CN102736728A - Control method and system for three-dimensional virtual object and processing device for three-dimensional virtual object - Google Patents
Control method and system for three-dimensional virtual object and processing device for three-dimensional virtual object Download PDFInfo
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- CN102736728A CN102736728A CN2011100922975A CN201110092297A CN102736728A CN 102736728 A CN102736728 A CN 102736728A CN 2011100922975 A CN2011100922975 A CN 2011100922975A CN 201110092297 A CN201110092297 A CN 201110092297A CN 102736728 A CN102736728 A CN 102736728A
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Abstract
The invention discloses a control method and a control system for a three-dimensional virtual object and a processing device for the three-dimensional virtual object. The method comprises the following steps of: displaying a three-dimensional image on a screen, and forming a depth of field between a virtual object in the three-dimensional image and the screen; then acquiring an image in front of the screen, and detecting a gesture in the image; judging whether the gesture is close to the virtual object; and if the gesture is close to the virtual object, performing operation corresponding to the gesture to the virtual object. Therefore, a viewer who views the three-dimensional image can interact with the virtual object through the gesture. The control method and the control system can be widely applied to the fields of medical science, engineering, entertainment, education training and the like, so that the convenience in operation of the device is improved.
Description
Technical field
The present invention relates to a kind of control method, system and device of dummy object, relate in particular to a kind of 3 D stereo (three-dimensional, 3D) control method of dummy object, control system and treating apparatus.
Background technology
Along with being showing improvement or progress day by day of science and technology, the 3D image is continue high definition (high definition, HD) the recent development trend behind the image.Along with 3D shows that related industry emerges apace, following 3D film and 3D display possibly spread in everyone family, even the image of mobile phone or game machine also can appear with the mode of 3D.
The 3D image comprises the image that offers human left eye and eye viewing respectively; This right and left eyes image is on two eyes retinas can have certain parallax (parallax) now; And after being transmitted to cerebral cortex; Promptly can it be fused into the single image with level and depth of field, and then type of making us produces stereoscopic sensation by cortical centre.
Existing 3D imaging technique can make the beholder see the object in the 3D image; Preset depth of field when these objects can produce according to the 3D image is presented on beholder's different distance in front with the form of dummy object, lets the beholder experience position, size and the angle of these objects in original scene.Yet; It all is that relevant devices such as 3D display or 3D film set in advance that above-mentioned image changes; That is to say; The beholder sees that it all is to be presented at beholder fixed position in front by the 3D display that the image of position, size and angle of the dummy object in the 3D stereopsis that is presented at the moment or the like changes; The beholder must use devices such as rocking bar or sensor glove just can operate on it, and can't be directly be presented in face of dummy object carry out interaction, this kind mode of operation is still directly perceived inadequately for the beholder.
Summary of the invention
In view of this, the present invention provides a kind of control method of three-dimensional tridimensional virtual object, by the gesture motion of judging the beholder, and then to the pairing operation of dummy object execution gesture, lets beholder and dummy object carry out interaction in view of the above.
The present invention proposes a kind of control method of three-dimensional tridimensional virtual object, and it is on screen, to show 3 D stereoscopic image, makes to have the depth of field between dummy object and the screen in this 3 D stereoscopic image.Then, obtain the image in screen the place ahead, and detect the gesture in this image.Then, whether judge gesture, and when judging gesture, then dummy object is carried out the pairing operation of gesture near dummy object near dummy object.
In one embodiment of this invention; The above-mentioned 3 D stereoscopic image that on screen, shows; Make the step that has the depth of field between dummy object and the screen in the 3 D stereoscopic image also comprise the depth of field between adjustment dummy object and the screen, make dummy object be presented in beholder the place ahead and be positioned within beholder's the arm reach range.
In one embodiment of this invention, above-mentionedly judge that whether gesture comprises according to the depth of field between dummy object and the screen near the step of dummy object, the operating area of defining virtual object, and utilize this operating area to judge that whether gesture is near dummy object.
In one embodiment of this invention, above-mentioned operating area comprises the solid space of containing between the preset plane, depth of field front and back, or contains the dummy object interior solid space of predeterminable range on every side.
In one embodiment of this invention, above-mentioned when judging gesture near dummy object, the step of dummy object being carried out the corresponding operation of gesture comprises when judging that gesture gets in the operating area, then dummy object is carried out the pairing operation of gesture.
