CN103729092A - Handheld pointing device and control method thereof - Google Patents
Handheld pointing device and control method thereof Download PDFInfo
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- CN103729092A CN103729092A CN201210385568.0A CN201210385568A CN103729092A CN 103729092 A CN103729092 A CN 103729092A CN 201210385568 A CN201210385568 A CN 201210385568A CN 103729092 A CN103729092 A CN 103729092A
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Abstract
The invention provides a handheld pointing device and a control method thereof. The handheld pointing device comprises a body, an image sensing module and a processing circuit, wherein the image sensing module is arranged in the body and is used for sensing a reference light source so as to capture an image containing the reference light source, and the processing circuit is arranged in the body and is electrically connected with the image sensing module so as to obtain the image containing the reference light source to further calculate the coordinates of the image of the reference light source relative to the image captured by the image sensing module and correct the coordinates according to the distance between the body and the reference light source or the distance variable quantity. The handheld pointing device and the control method thereof can avoid incorrect control of a host machine.
Description
Technical field
The present invention relates to optical touch control technical field, relate in particular to a kind of hand-held indicator device and control method thereof.
Background technology
Hand-held indicator device is in order to be used with main frame, display device and reference light source collocation.With regard to current technology, hand-held indicator device utilizes the image sensing module of establishing in it to carry out sensing to be positioned near reference light source display device display surface, to use the image that acquisition comprises this reference light source.After obtaining the image that comprises this reference light source, the coordinate position of the image that hand-held indicator device calculates this reference light source in institute's pick-up image, and the coordinate position calculating is sent to main frame, make main frame can control according to this object on the shown picture of display device, for example cursor on control interface.
But, when this hand-held indicator device progressively approaches display device in direction under changing, or during progressively away from display device, in the image capturing at image sensing module, there is respectively down skew and situation about being up offset in the image meeting of reference light source because of aforementioned two kinds of situations.Like this, just can make main frame control the object on the shown picture of display device according to wrong coordinate, and then situation about leading to errors occur.
Summary of the invention
The invention provides a kind of hand-held indicator device, it can avoid main frame that aforementioned mistake occurs.
The present invention separately provides the control method of aforementioned hand-held indicator device.
The present invention proposes a kind of hand-held indicator device, and it comprises main body, image sensing module and treatment circuit.Image sensing module is arranged in main body, and in order to sensing reference light source, uses the image that acquisition comprises reference light source.Treatment circuit is also arranged in main body, and be electrically connected image sensing module, to obtain the image that comprises reference light source, and then the coordinate of the image that captures with respect to image sensing module of the image of computing reference light source, and carry out according to distance or the variable in distance amount of main body and reference light source the coordinate that corrected Calculation goes out.
The another control method that proposes a kind of hand-held indicator device of the present invention, described hand-held indicator device comprises main body and image sensing module, described image sensing module is arranged in main body, and in order to sensing reference light source, uses the image that acquisition comprises reference light source.And described control method comprises the following steps: the coordinate of the image that the image of computing reference light source captures with respect to image sensing module; And revise aforementioned coordinate according to distance or the variable in distance amount of main body and reference light source.
The present invention solves the mode of foregoing problems, it is the image sensing module sensing reference light source utilizing in hand-held indicator device, use and make image sensing module capture the image that comprises this reference light source, and then the coordinate of the image that captures with respect to image sensing module of the image that utilizes treatment circuit in hand-held indicator device to calculate reference light source.Therefore, when hand-held indicator device progressively approaches display device in direction under changing, or during progressively away from display device, hand-held indicator device all can be revised according to the distance of the main body of hand-held indicator device and reference light source or variable in distance amount the coordinate of calculated reference light source.Like this, main frame just can be controlled the object on the shown picture of display device according to the revised coordinate of hand-held indicator device, and can not make a mistake.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the skeleton view according to the hand-held indicator device of one embodiment of the invention.
Fig. 2 is the skeleton view according to the hand-held indicator device of another embodiment of the present invention.
Fig. 3 is the skeleton view according to the hand-held indicator device of another embodiment of the present invention.
Fig. 4 is the skeleton view according to the hand-held indicator device of another embodiment of the present invention.
Fig. 5 is the process flow diagram to apparatus control method according to the hand-held finger of one embodiment of the invention.
Embodiment
Technological means and the effect for further setting forth the present invention, for reaching predetermined goal of the invention, taked, below in conjunction with accompanying drawing and preferred embodiment, to the hand-held indicator device and its embodiment of control method, method, step, structure, feature and the effect that propose according to the present invention, be described in detail as follows.
