CN101923406A - Interactive projection system and method - Google Patents
Interactive projection system and method Download PDFInfo
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- CN101923406A CN101923406A CN2010102488416A CN201010248841A CN101923406A CN 101923406 A CN101923406 A CN 101923406A CN 2010102488416 A CN2010102488416 A CN 2010102488416A CN 201010248841 A CN201010248841 A CN 201010248841A CN 101923406 A CN101923406 A CN 101923406A
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Abstract
The invention discloses a kind of interactive projection system and method.This optical projection system comprises video process apparatus (11) and projection arrangement (12), and the video information of projection arrangement (12) receiver, video treating apparatus (11) output also projects to view field (13) with described video information.This optical projection system also comprises: interactive information generation device (14) is used to produce interactive information; Interactive information receiver module (15) is used to receive the interactive information that described interactive information generation device (14) produces; Interactive information processing module (16), described interactive information processing module (16) are connected with described interactive information receiver module (15) and are used to handle the interactive information that described interactive information receiver module (15) provides.Interactive information processing module (16) also is connected with described video process apparatus (11), result is exported to described video process apparatus (11).This interactive projection system does not need expensive specific screen, has low, the portable advantage of cost.
Description
Technical field
Video-projection of the present invention field more specifically, relates to interactive projection system and interactive projection method.
Background technology
Traditional optical projection system comprises computing machine and projector, and projector is connected the vision signal that is used for counter output and projects to screen with computing machine.The defective of this traditional optical projection system is, can not the content of projection be marked in projection process, operation such as modification, lacks interactivity.
In order to realize interactivity, a solution is to adopt expensive induction screen as screen.This induction screen is provided with a lot of sensors (for example pressure transducer or capacitive transducer), and these sensors are used to detect the operation of user on the induction screen, and testing result is fed back to computing machine.Computing machine carries out corresponding visualization processing according to this testing result, then visual content is projected to screen.This improved optical projection system can be carried out certain interaction process, still, this optical projection system cost height, complex structure does not possess portability.
Therefore, need a kind of interactive projection system cheaply badly.
Summary of the invention
In order to solve the problem that prior art exists, the invention provides a kind of interactive projection system cheaply.This interactive projection system comprises video process apparatus and projection arrangement, described projection arrangement receives the video information of described video process apparatus output and described video information is projected to view field, it is characterized in that, also comprise: the interactive information generation device is used to produce interactive information; The interactive information receiver module is used to receive the interactive information that described interactive information generation device produces; The interactive information processing module, described interactive information processing module is connected with described interactive information receiver module, is used to handle the interactive information that described interactive information receiver module provides; The interactive information processing module also is connected with described video process apparatus, result is exported to described video process apparatus.
Preferably, described interactive information generation device is for sending the device of infrared signal; Described interactive information receiver module comprises the infrared light inductor.
Preferably, the wavelength coverage of described infrared signal is 850 nanometer to 950 nanometers, or 860 nanometer to 880 nanometers.
Preferably, described interactive information receiver module also comprises infrared bandpass optical filter, the infrared signal that described infrared bandpass optical filter is passed in described infrared light inductor induction.
Preferably, described interactive device comprises shell, is installed to battery and light emitting diode in the shell, and described light emitting diode sends infrared signal when energising.
Preferably,, described interactive information processing module and described video process apparatus move in computing machine, and described interactive information receiver module is installed in the described throwing computing machine.
Preferably, described projection arrangement comprises that light emitting diode is as projection light source.
Preferably, described interactive information processing module comprises alignment unit, and described alignment unit defines effective interaction area according to default calibration point, and described interaction area is positioned at described view field.
Another object of the present invention provides a kind of method of interactive projection cheaply.This interactive projection method comprises: by projection arrangement video information is projected to view field; It is characterized in that, further comprising the steps of: as in described view field, to produce interactive information by the interactive information generation device; Receive described interactive information by the interactive information receiver module; Handle the interactive information of described reception by the interactive information processing module; By described projection arrangement the result of described interactive information processing module is projected to described view field.
