CN101446875B - Interactive display screen and interactive display method - Google Patents
Interactive display screen and interactive display method Download PDFInfo
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- CN101446875B CN101446875B CN2008102413893A CN200810241389A CN101446875B CN 101446875 B CN101446875 B CN 101446875B CN 2008102413893 A CN2008102413893 A CN 2008102413893A CN 200810241389 A CN200810241389 A CN 200810241389A CN 101446875 B CN101446875 B CN 101446875B
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Abstract
The invention provides an interactive display screen and an interactive display method. The interactive display screen comprises a display screen (300), an imaging device (200), a light position obtaining device (400) and a processing unit (500), wherein the imaging device is used for forming an image containing a space position of an object (100) with specific optical information; the light position obtaining device is used for converting the image which is formed by the imaging device (200) and contains space position information of the object (100) with the specific optical information into a corresponding position electrical signal; and the processing unit is used for processing the position electrical signal transmitted by the light position obtaining device (400) and controlling the display screen (300) to make a corresponding display. The invention has the advantages that interactive input can be realized without extra demand to the display screen; and the invention is suitable for any display screens such as projection screens, CRT display screens, or the like, thereby realizing the interactive input of a large screen with lower cost.
Description
Technical field
The present invention relates to a kind of interactive display screen and the interactive method that shows.
Background technology
Interactively input is meant user's direct control in images displayed, and can in time demonstrate user's corresponding operating, and interactive mode is imported the increasing various occasions that are applied to.Wherein touch pad is widely applied to fields such as PDA, notebook computer, mobile phone, industrial computer, large screen television, electronic whiteboard as the most frequently used interaction type input apparatus.Compare with traditional mouse, keyboard, the operation of adopting touch pad directly in display frame, to carry out is directly perceived and easy, has received people's welcome.
But in the large screen display field; The use of touch pad is also fewer, and this is to realize interactive input because existing touchpad technology often adopts near (contact) sensor, in case but display screen size is excessive; Then manufacture difficulty strengthens, and cost also can sharply rise.
Summary of the invention
Technical matters to be solved by this invention provides a kind of interactive display screen and the interactive method that shows, can import alternately with the carrying out of higher reaction velocity and precision on the large-area display screen.
The objective of the invention is to realize through following technical scheme:
A kind of interactive display screen comprises: display screen;
Imaging device is used for the object with specific light information is formed the picture that comprises its spatial positional information;
The optical position deriving means is used for formed said imaging device, as to comprise the object space positional information with specific light information picture and is converted into corresponding position electric signal;
Processing unit is used to handle the position electric signal that said optical position deriving means is sent, and controls said display screen and make corresponding demonstration.
More particularly, in order to obtain the positional information of said object, need confirm a lateral coordinates and along slope coordinate to it with this display plane with respect to the display plane of said display screen with specific light information.Said imaging device comprises: be in two catoptrons that certain angle is provided with.As long as these two catoptrons are not parallel to each other, promptly be in certain angle, then can both decomposite in these two catoptron imagings comprise said object with specific light information about this display plane it is confirmed corresponding lateral coordinates and along slope coordinate.
As an embodiment of interactive display screen of the present invention, the display plane of said display screen is a rectangle; Said imaging device comprises: first lateral mirror, second lateral mirror, first vertical catoptron and second vertical catoptron; Said first lateral mirror and second lateral mirror are separately positioned on the marginal position place of the relative widthwise edge of the display plane of said display screen, and angled with said display plane; The marginal position place on vertical limit that the display plane that said first vertical catoptron and second vertical catoptron are separately positioned on said display screen is relative, and angled with said display plane.
Corresponding with it, said optical position deriving means comprises:
The first optical position deriving means is used for formed said first lateral mirror, as to comprise the object space positional information with specific light information picture and is converted into corresponding position electric signal;
The second optical position deriving means is used for formed said second lateral mirror, as to comprise the object space positional information with specific light information picture and is converted into corresponding position electric signal;
The 3rd optical position deriving means is used for being converted into corresponding position electric signal to said first vertical catoptron picture formed, that comprise the object space positional information with specific light information;
With the 4th optical position deriving means, be used for being converted into corresponding position electric signal to said second vertical catoptron picture formed, that comprise object space positional information with specific light information.
