CN102223508A - Front projection control system and method thereof - Google Patents
Front projection control system and method thereof Download PDFInfo
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- CN102223508A CN102223508A CN2010101467037A CN201010146703A CN102223508A CN 102223508 A CN102223508 A CN 102223508A CN 2010101467037 A CN2010101467037 A CN 2010101467037A CN 201010146703 A CN201010146703 A CN 201010146703A CN 102223508 A CN102223508 A CN 102223508A
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Abstract
The invention discloses a front protection control method, comprising the following steps: transmitting an image of a target object shot by a first projection device to a projector for projection to form a projection area; detecting the operation of a specific gesture on the projection area according to the image of a projection area shot by a second projection device, when the projection area is operated by the specific gesture, generating a first detection signal; retrieving a plurality of symbols to the projector for projection so as to form a plurality of control panels of the control symbols in the projection area according to the first detection signal; detecting the operation of the control symbols according to the image of the control panel shot by a third projection device; and when the control symbols are operated, generating a second detection signal corresponding to the operated control symbol; and carrying out corresponding control movement on the first projection device, the second projection device, the third projection device or the projector according to the second detection signal. The invention also provides a front projection control system; and by utilizing the front projection control system and method thereof, the projection of the target object can be flexibly controlled.
Description
Technical field
The present invention relates to a kind of front projection control system and method.
Background technology
The interior spaces such as classroom, meeting-place, lecture hall, hall are the important places that people carry out collective activity, increase along with the interior space, projection arrangement becomes necessary tool gradually, think that student, participant, spectators etc. provide another piece " blackboard ", have remedied the defective that large space brings in a way.At present, the above-mentioned interior space mainly uses front projection apparatus to carry out projection, that is, from the place ahead on perspective planes such as curtain with image projection on this perspective plane, traditional front projection apparatus can't free operant, for example, its projected area is pre-set, can not change with temporary needs, can not change the zoom degree of projection as required at any time, therefore, traditional front projection apparatus underaction has often limited lecturer or presider's performance.
Summary of the invention
In view of above content, be necessary the front projection control system and the method that provide a kind of flexibility high.
A kind of front projection control system comprises:
One communication unit, the image that is used for a target object that one first camera is taken sends a projector to and carries out projection to form a view field;
One first detecting unit, whether the described view field of image detecting that is used for the view field of taking according to second camera is operated by a certain gestures, when described view field during by described certain gestures operation, produces one first detection signal;
One symbol is transferred the unit, is used for transferring some symbols according to the described first detection signal correspondence and carries out projection to have the control panel of some control characters in described view field formation one for described projector;
One second detecting unit, the image that is used for the described control panel taken according to the 3rd camera is with the operation of detecting to described some control characters, when control character was operated, the corresponding operated control character of described second detecting unit produced one second detection signal; And
One control unit is used for according to described second detection signal described first, second, third camera or projector being made the action of a correspondence.
A kind of front projection control method may further comprise the steps:
The image transmitting step: the image of the target object that first camera is taken sends a projector to and carries out projection to form a view field;
The first detecting step: image detecting one certain gestures of the described view field of taking according to second camera when described view field is operated by described certain gestures, produces one first detection signal to the operation of described view field;
Control panel is opened step: transfer some symbols according to described first detection signal and carry out projection has some control characters with formation one in described view field control panel for described projector;
The second detecting step: the image of the described control panel of taking according to the 3rd camera is with the operation of detecting to described some control characters, and when control character was operated, corresponding operated control character produced one second detection signal; And
Controlled step: the control action of described camera or projector being made a correspondence according to described second detection signal.
Described front projection control system and the method image by the target object that first camera is captured carries out projection can realize Real Time Observation to target object, point to the panel controlled function that described view field was opened or closed to the certain gestures of described view field according to the image detecting of the captured view field of second camera, and according to the type of operated control character in the image detecting control panel of the captured control panel of the 3rd camera, so that described camera and projector are made corresponding control action, the operator is the openable panel controlled function as required, also can control the state of described view field by control panel neatly, realize the intelligence of the projection of described target object is controlled.
