CN101424984A - Three-dimensional pointing method and system - Google Patents
Three-dimensional pointing method and system Download PDFInfo
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- CN101424984A CN101424984A CNA2008101772526A CN200810177252A CN101424984A CN 101424984 A CN101424984 A CN 101424984A CN A2008101772526 A CNA2008101772526 A CN A2008101772526A CN 200810177252 A CN200810177252 A CN 200810177252A CN 101424984 A CN101424984 A CN 101424984A
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Abstract
The invention relates to a three-dimensional pointing method and a system, which are used for determining the display position of each object of a virtual object group in a display picture. The virtual object group comprises a main virtual object and a first auxiliary virtual object. An absolute coordinates signal of an absolute coordinates position of a main entity object corresponding to the outside of the display picture and a relative coordinates signal of a relative coordinates position of a first auxiliary entity object corresponding to the outside of the display picture are obtained, and the display position of the virtual object group in a display is determined according to the absolute coordinates signal and the relative coordinates signal, wherein the display position of the main virtual object changes along with the relative coordinates signal, and the display position of the first auxiliary virtual object is determined according to the display position represented by the absolute coordinates signal to be used as a reference point and the first relative coordinates position represented by the relative coordinates signal.
Description
Technical field
The invention relates to a kind of three-dimensional pointing method and system, and particularly relevant for a kind of three-dimensional pointing system and method in conjunction with absolute coordinates and relative coordinate.
Background technology
Day by day popularizing of action sensor is applied on the portable apparatus, forms various new application.Three-dimensional pointing device for example, appearance as 3D mouse device, three-dimensional telepilot (3D remote controller), allow the user can be when operating space simulated program or three-dimensional computer game, can be with near intuitive operation, and bring the enjoyment in simulates real truth border.
Generally speaking, known three-dimensional pointing device, 3D mouse device for example utilizes action sensor such as acceleration transducer or adds gyro sensor sensing the change of three-dimensional location data, thereby learns the position data of user by the desire input of indicator device institute.With computer game is example, Wii game host as Nintendo, it is with the indicator device of three-dimensional remote control, be called " Wii-remote ", the user is when playing each computer game, by holding or brandishing " Wii-remote ", video game program simulates the action of various situations on screen, for example plays tennis or punch action.
, the above-mentioned known getable three-dimensional location data of three-dimensional pointing device just belongs to the relative positioning technology, and relative positioning is meant that the position of being calculated at present is relevant with position before.The relative positioning technology is understood the accumulation because of the offset error amount usually, and causes the big more phenomenon of offset error of a specified duration more service time.So for example in the computer game of tennis, games only will consider the action that the user holds racket by the three-dimensional pointing device simulation and change the position of racket on the screen and the action that ball is waved in calculating.That is to say that in recreation, the position of user in the screen-picture of emulation is not to conform to the residing true situation of user, but according to the control of games; For example, chase after ball, fly to flutter and do to be finished by Automatic Program, the user is chased after the ball action and can not be reflected among the program what do on the residing position.
Hence one can see that, and when operating space simulated program or three-dimensional computer game, known three-dimensional pointing mode can only provide the relative positioning technology, concerning the user, suitable limitation is arranged, and fails simulates real truth border and user's operation.
Summary of the invention
The present invention is relevant for a kind of three-dimensional pointing system and method.According to embodiments of the invention, corresponding relation between the outer entity object of the virtual objects group that display frame produces and display frame can the reaction entity object such as the user variation of absolute position and hand allow experience in the authentic context of user in display frame have more the dynamic visual impact of the sense of reality with respect to the variation of body action in fact.
According to a first aspect of the invention, a kind of three-dimensional pointing method is proposed, the display position of each object in the display frame of display in order to decision virtual objects group, wherein, virtual objects group comprises the main virtual objects and the first secondary virtual objects, the method comprises: obtain the absolute coordinates signal, the absolute coordinates signal corresponds to the absolute coordinates position of the principal object beyond the display frame.Obtain the relative coordinate signal, the relative coordinate signal corresponds to the first relative coordinate position of the first secondary entity object beyond the display frame.According to absolute coordinates signal and relative coordinate signal, the display position of decision virtual objects group in the display frame of display.The display position of main virtual objects changes along with the absolute coordinates signal, and the display position of the first secondary virtual objects with the display position of absolute coordinates signal representative as with reference to point and according to the first relative coordinate position of relative coordinate signal representative with decision.