In order better to obtain the picture that comprises the object space positional information with specific light information, the optical position deriving means comprises: light path apparatus for shaping and optical sensor; Said light path apparatus for shaping comprises: be arranged on catoptron and lens between said optical sensor and the said imaging device, be used for being sent to said optical sensor to the formed picture that comprises its spatial positional information of said imaging device; Said optical sensor converts light signal into corresponding position electric signal, and is sent to said processing unit.
Said optical sensor adopts COMS imageing sensor, ccd image sensor or position sensitive detector to obtain corresponding position electric signal.
A kind of method that adopts the interactive mode demonstration of interactive display screen may further comprise the steps:
Object with specific light information is near described interactive display screen;
Imaging device forms the picture that comprises its spatial positional information to the object with specific light information;
Optical position deriving means picture formed said imaging device, that comprise the object space positional information with specific light information is converted into corresponding position electric signal;
The position electric signal that the said optical position deriving means of processing unit processes is sent, and control said display screen and make corresponding demonstration.
In a kind of embodiment of the interactive method that shows of the present invention, said object with specific light information comprises: the light source that sends specific light.If when same interactive display screen has two or more objects with specific light information simultaneously, said processing unit is to tell the different light that light source sent.The way that can adopt has: the different included light wavelengths that light source sent of the object with specific light information are distinguishing.
In the another kind of embodiment of the interactive method that shows of the present invention; Said object with specific light information is the certain objects of unautogenous light; Promptly as pointing perhaps common non-luminous indication pen etc.; Like this, said processing unit obtains this through image recognition algorithm and has the position of the object of specific light information.
In order further to improve the effect of interactive input, said display screen has feeler, and the conversion of signals of the power that said object with specific light information is contacted with said display screen is corresponding electric signal, and is sent to said processing unit processes.
Compared with prior art the invention has the advantages that; Need there be extra requirement can realize interactively input to display screen itself; Be applicable to any display screen, for example therefore projection screen or CRT display screen etc. can realize the interactive mode input of giant-screen with lower cost.
Description of drawings
Fig. 1 is the three-dimensional structure diagram of first kind of embodiment of interactive display screen of the present invention;
Fig. 2 is the sectional view of first kind of embodiment of interactive display screen of the present invention;
Fig. 3 is the synoptic diagram of the projection location of first kind of embodiment of interactive display screen of the present invention;
Fig. 4 is that first kind of embodiment of interactive display screen of the present invention is to a synoptic diagram with object localization of specific light information;
Fig. 5 is that first kind of embodiment of interactive display screen of the present invention is to two synoptic diagram with object localization of specific light information;
Fig. 6 is the sectional view of second kind of embodiment of interactive display screen of the present invention;
Fig. 7 is the sectional view of the third embodiment of interactive display screen of the present invention;
Fig. 8 is the sectional view of the 4th kind of embodiment of interactive display screen of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the present invention is described further.
As depicted in figs. 1 and 2, interactive display screen should comprise: display screen 300, imaging device 200, optical position deriving means 400 and processing unit 500.Said imaging device 200 is used for the object 100 with specific light information is formed the picture that comprises its spatial positional information.Optical position deriving means 400 is used for being converted into corresponding position electric signal to said imaging device 200 pictures formed, that comprise object 100 spatial positional informations with specific light information.Said processing unit 500 is used to handle the position electric signal that said optical position deriving means 400 is sent, and controls said display screen 300 and make corresponding demonstration.
Specifically, the display plane of said display screen 300 is a rectangle.Said imaging device 200 comprises: first lateral mirror 211, second lateral mirror, 212, first vertical catoptron 221 and second vertical catoptron 222.Said first lateral mirror 211 and second lateral mirror 212 are separately positioned on the marginal position place of the relative widthwise edge of the display plane of said display screen 300, and angled with said display plane; The marginal position place on vertical limit that the display plane that said first vertical catoptron 221 and second vertical catoptron 222 are separately positioned on said display screen 300 is relative, and angled with said display plane.The catoptron of said imaging device 200 and said display plane are angled can be convenient to imaging.