Description of drawings
Fig. 1 is front projection control system of the present invention is carried out projection to a target object a schematic diagram.
Fig. 2 is the module map of the control system better embodiment among Fig. 1.
Fig. 3 is the schematic diagram of the view field among Fig. 1 being operated by a certain gestures.
Fig. 4 is the schematic diagram that forms a control panel in the view field in Fig. 1.
Fig. 5 is the schematic diagram that the control panel among Fig. 4 is operated.
Fig. 6 is the flow chart of front projection control method better embodiment of the present invention.
The main element symbol description
Front projection control system 1
First detecting unit 20
Symbol is transferred unit 40
Second detecting unit 50
Classroom 300
View field 330
Rota 370
Embodiment
Below in conjunction with accompanying drawing and better embodiment the present invention is described in further detail:
Please refer to Fig. 1, the better embodiment of front projection control system 1 of the present invention comprises a camera 80, a projector 90 and a control system 100.
Described camera 80 has a plurality of camera lenses, and first camera lens of described camera 80 is used to take a target object.Described projector 90 receives the image of described target object and the image of the target object that receives is incident upon a view field by described control system 100.Second camera lens of described camera 80 is used to take described view field and sends the image of the view field that obtains to described control system 100.The image of 100 pairs of view fields of described control system is detected, certain gestures with the described view field of detecting operation, when detecting this certain gestures, described control system 100 is promptly controlled described projector 90 and is throwed some control characters to form a control panel in described view field.The three-lens of described camera 80 is used to take the image of described control panel with controlled panel, and described control system 100 also changes the operating state of corresponding described projector 90 of control or camera 80 according to the image at described control panel place.Also can comprise three cameras 80 in other execution modes, wherein first camera is used for the photographic subjects object, and second camera is used to take described view field, and the 3rd camera is used to take described control panel.
In the present embodiment, be applied to be illustrated in the classroom 300 with above-mentioned front projection control system 1, have a board 310 in the described classroom 300, described board 310 is as target object.When described camera 80 started, its first camera lens just began to obtain continuously the image of described board 310.Described projector 90 receives the image of described board 310, and with the image projecting of described board 310 on a plane in described classroom 300, on the wall 320 as board 310 tops, to form a view field 330.
Please continue with reference to figure 2, described control system 100 comprises that a communication unit 10, one first detecting unit 20, a memory cell 30, a symbol transfer unit 40, one second detecting unit 50 and a control unit 60.
Described communication unit 10 is used for the image of the target object that described camera 80 is captured, and the image of promptly described board 310 sends described projector 90 to and carries out projection, to form described view field 330.
Please continue with reference to figure 3, can start the panel controlled function at an ad-hoc location of described view field 330 by a certain gestures, in the present embodiment, described view field 330 has four ad-hoc locations, be four corners of described view field 330, as shown in Figure 3, be positioned at the left frame place of described view field 330 when operator's thumb, forefinger is positioned at the lower frame place of described view field 330, promptly forms the certain gestures of one " eight " font in described view field 330 lower left corners.Second camera lens of described camera 80 is used to take the image of described view field 330, and send the image of the view field 330 of taking to described first detecting unit 20 by described communication unit 10, whether described first detecting unit 20 is used for according to the described view field of the image detecting of described view field 330 330 operated by described certain gestures, in the present embodiment, the gesture that detects " eight " font when described first detecting unit 20 refers in described view field 330 arbitrary corners (in the present embodiment, the lower left corner with view field 330 is example) when locating, judge that promptly described view field 330 operated by this certain gestures, at this moment, described first detecting unit, 20 corresponding one first detection signals that send are transferred unit 40 to start the panel controlled function to described symbol.If the gesture of described view field 330 specific location is not this certain gestures, perhaps this certain gestures is not meant 330 specific location in described view field, then described first detecting unit 20 does not produce described first detection signal, and described panel controlled function is not activated.
