CN102866772B - Interdynamic image system, interactive control device and How It Works thereof - Google Patents
Interdynamic image system, interactive control device and How It Works thereof Download PDFInfo
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Abstract
The present invention proposes a kind of interdynamic image system, interactive control device and How It Works thereof, and this interdynamic image system comprises: a main frame, produces interactive image; One light source, sends at least one light; And an interactive control device, and data transmission between this main frame, and switch between a mode of operation and an idle state.This interactive control device comprises: an image sensor, and under this idle state, capture one first image, wherein this first image comprises a reference point image of this image formation by rays; And a control circuit, a pixel region is chosen according to the position of this reference point image in this first image, control this image sensor to scan this pixel region and obtain one second image, compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interactive control device is still in this idle state.
Description
Technical field
The present invention relates to a kind of interdynamic image system, interactive control device and How It Works thereof, refer to a kind of image sampling condition that can adjust image module in interactive device under idle state especially, thus the interdynamic image system of saving electric energy, interactive control device and How It Works thereof.
Background technology
Existing game remote device, as " indicator positioning device of video camera " of No. I267754th, TW patent, it can be applicable to a light gun game, and this indicator positioning device is provided with control circuit in photography indicator device, and it is connected to video camera, computing unit and communication interface.This communication interface is connected to main frame, and this video camera front is provided with filter, and on screen, be provided with the multiple light-emitting components can taken for video camera.When a user uses this photography indicator device to carry out the program performed by main frame, when this photo-opportunity shooting display screen, because video camera has filter, therefore the light source filtering beyond the spectrum that light-emitting component can be sent, so the picture captured by video camera only there will be the light source of light-emitting component.Transfer to computing unit calculate the coordinate figure of video camera aiming point and be sent to main frame in this picture again, make main frame that this coordinate figure can be utilized to carry out the control of being correlated with.
But in actual use, in order to promote the property convenient for control of telechiric device, telechiric device utilizes between wireless telecommunications and main frame and carries out data transmission, and use the electric energy needed for a battery module supply telechiric device entirety.Because telechiric device comprises several dissipative cell, the power consumption of each element must be reduced to extend the life-span of battery module as far as possible.Generally for and promote the precision that computing unit calculates aiming point coordinate, the image capture frequency acquire images that the better use of video camera is higher, but high image capture rate can increase the computational load of computing unit relatively, and then increase the total consumption electric energy of telechiric device, and reduce the serviceable life of battery module.
TW patent discloses No. 200912700 open a kind of " displacement detection apparatus and electricity saving method thereof ".This displacement detection apparatus should be a mouse, comprises a light source and an image acquisition unit, and wherein image acquisition unit can capture the image that light source projects is formed in a surface continuously.Displacement detection apparatus can calculate the alternate position spike of references object in aforementioned continuous image to obtain motion vector (motionvector), when motion vector value is all less than a threshold values within a schedule time, then displacement detection apparatus is identified and is in idle state and non-operating state.If displacement detection apparatus is in idle state, the glow frequency of light source can be reduced, so can reduce power consumption.Similarly, TW patent discloses No. 200943131 open a kind of " displacement detection apparatus and electricity saving method thereof ", it according to the displacement of this displacement detection apparatus between the double light emission period of light source, to adjust the light period of light source, and can be expected and can reduce power consumption.
The target being different from aforementioned two publication instructionss is mouse, No. I338241st, TW patent open a kind of " interdynamic image system, interactive device and How It Works thereof ", by the sampling frequency of image module in modulation interactive device in real time, to save the consumption electric energy of interactive device entirety.No matter reduce the sampling frequency of image module, or reduce the glow frequency of light source, these prior aries are still acquisition complete picture (frame) and process the data of this complete picture, therefore still effectively cannot reduce power consumption.
In view of this, the present invention, namely for above-mentioned the deficiencies in the prior art, proposes a kind of image sampling condition that can adjust image module in interactive device under idle state, thus the interdynamic image system of saving electric energy, interactive control device and How It Works thereof.
Patent that may be relevant to this case can See U. S. Patent or publication US7, and 839,388; US7,738,013; US7,738,013; US7,619,669; US20070024587 etc.
Summary of the invention
One of the object of the invention is to overcome the deficiencies in the prior art and defect, proposes a kind of interdynamic image system can saving electric energy.
One of another object of the present invention is, proposes a kind of interactive control device for interdynamic image system.