Corresponding with it, said optical position deriving means 400 comprises: the first optical position deriving means 401, the second optical position deriving means 402, the 3rd optical position deriving means 403 and the 4th optical position deriving means 404.Wherein, the first optical position deriving means 401 is used for being converted into corresponding position electric signal to said first lateral mirror, 211 pictures formed, that comprise object 100 spatial positional informations with specific light information; The second optical position deriving means 402 is used for being converted into corresponding position electric signal to said second lateral mirror, 212 pictures formed, that comprise object 100 spatial positional informations with specific light information; The 3rd optical position deriving means 403 is used for being converted into corresponding position electric signal to said first vertical catoptron 221 pictures formed, that comprise object 100 spatial positional informations with specific light information; Be used for being converted into corresponding position electric signal to said second vertical catoptron 222 pictures formed, that comprise object 100 spatial positional informations with the 4th optical position deriving means 404 with specific light information.
In order better to obtain the picture that comprises the object space positional information with specific light information, optical position deriving means 400 comprises: light path apparatus for shaping 410 and optical sensor 420.Said light path apparatus for shaping 410 comprises: be arranged on reflection unit and lens between said optical sensor 420 and the said imaging device 200, be used for being sent to said optical sensor 420 to the said imaging device 200 formed pictures that comprise its spatial positional information.Said optical sensor 420 converts light signal into corresponding position electric signal, and is sent to said processing unit 500.
Said optical sensor 420 adopts COMS imageing sensor, ccd image sensor or position sensitive detector to obtain corresponding position electric signal.
The corresponding said first optical position deriving means 401, the second optical position deriving means 402, the 3rd optical position deriving means 403 and the 4th optical position deriving means 404 all have mutual physically separated optical sensor 420 respectively.And in certain embodiments, can a shared optical sensor of physically integrating between a plurality of optical position deriving means.
Adopt the method for the interactive mode demonstration of described interactive display screen may further comprise the steps:
The object 100 that 200 pairs of imaging devices have specific light information forms the picture that comprises its spatial positional information;
Optical position deriving means 400 is converted into corresponding position electric signal to said imaging device 200 pictures formed, that comprise object 100 spatial positional informations with specific light information;
Wherein, said display screen 300 has feeler, and the conversion of signals of the power that said object 100 with specific light information is contacted with said display screen 300 is corresponding electric signal, and is sent to said processing unit 500 and handles.
Like Fig. 3 and shown in Figure 4, when the angle of the display plane of the catoptron of said imaging device 200 and said display screen 300 is 135 °.Said object 100 with specific light information forms four pictures by first lateral mirror 211, second lateral mirror, 212, first vertical catoptron 221 and second vertical catoptron 222 respectively.The above-mentioned x direction that laterally is made as, the above-mentioned y direction that vertically is made as.Two catoptrons placing along the x direction are respectively 4x ', 4x to the picture of 100 one-tenth on said object with specific light information ", be 4y ' along the catoptron of y direction to the picture of 100 one-tenth on said object with specific light information, 4y ".Because the principle of rectangular projection, 4x ' and 4x " are not touched the influence with the displacement of pen on the y direction in the position that touches the projection on the plane; In like manner, 4y ' and 4y " are not touched the influence with the displacement of pen on the x direction in the position that touches the projection on the plane.
For example, said object 100 with specific light information moves to reposition 100 ', and through said imaging device 200 catoptrons imaging, its picture also changes.But iff is moving of x direction, and then the projected position of its y direction does not change.
Obviously, in 100 formed by the said object with specific light information of 200 pairs of said imaging devices, as to comprise its spatial positional information picture, include the positional information of object 100 with specific light information.Wherein, can obtain the information of the x direction position of said object 100 with specific light information along the lateral mirror 211,212 of x direction setting; Can obtain the information of the y direction position of said object 100 with specific light information along the lateral mirror 221,222 of y direction setting, the position that the said object 100 with specific light information that so also just can obtain to confirm is confirmed on the display panel of said display screen 300.