In one embodiment of this invention; Above-mentioned when judging gesture near dummy object; The step that dummy object is carried out the corresponding operation of gesture comprise when judge that gesture gets in the operating area and and dummy object between distance during less than predeterminable range, then dummy object is carried out the operation of gesture correspondence.
In one embodiment of this invention; Above-mentioned when judging gesture near dummy object; The step of dummy object being carried out the corresponding operation of gesture comprises when the judgement gesture gets in the operating area and touches dummy object, and dummy object is carried out the pairing operation of gesture.
The present invention proposes a kind of control system of three-dimensional tridimensional virtual object in addition, and it comprises display device, video capturing device and treating apparatus.Wherein, display unit is in order to show 3 D stereoscopic image, makes to have the depth of field between dummy object and the display device in the 3 D stereoscopic image.Video capturing device is then in order to obtain the image in screen the place ahead.Treating apparatus is coupled to display device and video capturing device, in order to detecting the gesture in the image, and whether judges this gesture near dummy object, and during near dummy object, dummy object is carried out the pairing operation of gesture in gesture.
The present invention proposes a kind of treating apparatus of three-dimensional tridimensional virtual object again, is suitable for controlling the dummy object in the 3 D stereoscopic image that display device shows.This handles device and comprises the identification module and judge module.Wherein, the identification module is the image in order to reception display device the place ahead that video capturing device obtained, and discerns the gesture in this image, has the depth of field between dummy object in the 3 D stereoscopic image that wherein display device showed and the display device.Judge that module is in order to whether judging gesture near dummy object, and during near dummy object, dummy object is carried out the corresponding operation of gesture in gesture.
Based on above-mentioned; The control method of three-dimensional tridimensional virtual object of the present invention, control system and treating apparatus can let the beholder by gesture change with 3 D stereoscopic image in dummy object carry out interaction, for example move, rotate, amplify or dwindle dummy object or the like.The present invention can be widely used in fields such as medical science, engineering, amusement, education and training, thereby improves the convenience of device operation.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.
Description of drawings
Fig. 1 is the block scheme according to the control system of the three-dimensional tridimensional virtual object that one embodiment of the invention showed.
Fig. 2 is the synoptic diagram according to the control system of the three-dimensional tridimensional virtual object that one embodiment of the invention showed.
Fig. 3 (a) is the synoptic diagram that changes according to the gesture that one embodiment of the invention showed to Fig. 3 (c).
Fig. 4 is the process flow diagram according to the control method of the three-dimensional tridimensional virtual object that another embodiment of the present invention showed.
Fig. 5 is the block scheme according to the control system of the three-dimensional tridimensional virtual object that another embodiment of the present invention showed.
Fig. 6 is the operating area synoptic diagram according to the three-dimensional tridimensional virtual object that another embodiment of the present invention showed.
Fig. 7 is according to the operating area of the three-dimensional tridimensional virtual object that another embodiment of the present invention showed and the relative position synoptic diagram of video capturing device.
Fig. 8 is the synoptic diagram according to the image that video capturing device obtains that another embodiment of the present invention showed.
Reference numeral:
100,500: the control system of three-dimensional tridimensional virtual object
110,510: display device
120,520: video capturing device
130,530: treating apparatus
The 210:3D display
The 220:3D video camera
230: computing machine
240,640: dummy object
250,660: beholder's hand
The 260:3D glasses
310-350: the direction of arrow
540: the identification module
550: judge module
610: screen
620: operating area
630: angular field of view
650: image
L_eye: left eye
R_eye: right eye
D: the depth of field
S410-S450: step
Embodiment
What the 3D stereopsis let the beholder is surprised most floats on sensation within reach at the moment no more than the object in the image often has, and is that technology still can't provide the beholder directly to carry out interaction with the dummy object in hand and the 3D stereopsis at present regrettably.To this; The present invention is according to the dummy object in the 3 D stereoscopic image and the depth of field between the screen; Around dummy object, define an operating area, let the user can be by in this operating area, carrying out gesture controlling dummy object, and then carry out interaction with dummy object.This dummy object can according to beholder's gesture carry out mobile, effect such as rotate, amplify or dwindle.In order to reach above-mentioned effect and to make content of the present invention more clear, the example that can implement according to this really as the present invention with the next embodiment of enumerating.