One of another object of the present invention is, proposes a kind of How It Works of interdynamic image system.
For reaching above-mentioned purpose, saying with regard to one of them viewpoint, the invention provides a kind of interdynamic image system, comprising: a main frame, produce interactive image; One light source, sends at least one light; And an interactive control device, and data transmission between this main frame, and switch between a mode of operation and an idle state, comprising: an image sensor, under this idle state, capture one first image, wherein this first image comprises a reference point image of this image formation by rays; And a control circuit, a pixel region is chosen according to the position of this reference point image in this first image, control this image sensor to scan this pixel region and obtain one second image, compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interactive control device is still in this idle state.
Wherein in a kind of enforcement kenel, this pixel region is the identical or partial pixel scope of these reference point image respective pixel lattice, such as: there is the pixel coverage of high-high brightness centre.
Wherein in a kind of enforcement kenel, this pixel region is the expansion pixel coverage comprising these reference point image respective pixel lattice.
Wherein in a kind of enforcement kenel, this monochrome information is the brightness value of a pixel in this pixel region or the average brightness of multiple pixel.
Say with regard to another viewpoint, the invention provides a kind of interactive control device, accept to send at least one light from a light source, and switch between a mode of operation and an idle state, this interactive control device comprises: an image sensor, under this idle state, capture one first image, wherein this first image comprises a reference point image of this image formation by rays; And a control circuit, a pixel region is chosen according to the position of this reference point image in this first image, control this image sensor to scan this pixel region and obtain one second image, compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interactive control device is still in this idle state.
Say with regard to another viewpoint, invention further provides a kind of How It Works of interdynamic image system, comprise: under idle state, capture one first image; At least one pixel region is chosen in position according to reference point image at least one in this first image; Scan this pixel region to obtain one second image; And compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interdynamic image system is still in this idle state.
Wherein in a kind of enforcement kenel, this interdynamic image system is identified and is still in this idle state, then reduce the sampling frequency of image in this interdynamic image system or reduce the glow frequency of light source in this interdynamic image system.
Wherein in a kind of enforcement kenel, this interdynamic image system is identified and is not in this idle state, then enter this mode of operation.
Illustrate in detail below by specific embodiment, when the effect being easier to understand object of the present invention, technology contents, feature and reach.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the interdynamic image system of one embodiment of the invention;
Fig. 2 A ~ 2D shows the image that interactive control device of the present invention acquisition comprises multiple reference point image;
Fig. 3 is the process flow diagram of the How It Works that idle state of the present invention confirms.
Symbol description in figure
10 interdynamic image systems
11 interactive control devices
111 wireless modules
112 control circuits
113 image sensors
12 main frames
121 wireless modules
122 processors
13 light sources
131 reference point
14 video displays
21 ~ 23 reference point images
20a ~ 20d image
241 ~ 245 pixel regions
31 ~ 36 steps
Embodiment
The remote control that the present invention is applicable to webpage on the execution of the interactive game application of game host, display is browsed and the operation of other remote control audio-video system (such as: intelligent television smartTV), but because game host is the most common at present, therefore be illustrated for game host below.
With reference to shown in Fig. 1, it discloses the schematic diagram of the interdynamic image system of one embodiment of the invention.Interdynamic image system 10 comprises interactive control device 11, main frame 12, light source 13 and a video display 14.The embodiment of main frame 12 can be a game host, a computer system host or an interactive image and dials and put device, can perform interactive game application, be shown on this video display 14 for user's manipulation to produce interactive image.Main frame 12 comprises wireless module 121 and a processor 122, and by transmitted in both directions data (RF1 and RF2) between wireless module 111 in wireless module 121 and interactive control device 11, processor 122 can according to described data to carry out interactive game.This main frame 12 can also wired or wireless mode be connected with this display 14, or it is inner directly this main frame 12 to be arranged at this display 14.
The screen of this video display 14 shows a cursor, what embodiment included, but not limited to the point of impact of a light gun and image clicks arrow etc.Interactive control device 11 comprises wireless module 111, control circuit 112 and an image sensor 113, the wherein image of reference point 131 in image sensor 113 fechtable light source 13, and control circuit 112 determines the position of interactive control device 11, moving direction and amount of movement according to the image of reference point 131, that is the location of aforementioned cursor and displacement.