Light path apparatus for shaping 410 is equipped with said imaging device 200, and said picture with object 100 of specific light information is sent to optical sensor 420, changes into to include said position electric signal with object 100 positional informations of specific light information.
If display plane is the curvilinear plane of a sealing, for example round, then can be provided with along the catoptron of its border seal curve, this moment, this catoptron can think to have infinite a plurality of reflecting surface, promptly infinite a plurality of catoptrons.
Obviously, as long as minimum have two imaging surfaces that are in certain angle, as long as said imaging device is in two catoptrons that certain angle is provided with 200 minimum comprising, for the ease of data processing, the axis direction of two catoptrons can be set to vertical each other.And in the present embodiment, it is in order to prevent that said object 100 with specific light information from having barrier to block that said imaging device 200 uses the four sides catoptrons, and the redundancy setting of unnecessary catoptron can guarantee reliable operation.
As shown in Figure 5, as Fig. 4 different be to have two different objects 101,102 in same said interactive display screen, to work simultaneously with specific light information.For realizing can adopting multiple mode to the separation of the coordinate of the different objects with specific light information, for example, the different objects with specific light information have various colors, perhaps have different shapes, even can send light of different colours or the like.Said processing unit 500 can be from isolating the different objects with specific light information, and read their coordinate respectively.Wherein, the coordinate with object 101 of specific light information be respectively (X1 ', X1 ", Y1 ', Y1 "), the coordinate with object 102 of specific light information be respectively (X2 ', X2 ", Y2 ', Y2 ").
In the embodiment of interactive display screen as shown in Figure 6, said light path apparatus for shaping 410 comprises the light that receives said imaging device 200 successively and is sent to said optical sensor 420: first reflection unit 411, lens combination 413 and second reflection unit 412.
In the embodiment of interactive display screen as shown in Figure 7, said light path apparatus for shaping 410 comprises the light that receives said imaging device 200 successively and is sent to said optical sensor 420: first reflection unit 411 and lens combination 413.
As shown in Figure 8, said object 100 with specific light information comprises: the light source that sends specific light.If when same interactive display screen has two or more objects with specific light information simultaneously, said processing unit is to tell the different light that light source sent.The way that can adopt has: the different included light wavelengths that light source sent of the object with specific light information are distinguishing.
And in other above-mentioned embodiment, said object 100 with specific light information is the certain objects of unautogenous light, promptly as pointing perhaps common non-luminous indication pen etc.Like this, said processing unit obtains this through image recognition algorithm and has the position of the object of specific light information.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (8)
1. interactive display screen comprises: display screen (300), it is characterized in that, and also comprise:
Imaging device (200) is used for the object (100) with specific light information is formed the picture that comprises its spatial positional information;
Optical position deriving means (400) is used for formed said imaging device (200), as to comprise object (100) spatial positional information with specific light information picture and is converted into corresponding position electric signal;
Processing unit (500) is used to handle the position electric signal that said optical position deriving means (400) is sent, and controls said display screen (300) and make corresponding demonstration;
Wherein, said imaging device (200) comprising: be in two catoptrons that certain angle is provided with;
The display plane of said display screen (300) is a rectangle; Said imaging device (200) comprising: first lateral mirror (211), second lateral mirror (212), first vertical catoptron (221) and second vertical catoptron (222); Said first lateral mirror (211) and second lateral mirror (212) are separately positioned on the marginal position place of the relative widthwise edge of the display plane of said display screen (300), and angled with said display plane; Said first vertical catoptron (221) and second vertical catoptron (222) are separately positioned on the marginal position place on the relative vertical limit of the display plane of said display screen (300), and angled with said display plane.