According to a second aspect of the invention, a kind of three-dimensional pointing system is proposed, in order to point to the display position of each object in the display frame of display of virtual objects group, wherein, virtual objects group comprises the main virtual objects and the first secondary virtual objects, and the three-dimensional pointing system comprises: definitely point to subsystem, relative point subsystem and processing module.The absolute subsystem that points to is in order to provide the absolute coordinates signal, and the absolute coordinates signal corresponds to the absolute coordinates position of the principal object beyond the display frame.The relative point subsystem is in order to provide the relative coordinate signal, and the relative coordinate signal corresponds to the first relative coordinate position of the first secondary entity object beyond the display frame.Processing module is accepted absolute coordinates signal and relative coordinate signal, and determines the display position of virtual objects group in the display frame of display according to this.Wherein, the display position of main virtual objects changes along with the absolute coordinates signal, and the display position of the first secondary virtual objects with the display position of absolute coordinates signal representative as with reference to point and according to the first relative coordinate position of relative coordinate signal representative with decision.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Figure 1A to Fig. 1 C is the synoptic diagram of a kind of three-dimensional pointing method of the embodiment of the invention.
Fig. 2 is the process flow diagram according to an embodiment of a kind of three-dimensional pointing method of the present invention.
Fig. 3 is the calcspar according to an embodiment of a kind of three-dimensional pointing of the present invention system.
Fig. 4 is the calcspar according to an embodiment of the three-dimensional pointing system of Fig. 3.
The position view that Fig. 5 is the principal object among an absolute coordinate.
Fig. 6 is the calcspar of an embodiment of three dimensional input device among Fig. 4.
Embodiment
Embodiments of the invention provide a kind of three-dimensional pointing system and method.According to embodiments of the invention, for example when operating space simulated program or video game program, shown in Figure 1A, the part of the absolute coordinates of user 101 present positions and other activity on one's body such as the relative coordinate of hand 103 see through three-dimensional pointing system 10 detecting, and determine each object such as the main virtual objects 131 and the display position of secondary virtual objects 133 (as tennis racket of holding) in the display frame 120 of display of virtual objects group 130 according to this; The meaning of virtual objects is a Drawing Object herein, as straight line, curve, two dimensional image or 3-D view, and concrete example such as animals and plants, machine, utensil or weapon or and part.User 101 and hand 103 are regarded the principal object and the first secondary entity object of entity object group 100 respectively as.
The deciding means of the display position of each object (as the object 131 and 133 of Figure 1A) in display frame of relevant virtual objects group please refer to the process flow diagram of a kind of three-dimensional pointing method according to one embodiment of the invention shown in Figure 2.Shown in step S210, obtain the absolute coordinates signal, the absolute coordinates signal corresponds to the absolute coordinates position of the principal object beyond the display frame.Step S220 obtains the first relative coordinate signal, and the first relative coordinate signal corresponds to the first relative coordinate position of the first secondary entity object beyond the display frame.Shown in step S230, according to the absolute coordinates signal and the first relative coordinate signal, the display position of decision virtual objects group in the display frame of display; Wherein, the display position of main virtual objects changes along with the absolute coordinates signal, and the display position of the first secondary virtual objects with the display position of absolute coordinates signal representative as with reference to point and according to the first relative coordinate position of relative coordinate signal representative with decision.In addition, above-mentioned steps S210 and S220 can carry out synchronously or carry out with different sequencings.