Fig. 1 is the control system block scheme according to the three-dimensional tridimensional virtual object that one embodiment of the invention showed.Fig. 2 is the control system synoptic diagram according to the three-dimensional tridimensional virtual object that one embodiment of the invention showed.As shown in Figure 1, the control system 100 of three-dimensional tridimensional virtual object can include but is not limited to display device 110, video capturing device 120 and treating apparatus 130.
Treating apparatus 130 is judged whether moving near dummy object of gesture in order to the gesture in the image that detects video capturing device 120 and obtained, and in gesture during near dummy object, to the pairing operation of dummy object execution gesture.Explain that in conjunction with Fig. 2 treating apparatus 130 for example is a computing machine 230, it is the major control center as whole control system, be responsible for to detect the image taken with analyzing 3D video camera 220, and the gesture of observing beholder's hand 250 in the image changes.Wherein, when the gesture of beholder's hand 250 during near dummy object 240, computing machine 230 is promptly carried out the pairing operation of gestures to dummy object 240.In detail, but the basic gesture of predefined in the computing machine 230, and can set up gesture contrasting data storehouse, to carry out the gesture analysis and to carry out the pairing operation of gesture.
For instance, Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are the synoptic diagram according to the gesture that one embodiment of the invention showed.Please be simultaneously with reference to Fig. 2 and Fig. 3 (a), when the palm of beholder's hand 250 to the direction of arrow 310 horizontal slidings, i.e. representative is moved to the left, this computer-chronograph 230 can be carried out the operation that is moved to the left to dummy object 240; When the palm of beholder's hand 250 to the direction of arrow 320 horizontal slidings, i.e. representative moves right, this computer-chronograph 230 can be carried out the operation that moves right to dummy object 240.In addition, shown in Fig. 3 (b), if beholder's hand 250 is to hold and gets the thing shape, and as the direction of arrow 330 do the action of left rotation and right rotation, then represent rotary manipulation, this computer-chronograph 230 can be carried out the action of rotating to dummy object 240.And for example shown in Fig. 3 (c), get the thing shape if beholder's hand 250 is to pinch, and move toward the direction of arrow 340,350 respectively, then represent amplifieroperation, this computer-chronograph 230 can be carried out the action of amplifying to dummy object 240.Above-mentioned several embodiment that are merely gesture operation of the present invention, but be not limited to this allly change and dummy object is carried out corresponding operation are spirit of the present invention place by detecting gesture.
Below lift the implementation step that an embodiment explains control method of the present invention in addition.Fig. 4 is the process flow diagram according to the control method of the three-dimensional tridimensional virtual object that another embodiment of the present invention showed.Fig. 5 is the block scheme according to the control system of the three-dimensional tridimensional virtual object that another embodiment of the present invention showed.The control system 500 of three-dimensional tridimensional virtual object can include but is not limited to display device 510, video capturing device 520 and treating apparatus 530.Wherein, treating apparatus 530 comprises identification module 540 and judges module 550.Below please cooperate simultaneously with reference to Fig. 4 and Fig. 5.
At first, shown in step S410, display device 510 shows 3 D stereoscopic image in screen, makes to have the depth of field between dummy object and the screen in this 3 D stereoscopic image.Wherein, treating apparatus 530 can be adjusted the depth of field between dummy object and the screen, makes dummy object be presented in beholder the place ahead and be positioned within beholder's the arm reach range.
In detail; Treating apparatus 530 can negative parallax (negative parallax) angle projection dummy object; And the depth of field between adjustment dummy object and the screen, make dummy object be positioned at approximately the be grown up distance of arm elongation of beholder the place ahead, this is the viewing ratio of 3 D stereoscopic image.In addition, the adjustment depth of field also makes things convenient for the beholder next to utilize gesture and dummy object to carry out interaction.
Then shown in step S420, video capturing device 520 obtains the image in screen the place ahead, and writes down the data such as position and the depth of field of beholder's hand in this image, and data is passed to identification module 540 analyze.Wherein, the transmission of data wired mode capable of using (for example being the USB transmission) or wireless mode (for example being Bluetooth transmission) transmit, and do not limit at this.Identification module 540 receives image and the related data that video capturing device 520 is obtained, and detects the gesture (step S430) in the image according to this.
