring and outputting images |
| CN102238361A (en) * | 2010-04-22 | 2011-11-09 | 联想(北京)有限公司 | Terminal and display method thereof |
| CN101763198B (en) * | 2009-12-25 | 2012-03-28 | 中国船舶重工集团公司第七○九研究所 | Back projection type multi-point touch positioning method |
| CN102541488A (en) * | 2010-12-09 | 2012-07-04 | 深圳华强游戏软件有限公司 | Image processing method and system for realizing seamless alignment of projection screen |
| CN101695074B (en) * | 2009-09-28 | 2012-08-29 | 苏州品美信息科技有限公司 | Holographic interaction multimedia software system based on touch membrane |
| CN102654826A (en) * | 2011-05-27 | 2012-09-05 | 上海华博信息服务有限公司 | Curved surface correction information processing method and device based on laser locator |
| CN102681303A (en) * | 2011-08-15 | 2012-09-19 | 上海华博信息服务有限公司 | Method and device for processing projection calibration information on basis of information feedback |
| CN103997632A (en) * | 2014-05-27 | 2014-08-20 | 海信集团有限公司 | Electronic whiteboard and projection system |
| CN105376555A (en) * | 2015-12-11 | 2016-03-02 | 重庆环漫科技有限公司 | Stereo fusion playing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101695074B (en) * | 2009-09-28 | 2012-08-29 | 苏州品美信息科技有限公司 | Holographic interaction multimedia software system based on touch membrane |
| CN101763198B (en) * | 2009-12-25 | 2012-03-28 | 中国船舶重工集团公司第七○九研究所 | Back projection type multi-point touch positioning method |
| CN102238361A (en) * | 2010-04-22 | 2011-11-09 | 联想(北京)有限公司 | Terminal and display method thereof |
| CN102238361B (en) * | 2010-04-22 | 2013-07-31 | 联想(北京)有限公司 | Terminal and display method thereof |
| CN101937317A (en) * | 2010-09-26 | 2011-01-05 | 北京握奇数据系统有限公司 | Window management method and terminal |
| CN101937317B (en) * | 2010-09-26 | 2012-08-22 | 北京握奇数据系统有限公司 | Window management method and terminal |
| CN101968776A (en) * | 2010-10-19 | 2011-02-09 | 广东威创视讯科技股份有限公司 | Method and system for acquiring and outputting images |
| CN102541488A (en) * | 2010-12-09 | 2012-07-04 | 深圳华强游戏软件有限公司 | Image processing method and system for realizing seamless alignment of projection screen |
| CN102541488B (en) * | 2010-12-09 | 2015-02-04 | 深圳华强游戏软件有限公司 | Image processing method and system for realizing seamless alignment of projection screen |
| CN102654826A (en) * | 2011-05-27 | 2012-09-05 | 上海华博信息服务有限公司 | Curved surface correction information processing method and device based on laser locator |
| CN102681303A (en) * | 2011-08-15 | 2012-09-19 | 上海华博信息服务有限公司 | Method and device for processing projection calibration information on basis of information feedback |
| CN103997632A (en) * | 2014-05-27 | 2014-08-20 | 海信集团有限公司 | Electronic whiteboard and projection system |
| CN105376555A (en) * | 2015-12-11 | 2016-03-02 | 重庆环漫科技有限公司 | Stereo fusion playing method |
| CN107635120A (en) * | 2017-09-19 | 2018-01-26 | 南京乐飞航空技术有限公司 | A kind of method of multiple channel ball curtain Geometry rectification and Fusion Edges |
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Open date: 20081008 |