So, the three-dimensional pointing system 10 of Figure 1A can determine the position of object 131 and 133 in display frame 120 of Figure 1A according to above-mentioned three-dimensional pointing method shown in Figure 2.Please refer to Figure 1B and Fig. 1 C, it shows the synoptic diagram of using three-dimensional pointing method shown in Figure 2, and wherein, entity object group and virtual objects group represent with other form again.Shown in Figure 1B, when entity object group 100 moves toward its left side from the right of empty arrow 150, the position of the first secondary entity object 103 changes with principal object 101, the display position of main virtual objects 131 changes along with the absolute coordinates signal, promptly along with principal object 101 outside display frame 120 absolute coordinates and change, for example, to the direction of empty arrow 151 move or other corresponding direction as moving in the other direction.In Figure 1B, because the first secondary entity object 103 does not change with respect to the relative position of principal object 101, so the display position of the first secondary virtual objects 133 does not change with respect to the reference point of main virtual objects 131, wherein reference point can be defined as arbitrarily beyond the main virtual objects 131 or with interior relative position constant a bit, for example be an end points R of main virtual objects 131.
And for example shown in Fig. 1 C, there is the first secondary entity object 103 to move to the other end of empty arrow from tail end along the path shown in the empty arrow 153 in the entity object group 100, the relative position of the principal object 101 and the first secondary entity object 103 changes thereupon, wherein, the display position of the first secondary virtual objects 133 is put the first relative coordinate position of R and the foundation first relative coordinate signal representative with decision according to the display position of absolute coordinates signal representative as reference.In Fig. 1 C, because the absolute position of principal object 101 does not change, so main virtual objects 131 does not move, its display position and reference point R thereof do not change.
As for the display position of the first secondary virtual objects 133 and move relatively, can different implementations be arranged based on the embodiment of said method to mode.
For example the display position P1 of the first secondary virtual objects 133 adds based on the coordinate function f of the first relative coordinate position D1 with decision, as P1=R+f (D1) for reference point R.P1=R+D1*k for example, wherein k is a constant.This kind situation is applicable to for example example shown in Figure 1A.The first secondary virtual objects 133 is the tennis racket of holding, when user 101 hand 103 move as Fig. 1 C in the path of empty arrow 153 when swinging the bat, but the change P1 of the display position of the first secondary virtual objects 133 reflects user 101 action with essence, shown in empty arrow 154.In addition, if user 101 is according to swinging the bat shown in the empty arrow 153 of Fig. 1 C and going to the left side from the right simultaneously shown in the empty arrow 150 of Figure 1B, then according to the embodiment of said method, two kinds of situations of Figure 1B and Fig. 1 C are synthesized, and the display position of the main virtual objects 131 and the first secondary virtual objects 133 can essence produces sportsman 131 in the display frame 120 in the action of moving and brandishing tennis racket 133 from right to left.
In another example, the first secondary virtual objects 133 display position P1 vectorial V size-controlled for reference point R adds be with decision, wherein the direction of vectorial V based on the coordinate function f of the first relative coordinate position D1 with decision.As, P1=R+V, the direction of vectorial V is determined by f (D1).If with above-mentioned Figure 1A is example, be predetermined value if set the distance of sportsman 131 and tennis racket 133, then the big I of vectorial V is set at predetermined value, and the display position of tennis racket 133 can be tried to achieve based on the mode of P1=R+V.In other example, represent when user 101 hand 103 is done a certain action or reached a certain position and hold tennis racket 133 and make predetermined actions, for example hand 103 is lifted height and is promptly swung the bat or kill action.For this reason, can implement function f 1 (D1) and represent the kill path of action of the path of racked swing or function f 2 (D1) representative, according to P1=R+V in the hope of the first secondary virtual objects 133 display position P1.In addition, if user 101 goes to the left side from the right again simultaneously shown in the empty arrow 150 of Figure 1B, then according to the embodiment of said method, two kinds of situations of Figure 1B and Fig. 1 C are synthesized, and the display position of the main virtual objects 131 and the first secondary virtual objects 133 can essence produces sportsman 131 in the display frame 120 in the action of moving and brandishing tennis racket 133 from right to left.