Fig. 1 is the skeleton view according to the hand-held indicator device of one embodiment of the invention.Please refer to Fig. 1, this hand-held indicator device 100 comprises main body 110, image sensing module 120 and treatment circuit 140.In this embodiment, image sensing module 120 is all arranged in main body 110 with treatment circuit 140, but not in order to limit the present invention.Image sensing module 120, in order to sensing reference light source, is used the image that acquisition comprises this reference light source.As for treatment circuit 140, it is electrically connected image sensing module 120, to obtain the image that comprises reference light source, and then the coordinate of the image that captures with respect to image sensing module 120 of the image of computing reference light source, and carry out according to main body 110 and distance or the variable in distance amount of reference light source the coordinate that corrected Calculation goes out.
In the present embodiment, treatment circuit 140 can judge the distance between main body 110 and reference light source according to the size of the image of reference light source.Further, treatment circuit 140 can be in order to judge whether the size of image of reference light source meets one of them of multiple different pre-set dimension.When treatment circuit 140 judges the size of the image of reference light source, meet one of them pre-set dimension, or therein in the error range of a pre-set dimension, just can judge the distance between main body 110 and reference light source according to this pre-set dimension.In certain embodiments, described distance or variable in distance amount do not need directly to calculate its value, the for example image-forming range of two reference light sources, or the imaging size of a reference light source, or the area change amount of reference light source etc. all can be in order to represent distance or variable in distance amount.In addition, described hand-held indicator device 100 also can record a reference light source or the imaging features of more than one reference light source and the corresponding relation of one group of Coordinate Adjusting parameter by look-up table, so that the corresponding relation that treatment circuit 140 is organized Coordinate Adjusting parameter therewith according to the imaging features of at least one reference light source is revised coordinate.
Therefore, when hand-held indicator device 100 progressively approaches display device in direction under changing, or during progressively away from display device, hand-held indicator device 100 just can be revised according to the distance between main body 110 and reference light source or variable in distance amount the coordinate of calculated reference light source.Like this, just can control the object on the shown picture of display device according to revised coordinate with the arrange in pairs or groups main frame of use of hand-held indicator device 100, for example cursor on control interface, and can not make a mistake.
Fig. 2 is the skeleton view according to the hand-held indicator device of another embodiment of the present invention.Please refer to Fig. 2, this hand-held indicator device 200 comprises main body 210, image sensing module 220, acceleration sensing module 230 and treatment circuit 240.In this embodiment, image sensing module 220, acceleration sensing module 230 are all arranged in main body 210 with treatment circuit 240, but not in order to limit the present invention.
Above-mentioned image sensing module 220, in order to sensing reference light source, is used the image that acquisition comprises this reference light source.Acceleration sensing module 230 is in order to obtain the accekeration (representing with VX, VY and these three accekerations of VZ respectively) of main body 210 three dimensions (representing with X, Y and these three axles of Z respectively) spatially.In this embodiment, acceleration sensing module 230 comprises three acceleration transducers (respectively as shown in label 230-1 ~ 230-3).Acceleration transducer 230-1,230-2 and 230-3 be respectively in order to sensing acceleration value VX, accekeration VY and accekeration VZ, and export the accekeration sensing to treatment circuit 240 respectively.When one of them accekeration, for example accekeration VZ, in order to represent that main body 210 approaches reference light source or during away from the acceleration of reference light source, treatment circuit 240 just calculates the displacement of main body 210 with respect to reference light source according to accekeration VZ, further to calculate the distance between main body 210 and reference light source according to this displacement.
Therefore, when hand-held indicator device 200 progressively approaches display device in direction under changing, or during progressively away from display device, hand-held indicator device 200 just can be revised according to the distance of main body 210 and reference light source or variable in distance amount the coordinate of calculated reference light source.In addition, this area has ordinary skill and knows that the knowledgeable should learn, hand-held indicator device 200 also can only adopt an acceleration transducer, as long as this acceleration transducer can be used for obtaining main body 210 and approach reference light source or the accekeration away from reference light source, treatment circuit 240 just can calculate the displacement of main body 210 with respect to reference light source according to this accekeration so, to go out the distance between main body 210 and reference light source according to this displacement calculation.For instance, hand-held indicator device 200 can only adopt acceleration transducer 230-3.
Fig. 3 is the skeleton view according to the hand-held indicator device of another embodiment of the present invention.Please refer to Fig. 3, this hand-held indicator device 300 comprises main body 310, image sensing module 320, distance measuring equipment 330 and treatment circuit 340.In this embodiment, image sensing module 320, distance measuring equipment 330 are all arranged in main body 310 with treatment circuit 340, but not in order to limit the present invention.Image sensing module 320, in order to sensing reference light source, is used the image that acquisition comprises this reference light source.Distance measuring equipment 330 is in order to measure the distance of main body 310 and reference light source, sensing result is exported to treatment circuit 340.And in the present embodiment, distance measuring equipment 330 can adopt laser distance-measuring device to realize.