Four corners of corresponding described view field 330 store four glossary of symbols in the described symbol memory cell 30, and each glossary of symbols comprises some symbols, such as
Deng, wherein, each symbol has a specific meaning, and the same meaning that the meaning of each symbol can be general with it also can define voluntarily according to designer's requirement.
Please continue with reference to figure 4, when receiving described first detection signal, described symbol is transferred unit 40 and is promptly sent described some symbols to described projector 90 from the glossary of symbols in the lower left corner of the described view field 330 of correspondence, 90 of described projectors also project described view field 330 with the symbol that receives with the image of described target object, and the image of described symbol is positioned at the lower left corner of described view field 330.In like manner, if this certain gestures refers to another specific location in described view field 330, locate as the upper right corner, described symbol is transferred 40 of unit and is sent the symbol in another glossary of symbols at the place, the upper right corner of the described view field 330 of correspondence to projector 90,90 upper right corner that the symbol that receives projected described view field 330 of described projector.Wherein, described symbol forms some control characters in the projection of described view field, and described some control characters are formed a control panel 350, as shown in Figure 4, comprise in the described control panel 350 control character " ▲ ",
And
Each control character is represented a control action, for example,
The projection of (Zoom in) described target object is amplified in representative.
In the present embodiment, described first detecting unit 20 also sends to described control unit 60 with described first detection signal, when receiving described first detection signal, described control unit 60 controls the border color that described projector 90 changes described view field 330, to remind the operator that panel controlled function this moment is activated.
Please continue with reference to figure 5, the image of the described control panel 350 that the three-lens that described second detecting unit 50 receives described camera 80 by described communication unit 10 is captured, and judge according to the image that receives whether the control character in the described control panel 350 is operated.Wherein, described second detecting unit 50 can judge whether this symbol is operated by judging whether a certain symbol is blocked, and for example works as the operator and shelters from described control character with finger or other objects
The time, the image of the control panel 350 that described camera 80 is taken is at described control character
Variation has just taken place in the image feature value at place.Described second detecting unit 50 is detected these variations and is translated into the second corresponding detection signal and sends described control unit 60 to.In the present embodiment, image when prestoring described control panel 350 in described second detecting unit 50 and not being operated, described second detecting unit 40 is compared the image of the control panel of reception and the image feature of the image that this prestores, and is which control character is operated with the position judgment that changes according to the generation image feature.
Described control unit 60 is made corresponding control action according to second detection signal that receives to described camera 80 or described projector 90.For example, when the pairing operated control character of second detection signal be
The time, the further focal length of its first camera lens of the described camera 80 of described control unit 50 controls obtaining the magnified image of target object, thereby makes the 90 corresponding projections of described projector go out amplified images.In other embodiments, work as control character
Or
When being operated, described control unit 60 can directly be controlled described projector 90 and the image of the target object that receives is carried out convergent-divergent handle, thereby projection goes out to dwindle or amplified images, and need not adjust first camera lens of described camera 80.
In other embodiments, also can only store a glossary of symbols in the described memory cell 30, because described first detection signal is corresponding with the ad-hoc location at described certain gestures place, therefore described control unit 60 can be directly be controlled described projector 90 according to described first detection signal symbol of reception is incident upon and the corresponding position of this ad-hoc location, as, when described particular procedure referred at place, described view field 330 lower right corner, the described projector 90 of described control unit 60 controls was projected in the symbol that receives at the place, the lower right corner of described view field 330.