In addition, the above-mentioned first secondary virtual objects 133 for example is again boxer's a fist, and so, but virtual objects group 130 demonstrates the action that the boxer shakes one's fists with essence when beating.Moreover except the first secondary entity object 103 and the first secondary virtual objects 133 had corresponding relation, principal group 100 more can comprise other secondary entity object, and produced corresponding relation with another secondary virtual objects in the display frame 120.Be example with the boxing match for example, user's body can be considered as the principal object, and user's head, right-hand man and both legs can respectively be customized for a secondary entity object, and is relative, can implement corresponding secondary virtual objects in display frame.In other embodiments, principal object and secondary entity object are not limited to again on one's body the user, can and need and each is self-defined according to each occasion.For example principal object or secondary entity object are for holding in user's hand or the device of frenulum, so that absolute position signal or relative position signal to be provided; For example for holding in user's hand or the object of frenulum, can obtain absolute position signal or relative position signal again by this object of sensing.
Three-dimensional pointing method by the invention described above embodiment, corresponding relation between the virtual objects group that display frame produces and the display frame entity object outward more can the reaction entity object such as user's variation of position and action in fact, allows the user experience to have more the dynamic visual impact of the sense of reality.
The embodiment of said method can be applicable to provide in the system of at least one absolute coordinates signal and at least one relative coordinate signal and carries out.The embodiment of said method can be used as computer program or program module or instruction again, moves in the computer product of video game program or simulated program.
Please refer to Fig. 3, Figure 3 shows that the calcspar of an embodiment of three-dimensional pointing system.Three-dimensional pointing system 300 comprises: definitely point to subsystem 310, relative point subsystem 320 and processing module 350.The absolute subsystem 310 that points to is in order to provide the absolute coordinates signal, and the absolute coordinates signal corresponds to the absolute coordinates of the principal object beyond the display frame and puts.Relative point subsystem 320 is in order to provide the relative coordinate signal, and the relative coordinate signal corresponds to the first relative coordinate position of the first secondary entity object beyond the display frame.Processing module 350 is accepted absolute coordinates signal and relative coordinate signal, and determines the display position of virtual objects group in the display frame of display according to this.The display position of the main virtual objects of processing module 350 decisions changes along with the absolute coordinates signal, and determines the display position of the first secondary virtual objects to put as reference and get according to the first relative coordinate position of relative coordinate signal representative with the display position of absolute coordinates signal representative.Processing module 350 for example is to implement with microprocessor, digital signal processor or logical circuit.In addition, processing module 350 for example is to implement with desktop PC, notebook computer or game host; So, computing machine has display driver chip and can transmit signal and give display to show that virtual objects group is in display frame 120 according to each display position of the virtual objects group of above-mentioned gained.In addition, definitely pointing to subsystem 310 or relative point subsystem 320 can be connected with processing module 350 to determine the display position of virtual objects with wired or wireless mode.
Please refer to Fig. 4, it is the calcspar according to an embodiment of the three-dimensional pointing system of Fig. 3.An absolute embodiment who points to subsystem 310 comprises: the reflective object 413 and emission and the receiver 411 that lie in principal object 101.Emission and receiver 411 be in order to sending the detection electric wave, and accept the reflection wave from reflective object 413, and to produce detection signal, detection signal is in order to produce the absolute coordinates signal.In this embodiment, emission and receiver 411 are arranged on the display frame 120 of display, in order to send detection electric wave, for example infrared ray.Please refer to Fig. 5, it is shown in emission and receiver 411 can accept to detect the scope of electric wave before or the position in its scope that receives reflection wave forms absolute coordinate system, make principal object 101 and correspond in the display frame 120, wherein the resolution of display frame for example is 640x480, and the user be principal object 101 by the position of reflective object 413 gained be the represented R of stain (x, y); Thus, display frame 120 demonstrates main virtual objects and secondary virtual objects according to this.In addition, for example with the calculation method of two-dimentional corresponding three-dimensional.As the border, field considering to photograph width and height and get a wherein central point, can be in the hope of corresponding D coordinates value.Do other processing again according to reflection wave, for example with its intensity size estimate principal object 101 and emission and receiver 411 apart from d, also can further determine three-dimensional position.In an example, the video camera that emission and receiver 411 comprise ultrared transmitter and CMOS is to accept reflection wave, and for example the mode that is centered around the CMOS video camera with a plurality of infrared transmitter is implemented.In other example, emission and receiver 411 can change at least one transmitter and at least one receiver of separation into, respectively are placed in different positions, for example above or below the display, or are the top or wall or the corner in room.