Therefore, when hand-held indicator device 300 progressively approaches display device in direction under changing, or during progressively away from display device, hand-held indicator device 300 just can be revised according to the distance of main body 310 and reference light source or variable in distance amount the coordinate of calculated reference light source.
Fig. 4 is the skeleton view according to the hand-held indicator device of another embodiment of the present invention.Please refer to Fig. 4, this hand-held indicator device 400 comprises main body 410, image sensing module 420, light-emitting device 430 and treatment circuit 440.In this embodiment, image sensing module 420, light-emitting device 430 are all arranged in main body 410 with treatment circuit 440, but not in order to limit the present invention.Image sensing module 420, in order to sensing reference light source, is used the image that acquisition comprises this reference light source.Light-emitting device 430 is in order to send striped light, and to utilize the residing plane of striped irradiation reference light source or reference light source, the image that image sensing module 420 is captured comprises striped irradiation at reference light source or is radiated at the image of above-mentioned plane.Therefore the fringe spacing in the image that, treatment circuit 440 just can capture according to image sensing module 420 is judged the distance of main body 410 with respect to reference light source.
Therefore, when hand-held indicator device 400 progressively approaches display device in direction under changing, or during progressively away from display device, hand-held indicator device 400 just can be revised according to the distance of main body 410 and reference light source or variable in distance amount the coordinate of calculated reference light source.
By the instruction of the various embodiments described above, this area has ordinary skill and knows that the knowledgeable should summarize the step of hand-held finger of the present invention to apparatus control method.Fig. 5 is the flow chart of steps according to the control method of the hand-held indicator device of one embodiment of the invention.Please refer to Fig. 5, aforementioned hand-held indicator device comprises main body and image sensing module, and described image sensing module is arranged in main body, and in order to sensing reference light source, uses the image that acquisition comprises this reference light source.Described control method comprises the following steps: the coordinate (as shown in step S502) of the image that the image of computing reference light source captures with respect to image sensing module; And carry out according to distance or the variable in distance amount of main body and reference light source the coordinate (as shown in step S504) that corrected Calculation goes out.
In sum, the present invention solves the mode of foregoing problems, it is the image sensing module sensing reference light source utilizing in hand-held indicator device, use and make image sensing module capture the image that comprises this reference light source, and then the coordinate of the image that captures with respect to image sensing module of the image that utilizes treatment circuit in hand-held indicator device to calculate reference light source.Therefore, when hand-held indicator device progressively approaches display device in direction under changing, or during progressively away from display device, hand-held indicator device all can be revised according to the distance of the main body of hand-held indicator device and reference light source or variable in distance amount the coordinate of calculated reference light source.Like this, main frame just can be controlled the object on the shown picture of display device according to the revised coordinate of hand-held indicator device, and can not make a mistake.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (21)
1. a hand-held indicator device, is characterized in that, it comprises:
Main body;
Image sensing module, is arranged in this main body, in order to sensing reference light source, uses the image that acquisition comprises this reference light source; And
Treatment circuit, be arranged in this main body, and be electrically connected this image sensing module, to obtain this image that comprises this reference light source, and then the coordinate of the image that captures with respect to this image sensing module of the image that calculates this reference light source, and revise this coordinate according to distance or the variable in distance amount of this main body and this reference light source.
2. hand-held indicator device according to claim 1, is characterized in that, this treatment circuit judges this distance according to the size of the image of this reference light source.
3. hand-held indicator device according to claim 2, it is characterized in that, this treatment circuit judges whether the size of the image of this reference light source meets one of them of multiple different pre-set dimension, when the size of the image that judges this reference light source meets one of them pre-set dimension, or therein in the error range of a pre-set dimension, this treatment circuit just judges this distance according to this pre-set dimension.
4. hand-held indicator device according to claim 1, it is characterized in that, this image sensing module, more in order to two reference light sources of sensing, is used the imaging that acquisition comprises two reference light sources respectively, and represents this variable in distance amount according to the image-forming range variable quantity of two reference light sources.
5. hand-held indicator device according to claim 1, is characterized in that, this treatment circuit is revised this coordinate according to the area change amount of the image of this reference light source, and wherein the area change scale of the image of this reference light source shows this variable in distance amount.
6. hand-held indicator device according to claim 1, it is characterized in that, more comprise acceleration transducer, this acceleration transducer approaches this reference light source or the accekeration away from this reference light source in order to obtain this main body, and this treatment circuit is revised this coordinate according to this accekeration.
7. hand-held indicator device according to claim 6, is characterized in that, this treatment circuit calculates the displacement of this main body with respect to this reference light source according to this accekeration, to calculate this variable in distance amount according to this displacement.