Preferably, described method also comprises calibration process, and described calibration process may further comprise the steps: go out at least four calibration points in view field's projection; At least state four calibration points in institute respectively and produce interactive information; Determine the coordinate of described at least four calibration points according to described interactive information, and determine effective interaction area according to the coordinate of described at least four calibration points.
Preferably, described " handling the interactive information of described reception by the interactive information processing module " step also comprises: judge whether the interactive information that is received results from described interaction area, if, project to described view field with regard to the interactive information of handling after described interactive information also will be handled, otherwise, abandon described interactive information.
Implement embodiments of the invention, can common screen in addition common wall on carry out projection, and can in projection process, realize alternately.This interactive projection system does not need to use expensive specific screen, has reduced cost.
Description of drawings
Fig. 1 is the configuration diagram of interactive projection system of the present invention;
Fig. 2 is the synoptic diagram of the interactive projection system of one embodiment of the invention;
Fig. 3 is the process flow diagram of the interactive projection method that provides of one embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Fig. 1 is the configuration diagram of interactive projection system of the present invention.With reference to figure 1, this interactive projection system comprises video process apparatus 11, projection arrangement 12, interactive information generation device 14, interactive information receiver module 15 and interactive information processing module 16.
Wherein, video process apparatus 11 is used for Video processing, is used for the vision signal of projection then to projection arrangement 12 outputs.Projection arrangement 12 is connected with video process apparatus 11, the video information of receiver, video treating apparatus 11 output, and video information projected to view field 13.The projection arrangement 12 preferred light emitting diodes that adopt are as projection light source, to reduce the energy consumption of projection arrangement 11.View field 13 can be common screen, even can be smooth wall.
Interactive information generation device 14 uses for the user, is used to produce interactive information, especially produces interactive information in view field 13, and this interactive information is preferably transmitted by infrared waves.Interactive information receiver module 15 is used to receive the interactive information that interactive information generation device 14 produces.Interactive information processing module 16 is connected with interactive information receiver module 15, is used to handle the received interactive information of interactive information receiver module 15.Interactive information processing module 16 can be wired for example USB (USB (universal serial bus)) with the connected mode of interactive information receiver module 15, also can be wireless for example bluetooth or WiFi (Wireless Fidelity).In addition, interactive information processing module 16 also is connected with video process apparatus 11, result being exported to video process apparatus 11, and projects to view field 13 by projection arrangement 12, thereby realizes mutual in the projection process.
Fig. 2 is the synoptic diagram of the interactive projection system that provides of one embodiment of the invention.With reference to figure 1 and Fig. 2, in the present embodiment, video process apparatus 11 and interactive information processing module 16 realize in computing machine.Interactive information receiver module 15 also is installed to computing machine, that is, interactive information receiver module 15 can be fixed to computing machine, also can be detachably connected to computing machine by relevant signal wire.Projection arrangement 12 can pass through VGA (Video Graphics Array) interface, S terminal or HDMI (high-definition multimedia interface) interface and be connected with computing machine.In this instructions and claims, the electronic equipment that computing machine general reference has data-handling capacity includes but not limited to for example iPad etc. of Apple of Table top type computing machine (desktop computer), portable computer (laptop), tablet computer (tablet computer).Interactive information generation device 14 is for sending the device of infrared signal, and this device is made the shape (being referred to as " infrared pen " in this instructions) of pen, so that the user uses.Interactive information receiver module 15 comprises infrared light inductor and infrared bandpass optical filter.Wherein, infrared bandpass optical filter filters out the infrared light that the article beyond the infrared pen send, thereby the infrared light of only allowing infrared pen passes.The infrared light inductor then is used for responding to the infrared signal of passing infrared bandpass optical filter, and in other words, the infrared light inductor is only responded to the signal of infrared pen, thereby has improved mutual accuracy.