In the present embodiment, the described camera 80 of control character " ▲ " representative control its first camera lens that moves up, control character
The described camera 80 of representative control moves down its first camera lens, control character
The described camera 80 of representative control its first camera lens that moves right, control character
The described camera 80 of representative control is moved to the left its first camera lens, control character
The projection that (Zoom in) described target object is amplified in representative control, control character
The projection of (Zoom out) described target object, control character are dwindled in representative
Expression switches to other video cameras or other multimedia equipments with described projector 90, as computer, DVD etc., so that described projector 90 carries out projection to the image on other video cameras or the multimedia equipment.
When needs are closed described panel controlled function, the operator can operate described view field 330 in the lower right-hand corner of described view field 330 again by described certain gestures, when the lower right-hand corner that detects described view field 330 when described first detecting unit 20 described certain gestures occurs once more, promptly send described first detection signal once more and transfer unit 40 to described symbol, described symbol is transferred unit 40 and is promptly stopped to give this projector 90 from the concentrated symbol of transferring of corresponding symbol, and the control panel 350 in described view field 350 lower left corners promptly is hidden.And described first detection signal also is sent to described control unit 60, described control unit 60 is controlled described projector 90 and is recovered the border color of described view field 330 when receiving first detection signal once more, to remind the operator that panel controlled function this moment is closed.
When operator's certain gestures moves to the place, the lower right corner of described view field 330, can be behind the control panel of hiding the lower left corner, directly start the control panel in the lower right corner, also can open the control panel in a plurality of corners simultaneously, thereby arbitrarily one of them control panel be operated according to operator's change in location.
Please refer to Fig. 6, the better embodiment of front projection control method of the present invention is applied to described front projection control system 1, and described front projection control method may further comprise the steps:
Step S1: image transmitting step: the image of the target object that described communication unit 10 is captured with first camera lens of described camera 80, send described projector 90 to and carry out projection, 90 of described projectors after receiving the image of target object with on image projecting to a plane of target object to form described view field 330.In the present embodiment, described target object is a board 310.
Step S2: the first detecting step: the image of the described view field 330 of second lens shooting of the described camera 80 of described first detecting unit, 20 receptions, and it is whether operated by described certain gestures according to the described view field of the image detecting that receives 330, if described certain gestures appears in arbitrary ad-hoc location that described first detecting unit 20 detects described view field 330, this ad-hoc location that described view field 330 is described is operated, execution in step S3 then, if described view field 330 is not operated by described certain gestures, then return step S1.In the present embodiment, described view field 330 has four ad-hoc locations, be four corners of described view field 330, when the gesture of described " eight " font is in described view field 330 arbitrary corners, judge that promptly described view field 330 operated by this certain gestures.
Step S3: first detection signal produces step: the ad-hoc location at described first detecting unit 20 corresponding described certain gestures places sends one first detection signal and transfers unit 40 and described control unit 60 to described symbol.
Step S4: control panel setting up procedure: described symbol transfer unit 40 according to described first detection signal in described view field 330 with the corresponding position of described ad-hoc location start-up control panel 350, promptly transfer described some symbols and give described projector 90, described projector 90 is projected in the symbol that receives in the described view field 330 and the pairing position of described ad-hoc location, to form described some control characters, described some control characters are promptly formed described control panel 350.For example, when described certain gestures be that described control panel 350 just appears at the lower left corner of described view field 330 when described view field 330 lower right-hand corner are operated described view field 330.
Step S5: remind step: described control unit 60 is controlled the frame of the described view field 330 of 90 changes of described projector according to described first detection signal color starts to remind operator's panel controlled function, simultaneously execution in step S6 and S9 then, described step S5 also can omit.
Whether step S6: the second detecting step: described second detecting unit 50 receives the image of the control panel 350 that the three-lens of described camera 80 takes, and be operated according to the described some control characters of image detecting that receive.When having detected control character when being operated, execution in step S7 then; Otherwise, return step S1.
Step S7: second detection signal produces step: described second detecting unit, 50 corresponding operated control characters produce one second detection signal, and send described second detection signal to control unit 60.