2. interactive display screen as claimed in claim 1 is characterized in that, said optical position deriving means (400) comprising:
The first optical position deriving means (401) is used for formed said first lateral mirror (211), as to comprise object (100) spatial positional information with specific light information picture and is converted into corresponding position electric signal;
The second optical position deriving means (402) is used for formed said second lateral mirror (212), as to comprise object (100) spatial positional information with specific light information picture and is converted into corresponding position electric signal;
The 3rd optical position deriving means (403) is used for formed said first vertical catoptron (221), as to comprise object (100) spatial positional information with specific light information picture and is converted into corresponding position electric signal;
With the 4th optical position deriving means (404), be used for formed said second vertical catoptron (222), as to comprise object (100) spatial positional information picture and be converted into corresponding position electric signal with specific light information.
3. interactive display screen as claimed in claim 1 is characterized in that, optical position deriving means (400) comprising: light path apparatus for shaping (410) and optical sensor (420); Said light path apparatus for shaping (410) comprising: be arranged on reflection unit and lens between said optical sensor (420) and the said imaging device (200), be used for being sent to said optical sensor (420) to the formed picture that comprises its spatial positional information of said imaging device (200); Said optical sensor (420) converts light signal into corresponding position electric signal, and is sent to said processing unit (500).
4. interactive display screen as claimed in claim 3 is characterized in that, said optical sensor (420) adopts COMS imageing sensor, ccd image sensor or position sensitive detector to obtain corresponding position electric signal.
5. the method that the interactive mode of the described interactive display screen of arbitrary claim shows in employing such as the claim 1 to 4 is characterized in that, may further comprise the steps:
Object (100) with specific light information is near described interactive display screen;
Imaging device (200) forms the picture that comprises its spatial positional information to the object (100) with specific light information;
Optical position deriving means (400) picture formed said imaging device (200), that comprise object (100) spatial positional information with specific light information is converted into corresponding position electric signal;
Processing unit (500) is handled the position electric signal that said optical position deriving means (400) is sent, and controls said display screen (300) and make corresponding demonstration.
6. the interactive method that shows as claimed in claim 5 is characterized in that said object (100) with specific light information comprising: the light source that sends specific light.
7. the interactive method that shows as claimed in claim 5 is characterized in that said object (100) with specific light information is the certain objects of unautogenous light; Said processing unit (500) obtains this through image recognition algorithm and has the position of the object (100) of specific light information.
8. the interactive method that shows as claimed in claim 5; It is characterized in that; Said display screen (300) has feeler; The conversion of signals of the power that said object (100) with specific light information is contacted with said display screen (300) is corresponding electric signal, and is sent to said processing unit (500) and handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102413893A CN101446875B (en) | 2008-12-22 | 2008-12-22 | Interactive display screen and interactive display method |
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| CN2008102413893A CN101446875B (en) | 2008-12-22 | 2008-12-22 | Interactive display screen and interactive display method |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010175181 Division CN101819493B (en) | 2008-12-22 | 2008-12-22 | Interactive display screen and method thereof |
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| CN101446875A CN101446875A (en) | 2009-06-03 |
| CN101446875B true CN101446875B (en) | 2012-02-29 |
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| CN2008102413893A Expired - Fee Related CN101446875B (en) | 2008-12-22 | 2008-12-22 | Interactive display screen and interactive display method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929407A (en) * | 2012-10-09 | 2013-02-13 | 中山大学 | System and method for operating and controlling space contents of three-dimensional light field on basis of space mouse and menu |
| CN101819493B (en) * | 2008-12-22 | 2013-03-06 | 清华大学深圳研究生院 | Interactive display screen and method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196362B (en) * | 2012-01-09 | 2016-05-11 | 西安智意能电子科技有限公司 | A kind of system of the three-dimensional position for definite relative checkout gear of emitter |
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2008
- 2008-12-22 CN CN2008102413893A patent/CN101446875B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819493B (en) * | 2008-12-22 | 2013-03-06 | 清华大学深圳研究生院 | Interactive display screen and method thereof |
| CN102929407A (en) * | 2012-10-09 | 2013-02-13 | 中山大学 | System and method for operating and controlling space contents of three-dimensional light field on basis of space mouse and menu |
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| Publication number | Publication date |
|---|---|
| CN101446875A (en) | 2009-06-03 |
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