In the present embodiment, the infrared light inductor is infrared cmos sensor, and interactive information receiver module 15 is integrated in the projection arrangement 12.But the present invention is not limited to this situation.For example, interactive information receiver module 15 can be integrated in the computing machine 11, and the infrared light inductor can adopt the infrared CCD sensor.Implement the present invention, use a cmos sensor or ccd sensor just enough.
Preferably, the wavelength coverage of the infrared signal of infrared pen is that 850 nanometers (nm) are to 950 nanometers; More preferably, the wavelength coverage of infrared pen is 860 nanometer to 880 nanometers.The infrared signal of this scope has propagation distance far away, so that interactive information receiver module 15 receives this infrared signal.In one embodiment of the invention, the wavelength of the infrared signal of infrared pen is 870 nanometers, and in this case, the infrared signal that infrared pen produces in the scope of 1.6 meters to 2.6 meters of the infrared cmos sensors of distance can both be received by cmos sensor.
The infrared pen that adopts in the one embodiment of the invention comprises shell, is installed to battery, light emitting diode and elastic force switch in the shell.A moving contact of elastic force switch is connected with the nib of infrared pen, and when the user used nib to click or write in view field 13, the conducting light emitting diode thereby the elastic force switch is squeezed sent infrared signal during the light emitting diode conducting.This infrared signal is received by interactive information receiver module 15, and is handled by interactive information processing module 16.In an alternative embodiment of the present invention, the elastic force switch is the form of button, when the user press...withes one's finger down this button, and the light emitting diode conducting, the infrared pen of this replacement does not need the user to use nib to go to push view field also can send infrared light.In another one embodiment of the present invention, elastic switch both can be by the nib space, also can be by button control, under this mode, meeting conducting light emitting diode when the user pushes view field with nib, the user also can come the conducting light emitting diode by the finger presses button.
In a preferred embodiment of the present invention, interactive information processing module 16 adopts software to realize, operates in the computing machine.Interactive information processing module 16 also comprises an alignment unit, is used for before projection or projection process is calibrated.The main process of calibration is as described below:
At first, alignment unit goes out some calibration points by projection arrangement 12 in view field's projection.Preferably, the quantity of calibration point is four, and these four calibration points are positioned at four corners of view field;
Then, the user uses infrared pen to click each calibration point successively, thereby produces interactive information (generation infrared signal) at each calibration point.This interactive signal by the infrared sensor mobile phone after, be transferred in the computing machine; Alignment unit is determined the coordinate of each calibration point according to this interactive information, and determines effective interaction area according to the coordinate of these calibration points.
As seen, interaction area can be equal to view field, also can be more smaller than view field.An effect of interaction area is to judge which interactive information is that effectively which interactive information is invalid in the projection process.For example, if the interactive information that is received produces in interaction area, just be considered as effectively, this interactive projection system will carry out subsequent treatment to this interactive information.Otherwise, if beyond interaction area, produce during the interactive information that is received, it is invalid just to be considered as, and can directly abandon this interactive information, thereby improve mutual accuracy, and alleviate the treatment capacity of computing machine.
Set forth the course of work of interactive projection system of the present invention below in conjunction with Fig. 3.
After the beginning step 100, in step 101, whether the software detection in the computing machine has connected ready projection arrangement.If do not connect as yet, perhaps the projection arrangement that is connected is not ready as yet, and computing machine just detects again, perhaps periodically detects again.If the projection arrangement that is connected is ready, flow process enters step 102.
In the step 102, judge whether the user has triggered calibration command, for example, judge whether the user supresses the calibration knob of projection arrangement, perhaps whether supresses the calibration knob of computer software.If the user does not trigger calibration command, flow process enters step 104; Otherwise flow process is introduced into step 103, calibrates, and then enters step 104.Set forth calibration process above, repeated no more.