In addition, another embodiment that definitely points to subsystem 310 comprises video camera (not illustrating) and human body recognition module (not illustrating).Video camera is in order to take display image in addition to produce signal of video signal.The human body recognition module is according to signal of video signal, and at characteristics of human body such as people's face, human eye and one of humanoid or its combination, to produce detection signal, detection signal is in order to produce the absolute coordinates signal of principal object 101.In this example, video camera for example is CMOS video camera or infrared camera, can establish the position that is put in as emission and receiver 411 among Fig. 4.In addition, because this example adopts the human body recognition module to analyze the position of characteristics of human body in the captured signal of video signal to obtain the absolute coordinates of principal object 101, so can use reflective object 413.In addition, the human body recognition module can embodiment be hardware circuit or software, if during with software implementation human body recognition module, can be carried out by processing module 350.
Refer again to Fig. 4, an embodiment of relative point subsystem 320 comprises: at least one three dimensional input device 430 and wireless receiver 440.Three dimensional input device 430 lies in the first secondary entity object 103, correspond to the relative coordinate signal of the first secondary entity object 103 in order to generation, as holding three dimensional input device 430 (as be used for simulation plays tennis, baseball or boxing) by the user, or at alternate manner as being worn on the pin or tying up on leg (as be used for simulation is played soccer, wushu).Three dimensional input device 430 more comprises: wireless launcher, and in order to send wireless signal to send out this relative coordinate signal.And wireless receiver 440 receives wireless signal to send processing module 350 processing to.Wireless launcher and wireless receiver can adopt wireless communication technique such as blue bud (Bluetooth) technology or WLAN (as Wi-Fi) technology implementation.
The by way of example of the three dimensional input device 430 of relative point subsystem 320 can be decided with the demand of pointing system, and at least one multivariant sensor that provides for example is provided, as acceleration transducer or gyro sensor to implement three dimensional input device 430.An embodiment as shown in Figure 6, three dimensional input device 600 comprises: acceleration transducer 610, gyro sensor 620 and control module 630.Acceleration transducer 610 is in order to produce the three-dimensional acceleration signal.Gyro sensor 620 is in order to produce the three dimensional angular rate signal.Control module 630 produces three-dimensional acceleration signal and three dimensional angular rate signal in order to foundation, to produce the relative coordinate signal.If relative point subsystem 320 is realized with wireless mode, so that being provided, handles the relative coordinate signal to processing module 350, then three dimensional input device 600 more comprises wireless communication module 640, in order to send wireless signal or with processing module 350 communications to send out this relative coordinate signal.
The embodiment of the invention described above has disclosed a kind of three-dimensional pointing method and system.Corresponding relation between the virtual objects group that display frame produces and the display frame entity object outward more can the reaction entity object such as user's variation of position and action in fact, allow the user experience to have more the dynamic visual impact of the sense of reality, obtain better use experience.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, change of being done and retouching without departing from the spirit and scope of the present invention all belongs to scope of patent protection of the present invention.
Claims (12)
1. three-dimensional pointing method, in order to the display position of each object in the display frame of display of decision virtual objects group, this virtual objects group comprises the main virtual objects and the first secondary virtual objects, it is characterized in that this method comprises:
Obtain the absolute coordinates signal, this absolute coordinates signal corresponds to the absolute coordinates position of the principal object beyond this display frame;
Obtain the relative coordinate signal, this relative coordinate signal corresponds to the first relative coordinate position of the first secondary entity object beyond this display frame;
According to this absolute coordinates signal and this relative coordinate signal, determine this display position of virtual objects group in the display frame of this display;
Wherein, the display position of this main virtual objects changes along with this absolute coordinates signal, and the display position of this first secondary virtual objects with the display position of this absolute coordinates signal representative as with reference to point and according to this first relative coordinate position of this relative coordinate signal representative with decision.