The embodiment of the reference point 131 of light source 13 can be, but be not limited to, the reference point of the various shapes that the luminescence unit of several infrared light emitting diodes or specific wavelength rearranges, it can be electrically connected to main frame 12 or this video display 14, electric energy that can also be required when independently power supply supplies luminescence voluntarily.This light source 13 also can be integrated among this display 14 or this main frame 12.In addition, the number of reference point 131 to be not limited in icon 6, can also be one or more.Interactive control device 11 captures the image of described reference point 131, changes with the relative position and/or angle that judge this interactive control device 11 and this reference point, with the position of relation control cursor on video display 14 and movement.Interactive control device 11 is in order to manipulate games performed by this main frame 12 or a computer software.When performed by this main frame 12, person is a Games Software, this interactive device 11 such as can be used as (but being not limited to) light gun, a billiard stick, a golf clubs, a tennis racket, a bat, a Badminton racket and table tennis bat etc. to manipulate the carrying out of game.When performed by main frame 12, person is a computer software, this interactive device 11 such as can be used as a pointer (cursor) locating device to manipulate the carrying out of this computer software.
Fig. 2 A ~ 2D shows the image that interactive control device of the present invention acquisition comprises multiple reference point image.In Fig. 2 A ~ 2D, image 20a ~ 20d is the image that multiple reference point images in image sensor 113.Fig. 2 A is by being captured a complete image at idle state, and reference point image is reference point (bright spot) imaging region.In this figure, reference point image 21 ~ 23 is only illustration, is not limited to the pixel of a unit, and in figure, a unit also can represent multiple pixel again.In addition; image 20a ~ 20d is the image that interactive control device 11 captures under idle state; the decision mechanism so switching to idle state by mode of operation can adopt the method disclosed by any prior art, such as: aforementioned utilize motion vector to judge entering the methods such as idle state all belongs to protection scope of the present invention.
In Fig. 2 A, image 20a has three reference point images 21 ~ 23, this three reference point images 21 ~ 23 are represented with white portion in figure, other thin lattice array region is that image sensor 113 scans the pixel cell not finding reference point image, and this image 20a is that each pixel cell of image sensor 113 complete scan obtains.
In Fig. 2 B image 20b for image sensor 113 with in image 20a corresponding to these three reference point images pixel compartments (pixelcell) scanning and obtain, other pixel compartments is closed effectively to reduce power consumption, the pixel cell of the scanning that is not unlocked with the representative of closely spaced lattice column region in figure.That is the control circuit 112 of interactive control device 11 can open the pixel compartments of these three reference point images 21 ~ 23 in correspondence image 20a in image sensor 113, and only scans with described pixel compartments.In figure, reference point image 21 and 23 is still obtained by scanning in situ, but reference point image 22 also cannot be obtained by scanning by scanning area former, and therefore interactive control device 11 can be switched to mode of operation by idle state by control circuit 112.
For confirming that in image 20b, at least one reference point image is not present in position, image 20a Central Plains, and interactive control device 11 is switched to mode of operation, control circuit 112 can compare the monochrome information of the pixel of these three reference point images 21 ~ 23 in correspondence image 20a in a threshold values and image 20b, such as: in image 20b, in correspondence image 20a, the brightness value of the pixel cell of reference point image 22 or average brightness lower than a reservation threshold, then can judge that this reference point image 22 or bright spot have left position, image 20a Central Plains.Otherwise, if the brightness of this pixel cell is higher than a reservation threshold, then can judge this reference point image 22 still in position, image 20a Central Plains, if reference point image 21 and 23 is also in the position of their script, then can think that interactive control device 11 is still in idle state.When confirmation interactive control device 11 is also in idle state, the sampling frequency (framerate) of image sensor 113 can reduce by control circuit 112 further, or reduces the glow frequency of light source 13, to save power consumption.Namely can determining according to system requirements disappears in a bright spot switches to mode of operation, as long as or have a bright spot sustainable existence namely to remain on idle state, also can be set as having at least N number of bright spot to exist further and just can remain on idle state.