At step S440, judge that module 550 judges whether gesture approaches dummy object.Wherein, judge that module 550 can be earlier according to the depth of field between dummy object and the screen, the operating area of defining virtual object, and utilize this operating area to judge whether gesture approaches dummy object.This operating area can be contained the solid space between the one preset plane, depth of field front and back, or contains the dummy object interior solid space of predeterminable range on every side, does not limit at this.
For instance, Fig. 6 is the operating area synoptic diagram according to the three-dimensional tridimensional virtual object that another embodiment of the present invention showed.Please with reference to Fig. 6, the distance between screen 610 and the operating area 620 is depth of field D, and operating area 620 is to preset the solid space between the plane before and after containing depth of field D.The scope of this operating area 620 can be set by the user in advance.Be noted that the scope of operating area must be in the visual angle of video capturing device 520.In other words, the image that obtained of video capturing device 520 must be able to be used for defining beholder's the position of hand in operating area 620.
Fig. 7 is according to the operating area of the three-dimensional tridimensional virtual object that another embodiment of the present invention showed and the relative position synoptic diagram of video capturing device.As shown in Figure 7, the scope of operating area 620 is that dummy object 640 then is positioned at the scope of operating area 620 in the angular field of view 630 of video capturing device 520.Be noted that at this though dummy object 640 can not appear in the image that video capturing device 520 obtained, treating apparatus 530 still can be learnt the physical location of dummy object 640 in operating area 620 from the 3 D stereoscopic image of original demonstration.
Fig. 8 is the synoptic diagram according to the image that video capturing device obtains that another embodiment of the present invention showed.Please be simultaneously with reference to Fig. 5 and Fig. 8; The treating apparatus 530 of present embodiment can analyze the position of beholder's hand 660 from the image 650 that video capturing device 520 is obtained; And compare with the scope of the operating area 620 of dummy object 640, and then whether the hand 660 of judging the beholder is near dummy object 640.
Get back to Fig. 4,, when treating apparatus 530 is judged gesture and approached dummy object, promptly dummy object is carried out the pairing operation of this gesture (step S450) at step S450.Wherein, for judging whether gesture approaches dummy object, the present invention provides three kinds of different standards, and a kind of is to judge whether gesture gets in the operating area; A kind of be judge whether gesture gets in the operating area and and dummy object between distance less than a predeterminable range; A kind of then is to judge whether gesture gets in the operating area and touch dummy object.
With Fig. 8 is example, and in one embodiment, treating apparatus 530 is when the gesture of the hand of judging the beholder 660 gets in the operating area 620, promptly dummy object 640 is carried out the pairing operation of gesture; In another embodiment; Treating apparatus 530 be the gesture at the hand 660 of judging the beholder get in the operating area 620 and and dummy object 640 between distance during less than predeterminable range; Just dummy object 640 is carried out the pairing operation of gesture; Wherein, predeterminable range can be the user and sets in advance according to actual conditions, does not limit at this; In another embodiment, treating apparatus 530 is that the gesture at the hand 660 of judging the beholder gets in the operating area 620 and when touching dummy object 640, to the pairing operation of dummy object 640 execution gestures.The pairing operation of gesture is existing in the above-described embodiments to be described in detail about dummy object 640 is carried out, so repeat no more at this.
Analytical technology as for gesture mainly can be divided into two types, and one of which is gesture identification (hand-shape recognition), and another follows the tracks of (hand-motion recognition) for gesture.Below illustrate gesture identification and gesture and follow the tracks of employed method:
Gesture identification a kind of multiple dimensioned (multi-scale) capable of using method; The a large amount of instant video data of collected are divided into array; Image is carried out obfuscation in various degree, can remove the fine difference between image by this, then; Image after the obfuscation and gesture contrasting data storehouse are contrasted repeatedly, and then identify final gesture.
Gesture is followed the tracks of dimensionality reduction capable of using and is quickened robust feature (speeded-up robust features SURF) be the basis, and (principal component analysis PCA) does the processing of reduction dimension to the SURF characteristic to use PCA.SURF strengthens the detection of image and to the feature description of image, can overcome the interference such as convergent-divergent size, rotation change, shadow conversion of gesture image in the gesture identification.SURF seeks stable point in metric space (scale space), calculate its main direction, is used for the alignment of matched feature points, and the acceleration computing when mating via the important characteristic information of PCA reduction dimension taking-up again identifies gesture at last.