In the step 104, the software in the computing machine judges whether to have received interaction data.If received interaction data, flow process enters step 105; Otherwise flow process enters step 108.
In the step 105, the software in the computing machine obtains the coordinate (that is the position when, infrared pen produces this interaction data) of this interaction data from cmos sensor.Then, flow process enters step 106.
In the step 106, carry out relevant processing, for example deformation process (warping) according to alignment settings.Then, flow process enters step 107.
In the step 107, after above-mentioned line feed was handled, analog mouse was pressed in the position of correspondence.For example, under the situation of using paintbrush, after analog mouse is pressed, will leave a trace at correspondence position.Then, flow process turns back to step 102, begins new circulation.
In above-mentioned steps 104, if judging, computer software do not receive interaction data, so, flow process will enter step 108.In the step 108, computer software judges whether mouse is in the state of " pressing ", if flow process enters step 109, otherwise flow process will be returned step 102, begin new circulation.
As mentioned above, when the user used infrared pen to click in certain position of view field, the software in the computing machine also will be clicked (press mouse in step 107, discharge mouse in step 109) at the position of correspondence analog mouse.In one embodiment, has paintbrush tool on the picture displayed in the computing machine, mouse simulated when clicking and will leave a trace in the position of correspondence, thereby reflect the click of infrared pen visually, this visual result arrives view field's (perhaps interaction area) by projection device subsequently, thereby has realized reciprocal process.
When the user uses infrared pen to write or draw lines in view field, software in the computing machine will be pressed at the correspondence position analog mouse continuously, and the movement locus of the most infrared pen is visual (for example, use paintbrush to reproduce the movement locus of infrared pen), by projection arrangement this movement locus is projected to view field's (perhaps interaction area) then, thereby realize exchange process.
As mentioned above, implement the present invention, do not need to use expensive specific screen just can realize interactively projection.Interactive projection system of the present invention has being easy to carry, is convenient to move, cost is low, advantages of simple operation.The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. interactive projection system, comprise video process apparatus (11) and projection arrangement (12), described projection arrangement (12) receives the video information of described video process apparatus (11) output and described video information is projected to view field (13), it is characterized in that, also comprises:
Interactive information generation device (14) is used to produce interactive information;
Interactive information receiver module (15) is used to receive the interactive information that described interactive information generation device (14) produces;
Interactive information processing module (16), it is connected with described interactive information receiver module (15), is used to handle the interactive information that described interactive information receiver module (15) receives; Described interactive information processing module (16) also is connected with described video process apparatus (11), result is exported to described video process apparatus (11).
2. interactive projection system according to claim 1 is characterized in that, described interactive information generation device (14) is for sending the device of infrared signal; Described interactive information receiver module (15) comprises the infrared light inductor.
3. interactive projection system according to claim 2 is characterized in that, the wavelength coverage of described infrared signal is 850 nanometer to 950 nanometers, or 860 nanometer to 880 nanometers.
4. interactive projection system according to claim 2 is characterized in that, described interactive information receiver module (15) also comprises infrared bandpass optical filter, the infrared signal that described infrared bandpass optical filter is passed in described infrared light inductor induction.
5. interactive projection system according to claim 2, described interactive device (14) comprise shell, are installed to battery and light emitting diode in the shell, and described light emitting diode sends infrared signal when energising.
6. according to any described interactive projection system in the claim 1 to 5, it is characterized in that, described interactive information processing module (16) and described video process apparatus (11) move in computing machine, and described interactive information receiver module (15) is installed in the described computing machine.
7. interactive projection system according to claim 6 is characterized in that described projection arrangement comprises that light emitting diode is as projection light source.
8. interactive projection system according to claim 6, it is characterized in that, described interactive information processing module comprises alignment unit, and described alignment unit is determined effective interaction area according to default calibration point, and described interaction area is positioned at described view field (13).