8. hand-held indicator device according to claim 1, it is characterized in that, more comprise acceleration sensing module, this acceleration sensing module is in order to obtain the accekeration of this main body three dimensions spatially, when one of them accekeration is in order to represent this main body and approach this reference light source or during away from the acceleration of this reference light source, this treatment circuit just calculates the displacement of this main body with respect to this reference light source according to this accekeration, to calculate this variable in distance amount according to this displacement.
9. hand-held indicator device according to claim 1, is characterized in that, more comprises distance measuring equipment, and this distance measuring equipment is in order to measure this distance of this main body and this reference light source, sensing result is exported to this treatment circuit.
10. hand-held indicator device according to claim 9, is characterized in that, this distance measuring equipment comprises laser distance-measuring device.
11. hand-held indicator devices according to claim 1, it is characterized in that, more comprise light-emitting device, this light-emitting device is in order to send striped light, to utilize this this reference light source of striped irradiation or the residing plane of this reference light source, make this image that this image sensing module captures comprise this striped irradiation at this reference light source or be radiated at the image of this plane, and fringe spacing in this image that this treatment circuit captures according to this image sensing module judge this main body this distance with respect to this reference light source.
The control method of 12. 1 kinds of hand-held indicator devices, is characterized in that, described hand-held indicator device comprises main body and image sensing module, this image sensing module is arranged in this main body, and in order to sensing reference light source, use the image that acquisition comprises this reference light source, this control method comprises:
Calculate the coordinate of the image that the image of this reference light source captures with respect to this image sensing module; And
Distance or variable in distance amount according to this main body and this reference light source are revised this coordinate.
13. methods according to claim 12, is characterized in that, more comprise step: the size according to the image of this reference light source judges this distance.
14. methods according to claim 13, it is characterized in that, more comprise step: whether the size that judges the image of this reference light source meets one of them of multiple different pre-set dimension, when the size of the image that judges this reference light source meets one of them pre-set dimension, or therein in the error range of a pre-set dimension, just according to this pre-set dimension, judge this distance.
15. methods according to claim 12, it is characterized in that, this hand-held indicator device more comprises acceleration transducer, and this acceleration transducer approaches this reference light source or the accekeration away from this reference light source in order to obtain this main body, and this control method more comprises:
According to this accekeration, calculate the displacement of this main body with respect to this reference light source; And
According to this displacement, calculate this distance.
16. methods according to claim 12, is characterized in that, this hand-held indicator device more comprises acceleration sensing module, and this acceleration sensing module is in order to obtain the accekeration of this main body three dimensions spatially, and this control method comprises:
When one of them accekeration is in order to represent this main body and approach this reference light source or during away from the acceleration of this reference light source, just to calculate the displacement of this main body with respect to this reference light source according to this accekeration; And
According to this displacement, calculate this distance.
17. methods according to claim 12, is characterized in that, this hand-held indicator device more comprises distance measuring equipment, and this control method more comprises:
Utilize this distance measuring equipment to measure this distance of this main body and this reference light source.
18. methods according to claim 12, it is characterized in that, this hand-held indicator device more comprises light-emitting device, this light-emitting device is in order to send striped light, to utilize this this reference light source of striped irradiation or the residing plane of this reference light source, make this image that this image sensing module captures comprise this striped irradiation at this reference light source or be radiated at the image of this plane, and this control method more comprises:
Fringe spacing in this image capturing according to this image sensing module judges this main body this distance with respect to this reference light source.
19. 1 kinds of hand-held indicator devices, is characterized in that, it comprises:
Image sensing module, in order at least one reference light source of sensing, uses the image that acquisition comprises this at least one reference light source;
Look-up table, in order to record the imaging features of this at least one reference light source and the corresponding relation of one group of Coordinate Adjusting parameter; And
Treatment circuit, is electrically connected this image sensing module, to obtain this image that comprises this at least one reference light source, and then revises coordinate according to the imaging features of this at least one reference light source and the corresponding relation of this group Coordinate Adjusting parameter.
20. hand-held indicator devices according to claim 19, is characterized in that the imaging size that this imaging features is this reference light source.
21. hand-held indicator devices according to claim 19, it is characterized in that, this image sensing module, more in order to two reference light sources of sensing, is used the imaging that acquisition comprises two reference light sources respectively, and represents this variable in distance amount according to the image-forming range of two reference light sources.
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| CN201210385568.0A CN103729092A (en) | 2012-10-12 | 2012-10-12 | Handheld pointing device and control method thereof |
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| CN201210385568.0A CN103729092A (en) | 2012-10-12 | 2012-10-12 | Handheld pointing device and control method thereof |
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Application publication date: 20140416 |