In sum, the present invention can let the beholder by gesture change with 3 D stereoscopic image in dummy object carry out interaction, for example move, rotate, amplify or dwindle dummy object or the like.In view of the above, the present invention can also be applied to fields such as medical science, engineering and education and training, and the user is provided operational convenience except being applied to interactive film, interactive game etc. to promote its amusement function.
Though the present invention discloses as above with embodiment, so it is not in order to limiting the present invention, any under those of ordinary skill in the technical field, when can doing a little change and retouching, and do not break away from the spirit and scope of the present invention.
Claims (11)
1. the control method of a three-dimensional tridimensional virtual object comprises the following steps:
Show a 3 D stereoscopic image in a screen, make to have a depth of field between a dummy object and this screen in this 3 D stereoscopic image;
Obtain an image in this screen the place ahead;
Detect the gesture in this image;
Judge that whether this gesture is near this dummy object; And
When judging this gesture, this dummy object is carried out the corresponding operation of this gesture near this dummy object.
2. method according to claim 1 wherein shows this 3 D stereoscopic image in this screen, makes the step that has this depth of field between this dummy object and this screen in this 3 D stereoscopic image also comprise:
Adjust this depth of field between this dummy object and this screen, make this dummy object be presented in a beholder the place ahead and the arm that is positioned at this beholder can reach within the scope.
3. method according to claim 1, judge that wherein whether this gesture comprises near the step of this dummy object:
According to this depth of field between this dummy object and this screen, define an operating area of this dummy object; And
Utilize this operating area to judge that whether this gesture is near this dummy object.
4. method according to claim 3, wherein this operating area comprises the solid space of containing between this one preset plane, depth of field front and back, or contains this dummy object interior solid space of a predeterminable range on every side.
5. method according to claim 3, wherein when judging this gesture near this dummy object, the step of this dummy object being carried out this corresponding operation of this gesture comprises:
When judging that this gesture gets in this operating area, this dummy object is carried out this corresponding operation of this gesture.
6. method according to claim 5, wherein when judging this gesture near this dummy object, the step of this dummy object being carried out this corresponding operation of this gesture comprises:
When judge that this gesture gets in this operating area and and this dummy object between distance during less than a predeterminable range, this dummy object is carried out this corresponding operation of this gesture.
7. method according to claim 6, wherein when judging this gesture near this dummy object, the step of this dummy object being carried out this corresponding operation of this gesture comprises:
When this gesture of judgement gets in this operating area and touches this dummy object, this dummy object is carried out this corresponding operation of this gesture.
8. the control system of a three-dimensional tridimensional virtual object comprises:
One display device in order to show a 3 D stereoscopic image, makes to have a depth of field between a dummy object and this display device in this 3 D stereoscopic image;
One video capturing device is in order to obtain an image in this display device the place ahead; And
One treating apparatus couples this display device and this video capturing device, in order to detect the gesture in this image, whether judges this gesture near this dummy object, and during near this dummy object, this dummy object is carried out the corresponding operation of this gesture in this gesture.
9. the control system of three-dimensional tridimensional virtual object according to claim 8; Wherein this treating apparatus is according to this depth of field between this dummy object and this screen; Define an operating area of this dummy object, and utilize this operating area to judge whether this dummy object is carried out this corresponding operation of this gesture.
10. the control system of three-dimensional tridimensional virtual object according to claim 9; Wherein this treating apparatus judge that this gesture gets in this operating area, this gesture gets in this operating area and and this dummy object between distance less than a predeterminable range; Or this gesture gets in this operating area and when touching this dummy object, this dummy object is carried out this corresponding operation of this gesture.
11. the treating apparatus of a three-dimensional tridimensional virtual object is suitable for controlling the dummy object in the 3 D stereoscopic image that a display device shown, comprising:
One identification module; In order to receive an image in this display device the place ahead that a video capturing device obtained; And discern the gesture in this image, have a depth of field between this dummy object in this 3 D stereoscopic image that wherein this display device showed and this display device; And
One judges module, in order to whether judging this gesture near this dummy object, and during near this dummy object, this dummy object is carried out the corresponding operation of this gesture in this gesture.
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