2. three-dimensional pointing method according to claim 1 is characterized in that, the display position of this first secondary virtual objects adds based on the coordinate function of this first relative coordinate position with decision for this reference point; Perhaps the display position of this first secondary virtual objects adds size-controlled vector with decision for this reference point, direction that wherein should vector based on the coordinate function of this first relative coordinate position with decision.
3. three-dimensional pointing method according to claim 1 is characterized in that, this principal object is the user, and this first secondary entity object is the part of this user's health.
4. three-dimensional pointing system, in order to point to the display position of each object in the display frame of display of virtual objects group, this virtual objects group comprises the main virtual objects and the first secondary virtual objects, it is characterized in that this three-dimensional pointing system comprises:
The absolute subsystem that points to, in order to the absolute coordinates signal to be provided, this absolute coordinates signal corresponds to the absolute coordinates position of the principal object beyond this display frame;
The relative point subsystem, in order to the relative coordinate signal to be provided, this relative coordinate signal corresponds to the first relative coordinate position of the first secondary entity object beyond this display frame;
Processing module, this processing module are accepted this absolute coordinates signal and this relative coordinate signal, and determine this display position of virtual objects group in the display frame of this display according to this;
Wherein, the display position of this main virtual objects changes along with this absolute coordinates signal, and the display position of this first secondary virtual objects with the display position of this absolute coordinates signal representative as with reference to point and according to this first relative coordinate position of this relative coordinate signal representative with decision.
5. three-dimensional pointing according to claim 4 system is characterized in that, the display position of this first secondary virtual objects adds that for this reference point coordinate function based on this first relative coordinate position is with decision; Perhaps the display position of this first secondary virtual objects adds size-controlled vector with decision for this reference point, and with decision, size that wherein should vector is decided by this processing module direction that wherein should vector based on the coordinate function of this first relative coordinate position.
6. three-dimensional pointing according to claim 4 system is characterized in that this definitely points to subsystem and comprises:
Transmitter detects electric wave in order to emission;
Reflective object lies in this principal object, this reflective object reflective electric wave; And
Receiver is accepted the reflection wave from this reflective object, to produce detection signal; Wherein, this detection signal is in order to produce this absolute coordinates signal.
7. three-dimensional pointing according to claim 6 system is characterized in that, this absolute sensing in subsystem, this detection electric wave is an infrared ray.
8. three-dimensional pointing according to claim 4 system is characterized in that this definitely points to subsystem and comprises:
Video camera is in order to take this display image in addition to produce signal of video signal;
The human body recognition module is according to this signal of video signal, at the characteristics of human body, to produce detection signal;
Wherein, this detection signal is in order to produce this absolute coordinates signal.
9. three-dimensional pointing according to claim 8 system is characterized in that, this characteristics of human body behave face, human eye and one of humanoid or its combination.
10. three-dimensional pointing according to claim 4 system is characterized in that this relative point subsystem comprises:
Three dimensional input device lies in this first secondary entity object, in order to produce this relative coordinate signal.
11. three-dimensional pointing according to claim 10 system is characterized in that this three dimensional input device comprises:
Acceleration transducer is in order to produce acceleration signal;
Gyro sensor is in order to produce angular velocity signal; And
Control module produces this acceleration signal and this angular velocity signal in order to foundation, to produce this relative coordinate signal.
12. the three-dimensional pointing system according to claim 10 is stated is characterized in that: this three dimensional input device more comprises: wireless launcher, in order to send wireless signal to send out this relative coordinate signal;
This relative point subsystem more comprises: wireless receiver, handle to send this processing module in order to receive this wireless signal.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101751187B (en) * | 2010-01-05 | 2012-01-04 | 友达光电股份有限公司 | Referent position judging method of three-dimensional interactive stereoscopic display |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101751187B (en) * | 2010-01-05 | 2012-01-04 | 友达光电股份有限公司 | Referent position judging method of three-dimensional interactive stereoscopic display |
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