Step S8: controlled step: described control unit 60 is made corresponding control action according to second detection signal that receives to described camera device 80 or described projector 90.
Step S9: the 3rd detecting step: whether described first detecting unit 20 is operated by described certain gestures at this ad-hoc location once more according to the described view field of the image detecting that receives 330, if described view field 330 is operated once more at this ad-hoc location, execution in step S10 then, otherwise, return step S1.
Step S10: first detection signal produces step once more: described first detecting unit 20 sends described first detection signal once more and transfers unit 40 to described symbol.
Step S11: control panel is closed step: described symbol is transferred unit 40 and is stopped to transfer with the pairing symbol of this ad-hoc location and give described projector 90, and the control panel 350 with the corresponding position of described ad-hoc location in the described view field 330 just is hidden.
As previously mentioned, also can only store a glossary of symbols in the described memory cell 30, described control unit 60 was controlled described projector 90 according to described first detection signal symbol that receives was incident upon and the corresponding position of this ad-hoc location this moment, as, when described certain gestures referred at place, described view field 330 lower right corner, the described projector 90 of described control unit 60 controls was projected in the symbol that receives in the lower right corner of described view field 330.
In the present embodiment, described certain gestures also can be other gestures, other positions that also can set described view field are ad-hoc location, perhaps do not set described ad-hoc location, when described certain gestures refers to optional position in view field 330, described first detecting unit 20 judges that promptly this view field 330 is operated, thereby starts the panel controlled function of described view field 330.The position of described control panel 350 can change along with the position of described certain gestures, can be not yet with the position change of described certain gestures, and be in a fixed position all the time.
Front projection control system of the present invention and the method image by the target object that camera 80 is captured carries out projection can realize Real Time Observation to target object, point to the panel controlled function that described view field was opened or closed to the certain gestures of described view field according to the image detecting of the captured view field of described camera 80, and according to the type of operated control character in the image detecting control panel of the captured control panel of camera 80, so that described camera 80 and projector 90 are made corresponding control action, the operator can open or close the panel controlled function as required, also can control the state of described view field by control panel neatly, realize the intelligence of the projection of described target object is controlled.
Claims (15)
1. front projection control system comprises:
One communication unit, the image that is used for a target object that one first camera is taken sends a projector to and carries out projection to form a view field;
One first detecting unit, whether the described view field of image detecting that is used for the view field of taking according to second camera is operated by a certain gestures, when described view field during by described certain gestures operation, produces one first detection signal;
One symbol is transferred the unit, is used for transferring some symbols according to the described first detection signal correspondence and carries out projection to have the control panel of some control characters in described view field formation one for described projector;
One second detecting unit, the image that is used for the described control panel taken according to the 3rd camera is with the operation of detecting to described some control characters, when control character was operated, the corresponding operated control character of described second detecting unit produced one second detection signal; And
One control unit is used for according to described second detection signal described first, second, third camera or projector being made the action of a correspondence.
2. front projection control system as claimed in claim 1, it is characterized in that: whether described first detecting unit described certain gestures occurs by some specific location of detecting described view field is judged whether described view field is operated, and described first detection signal is corresponding to the ad-hoc location that described certain gestures occurs.
3. front projection control system as claimed in claim 2, it is characterized in that: described front projection control system also comprises a memory cell, some ad-hoc locations of corresponding described view field store some glossary of symbols in the described memory cell, each glossary of symbols comprises some symbols, described symbol is transferred the symbol of transferring in the corresponding glossary of symbols according to described first detection signal unit and is given described projector, so that described projector is projected in the symbol that receives in the described view field and the corresponding position of described ad-hoc location.
4. front projection control system as claimed in claim 2, it is characterized in that: described control unit also is used to receive described first detection signal, and controls described projector according to described first detection signal symbol that receives is projected in the described view field and the corresponding position of the ad-hoc location that certain gestures occurs.