Fig. 2 B is the pixel compartments of only three reference point images in scan image 20a, so may because of noise or trickle the rocking of desktop and misidentification interactive control device 11 leaves idle state.Therefore can the pixel compartments of three reference point images be benchmark in image 20a, and select multiple pixel compartments to be sweep limit again to surrounding expansion, as having three pixel regions 241 ~ 243 in Fig. 2 A as sweep limit, or be called concern district, that is the pixel compartments in other region can be closed when next picture scans.In the present invention, pixel region can be the sweep limit of aforementioned expansion, or the pixel coverage at script reference point image place.Namely Fig. 2 C is that next picture scans the image 20c obtained, and in pixel region 242 ~ 243, reference point image 22 ~ 23 does not all change its position, but in pixel region 241, the position of reference point image 21 changes.Because reference point image 21 is still arranged in pixel region 241, therefore control circuit 112 can judge that interactive control device 11 does not leave idle state.If or detecting pixel region 241 has at least one bright spot to exist, just can judge that interactive control device 11 does not leave idle state.So-called bright spot exists or judges, namely the brightness value of a pixel is greater than a reservation threshold, then can assert that this pixel is bright spot place.
See Fig. 2 D, in image 20d, pixel region 244 and 245 is that to choose column of pixels lattice according to the position of three reference point images 21 ~ 23 in image 20a be sweep limit.In other embodiment, whole hurdle pixel compartments can also be selected to be sweep limit, the sweep limit of foregoing embodiments can be set as with reference to formed objects corresponding to image 21 ~ 23, the pixel compartments that expands or reduce.
Previous embodiment illustrates with sketch, and this paragraph adopts actual example to be further described.The pixel compartments size of one image sensor is 128 × 96, if there are two reference point images in the first image, and each reference point image size is about 30 ~ 50 pixels.Two pixel regions are set to 50 pixel compartments, and therefore image sensor only needs the pixel compartments of unlatching 0.81%, and it is calculated as follows: (50 × 2)/(128 × 96)=0.00813.Equally, in interactive control device 11, the circuit module such as signal and image processing can reduce process number of pixels in proportion, therefore can reduce power consumption further.
Fig. 3 is the process flow diagram of the How It Works of interdynamic image system of the present invention.See step 31, under idle state, interactive control device can open whole pixel compartments of image sensor to capture one first image.At least one pixel region is chosen in position according to reference point image at least one in the first image, and pixel region can be same range or the expanded scope of the respective pixel lattice comprising reference point image again, as shown at step 32.According to shown in step 33, the pixel compartments in image sensor scanning element region is to obtain one second image.As indicated at step 34, the monochrome information of at least one pixel in this pixel region in a threshold values th and this second image is compared, such as: brightness value or average brightness, to confirm whether this interactive control device is still in this idle state.As shown at step 35, when confirmation interactive control device is also in idle state, further the sampling frequency of image sensor can be reduced, or reduce the glow frequency of light source, to save power consumption.If sampling frequency or glow frequency are down to lowest frequency value, just do not need to downgrade again, and direct rebound step 33.Otherwise, if the brightness value of this pixel is lower than threshold values th, then can judges this reference point image not in the first position, image Central Plains, then require that dynamic control device enters mode of operation, as indicated in step 36.
Below for preferred embodiment, the present invention is described, just the above, be only and make those skilled in the art be easy to understand content of the present invention, be not used for limiting interest field of the present invention.Under same spirit of the present invention, those skilled in the art can think and various equivalence change.Such as, the scope of pixel region is selected and quantity, can be different from the illustration of previous embodiment.Such as, or confirming that reference point image is still positioned at the method for each pixel region: by the brightness correlation values of pixel single in compared pixels region or the brightness correlation values of multiple pixel, is also the category of the present invention's protection.Scope of the present invention should contain above-mentioned and other all equivalence change.
Claims (20)
1. an interdynamic image system, is characterized in that, comprises:
One main frame, produces interactive image;
One light source, sends at least one light; And
One interactive control device, and data transmission between this main frame, and switch between a mode of operation and an idle state, comprising:
One image sensor, under this idle state, capture one first image, wherein this first image comprises a reference point image of this image formation by rays; And
One control circuit, a pixel region is chosen according to the position of this reference point image in this first image, wherein the scope of this pixel region is less than the scope of this first image, control this image sensor only to scan this pixel region and obtain one second image, simultaneously, close beyond this pixel region, not by other pixel scanned, compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interactive control device is still in this idle state.
2. interdynamic image system as claimed in claim 1, wherein, this pixel region is the same pixel scope of these reference point image respective pixel lattice.
3. interdynamic image system as claimed in claim 1, wherein, this pixel region is the expansion pixel coverage comprising these reference point image respective pixel lattice.