9. an interactive projection method comprises: by projection arrangement video information is projected to view field;
It is characterized in that described method is further comprising the steps of:
In described view field, produce interactive information by the interactive information generation device;
Receive described interactive information by the interactive information receiver module;
Handle the interactive information of described reception by the interactive information processing module;
By described projection arrangement the result of described interactive information processing module is projected to described view field.
10. interactive projection method according to claim 9 is characterized in that, also comprises calibration process, and described calibration process may further comprise the steps:
Go out at least four calibration points in view field's projection;
At least state four calibration points in institute respectively and produce interactive information;
Determine the coordinate of described at least four calibration points according to described interactive information, and determine effective interaction area according to the coordinate of described at least four calibration points.
11. interactive projection method according to claim 10 is characterized in that, described " handling the interactive information of described reception by the interactive information processing module " step also comprises:
Judge whether the interactive information that is received results from described interaction area, if, project to described view field with regard to the interactive information of handling after described interactive information also will be handled, otherwise, described interactive information abandoned.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102488416A CN101923406A (en) | 2010-07-29 | 2010-07-29 | Interactive projection system and method |
| HK10110120A HK1144886A2 (en) | 2010-07-29 | 2010-10-28 | Interactive led projector system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102488416A CN101923406A (en) | 2010-07-29 | 2010-07-29 | Interactive projection system and method |
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| CN101923406A true CN101923406A (en) | 2010-12-22 |
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| CN2010102488416A Pending CN101923406A (en) | 2010-07-29 | 2010-07-29 | Interactive projection system and method |
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| CN (1) | CN101923406A (en) |
| HK (1) | HK1144886A2 (en) |
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| CN102662498A (en) * | 2012-04-16 | 2012-09-12 | 中科华核电技术研究院有限公司 | Wireless control method and system for projection demonstration |
| CN102768578A (en) * | 2011-05-03 | 2012-11-07 | 郑进 | Projection teaching method |
| CN102945105A (en) * | 2012-12-02 | 2013-02-27 | 周恺弟 | Multipoint portable optical touch screen and positioning method thereof |
| CN103425355A (en) * | 2013-07-08 | 2013-12-04 | 周恺弟 | Omnidirectional camera structured portable optical touch screen and positioning calibrating method thereof |
| CN104156074A (en) * | 2014-09-01 | 2014-11-19 | 深圳市云鼠科技开发有限公司 | Fly mouse projection device |
| CN104880935A (en) * | 2015-05-04 | 2015-09-02 | 联想(北京)有限公司 | Information processing method and holographic projection system |
| CN107682595A (en) * | 2017-08-14 | 2018-02-09 | 中国科学院深圳先进技术研究院 | A kind of alternative projection method, system and computer-readable recording medium |
| CN113267944A (en) * | 2021-05-14 | 2021-08-17 | 北京星汉云图文化科技有限公司 | Integral desktop projection device |
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| CN102768578A (en) * | 2011-05-03 | 2012-11-07 | 郑进 | Projection teaching method |
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| CN103425355B (en) * | 2013-07-08 | 2016-09-07 | 狒特科技（北京）有限公司 | The portable optical touch screen of a kind of omnidirectional camera structure and location calibration steps thereof |
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| CN107682595A (en) * | 2017-08-14 | 2018-02-09 | 中国科学院深圳先进技术研究院 | A kind of alternative projection method, system and computer-readable recording medium |
| CN107682595B (en) * | 2017-08-14 | 2019-12-13 | 中国科学院深圳先进技术研究院 | interactive projection method, system and computer readable storage medium |
| CN113267944A (en) * | 2021-05-14 | 2021-08-17 | 北京星汉云图文化科技有限公司 | Integral desktop projection device |
| CN113267944B (en) * | 2021-05-14 | 2022-12-06 | 北京星汉云图文化科技有限公司 | Integral desktop projection device |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1144886A2 (en) | 2011-03-11 |
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Application publication date: 20101222 |