5. front projection control system as claimed in claim 1, it is characterized in that: whether described first detecting unit also is used to detect described view field operated by described certain gestures once more, when described view field once more by described certain gestures when operated, described first detecting unit sends described first detection signal once more and transfers the unit to described symbol, described symbol is transferred the unit and is promptly stopped to transfer described some symbols to described projector, and described control panel is hidden in described view field.
6. front projection control system as claimed in claim 1 is characterized in that: described control unit also is used to receive described first detection signal, and controls the color that described projector changes the frame of described view field according to described first detection signal.
7. front projection control system as claimed in claim 1, it is characterized in that: whether described second detecting unit compares by the image of the control panel that will obtain and the image of the not operated control panel of storage in advance, have control character to be operated with detecting.
8. front projection control method may further comprise the steps:
The image transmitting step: the image of the target object that first camera is taken sends a projector to and carries out projection to form a view field;
The first detecting step: image detecting one certain gestures of the described view field of taking according to second camera when described view field is operated by described certain gestures, produces one first detection signal to the operation of described view field;
Control panel is opened step: transfer some symbols according to described first detection signal and carry out projection has some control characters with formation one in described view field control panel for described projector;
The second detecting step: the image of the described control panel of taking according to the 3rd camera is with the operation of detecting to described some control characters, and when control character was operated, corresponding operated control character produced one second detection signal; And
Controlled step: the control action of described camera or projector being made a correspondence according to described second detection signal.
9. front projection control method as claimed in claim 8, it is characterized in that: whether the described first detecting step described certain gestures occurs by some specific location of detecting described view field is judged whether described view field is operated, and described first detection signal is corresponding to the ad-hoc location that described certain gestures occurs.
10. front projection control method as claimed in claim 9, it is characterized in that: described control panel is opened step and transfer described some symbols from a memory cell, some ad-hoc locations of corresponding described view field store some glossary of symbols in the described memory cell, each glossary of symbols comprises some symbols, described symbol is transferred the symbol of transferring in the corresponding glossary of symbols according to described first detection signal unit and is given described projector, so that described projector is projected in the symbol that receives in the described view field and the corresponding position of described ad-hoc location.
11. front projection control method as claimed in claim 9 is characterized in that: it is to control described projector according to described first detection signal symbol that receives is projected in the described view field and the corresponding position of the ad-hoc location that certain gestures occurs that described control panel is opened step.
12. front projection control method as claimed in claim 8, it is characterized in that: described control panel is opened step, also comprise one the 3rd detecting step after the second detecting step or the controlled step, described the 3rd detecting step judges according to the image of the view field that described second camera is taken whether described view field is operated by described certain gestures once more, when described view field once more by described certain gestures when operated, send described first detection signal once more and transfer the unit to described symbol, described symbol is transferred the unit and is promptly stopped to transfer described some symbols to described projector, described control panel is hidden in described view field, if described view field is not operated once more by described certain gestures, then return described control panel and open step.
13. front projection control method as claimed in claim 8 is characterized in that: described front projection control method comprises that also one reminds step, and described prompting step is controlled the color that described projector changes the frame of described view field according to described first detection signal.
14. front projection control method as claimed in claim 8 is characterized in that:, then return described image transmitting step if judge that described view field is not operated by described certain gestures in the described first detecting step.
15. front projection control method as claimed in claim 8 is characterized in that:, then return described control panel and open step if judge when described control character all is not operated in the described second detecting step.
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| CN105824399A (en) * | 2015-01-06 | 2016-08-03 | 中兴通讯股份有限公司 | Control method, system and apparatus for projection equipment |
| CN107817924A (en) * | 2016-09-12 | 2018-03-20 | 精工爱普生株式会社 | The control method of display device and display device |
| CN112286400A (en) * | 2020-09-24 | 2021-01-29 | 杭州易现先进科技有限公司 | Projection interaction method and device, electronic equipment and computer storage medium |
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Application publication date: 20111019 |