4. interdynamic image system as claimed in claim 1, wherein, this pixel region is the partial pixel scope of these reference point image respective pixel lattice.
5. interdynamic image system as claimed in claim 1, wherein, this monochrome information is the brightness value of a pixel in this pixel region or the average brightness of multiple pixel.
6. interdynamic image system as claimed in claim 1, wherein, this light source comprises the reference point that multiple meeting emits beam.
7. interdynamic image system as claimed in claim 1, wherein, this interactive control device is identified and is still in this idle state, then this control circuit reduces the sampling frequency of this image sensor or notifies that this main frame is to reduce the glow frequency of this light source.
8. an interactive control device, accept to send at least one light from a light source, and switch between a mode of operation and an idle state, it is characterized in that, this interactive control device comprises:
One image sensor, under this idle state, capture one first image, wherein this first image comprises a reference point image of this image formation by rays; And
One control circuit, a pixel region is chosen according to the position of this reference point image in this first image, wherein the scope of this pixel region is less than the scope of this first image, control this image sensor only to scan this pixel region and obtain one second image, simultaneously, close beyond this pixel region, not by other pixel scanned, compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interactive control device is still in this idle state.
9. interactive control device as claimed in claim 8, wherein, this pixel region is the same pixel scope of these reference point image respective pixel lattice.
10. interactive control device as claimed in claim 8, wherein, this pixel region is the expansion pixel coverage comprising these reference point image respective pixel lattice.
11. interactive control devices as claimed in claim 8, wherein, this pixel region is the partial pixel scope of these reference point image respective pixel lattice.
12. interactive control devices as claimed in claim 8, wherein, this monochrome information is the brightness value of a pixel in this pixel region or the average brightness of multiple pixel.
13. interactive control devices as claimed in claim 8, wherein, this interactive control device is identified and is still in this idle state, then this control circuit reduces the sampling frequency of this image sensor or reduces the glow frequency of this light source.
The How It Works of 14. 1 kinds of interdynamic image systems, is characterized in that, comprises:
One first image is captured under idle state;
At least one pixel region is chosen in position according to reference point image at least one in this first image, and wherein the scope of this pixel region is less than the scope of this first image;
Only scan this pixel region to obtain one second image, close beyond this pixel region, not by other pixel scanned meanwhile; And
Compare the monochrome information of at least one pixel in this pixel region in a threshold values and this second image, to confirm whether this interdynamic image system is still in this idle state.
The How It Works of 15. interdynamic image systems as claimed in claim 14, wherein, this pixel region is the same pixel scope of these reference point image respective pixel lattice.
The How It Works of 16. interdynamic image systems as claimed in claim 14, wherein, this pixel region is the expansion pixel coverage comprising these reference point image respective pixel lattice.
The How It Works of 17. interdynamic image systems as claimed in claim 14, wherein, this pixel region is the partial pixel scope of these reference point image respective pixel lattice.
The How It Works of 18. interdynamic image systems as claimed in claim 14, wherein, this monochrome information is the brightness value of a pixel in this pixel region or the average brightness of multiple pixel.
The How It Works of 19. interdynamic image systems as claimed in claim 14, wherein, this interdynamic image system is identified and is still in this idle state, then reduce the sampling frequency of image in this interdynamic image system or reduce the glow frequency of light source in this interdynamic image system.
The How It Works of 20. interdynamic image systems as claimed in claim 14, wherein, this interdynamic image system is identified and is not in this idle state, then enter a mode of operation.
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| CN101128794A (en) * | 2005-01-12 | 2008-02-20 | 辛克光学公司 | Handheld vision based absolute pointing system |
| CN102043459A (en) * | 2009-10-21 | 2011-05-04 | 宏碁股份有限公司 | Energy-saving mode detection method, detection device and detection system for display |
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| US9898675B2 (en) * | 2009-05-01 | 2018-02-20 | Microsoft Technology Licensing, Llc | User movement tracking feedback to improve tracking |
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| CN101128794A (en) * | 2005-01-12 | 2008-02-20 | 辛克光学公司 | Handheld vision based absolute pointing system |
| TWI281623B (en) * | 2005-05-10 | 2007-05-21 | Pixart Imaging Inc | Orientation point orientating method of orientation device and device thereof |
| CN102043459A (en) * | 2009-10-21 | 2011-05-04 | 宏碁股份有限公司 | Energy-saving mode detection method, detection device and detection system for display |
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