CN101376058B - Coordinate setting system and method with hanging and locating functions - Google Patents
Coordinate setting system and method with hanging and locating functions Download PDFInfo
- Publication number
- CN101376058B CN101376058B CN 200710147763 CN200710147763A CN101376058B CN 101376058 B CN101376058 B CN 101376058B CN 200710147763 CN200710147763 CN 200710147763 CN 200710147763 A CN200710147763 A CN 200710147763A CN 101376058 B CN101376058 B CN 101376058B
- Authority
- CN
- China
- Prior art keywords
- image
- light
- directionality
- light source
- order
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a coordinate positioning system with a hanging positioning function and a method thereof. The system comprises a shining device and an image sensing device, wherein the shining device is used for generating a directional light source, and the image sensing device is used for receiving the directional light source generated by the shining device and generating a image corresponding to the directional light source. An angle of rotation of the directional source is acquired through analyzing the image.
Description
Technical field
The present invention relates to the technical field of image navigation system, particularly a kind of coordinate positioning and method with unsettled positioning function.
Background technology
In the navigation system of existing game host and CRT screen, one light rifle is provided with an inductor, this inductor can receive the interior signal of regional area of light rifle indication, therefore working as the CRT screen scans to the regional area of light rifle indication, the inductor of light rifle gets final product induced signal, and adding has a timer in the light rifle, when the display frame of CRT screen is begun to scan by the upper left corner, timer just picks up counting, and has scanned reclocking again up to whole image.When the player used light rifle to aim at an aiming point, this CRT screen scanned signal and begins to scan the time that arrives this aiming point by the upper left corner, because timer record in addition, so can calculate the coordinate of this aiming point in view of the above.Yet this locate mode usually produces great error, and existing simultaneously game host is subject to traditional alternating expression picture displaying principle, and is not suitable for LCD TV, so the located in connection system need redesign.Fig. 1 is the schematic diagram of existing image navigation system 100, and it is made up of a video display 110 and an image sensor 120.This video display 110 comprise lay respectively at a plane 111 spaced at equal angles around and respectively given identification code be the light emitting diode 112,113 and 114 of " first ", " second " and " the 3rd ".This image sensor 120 comprises the photosensory assembly 121 that a CMOS is made.
These photosensory assembly 121 detectings receive the light source of described light emitting diode 112,113,114, and try to achieve the virtual coordinates 140 of these image sensor 120 indications by the coordinate of described light emitting diode 112,113,114.
The described light emitting diode 112,113 and 114 of this video display 110 can be arranged at the corner of a large-scale projection screen or LCD screen, just this plane 111 can be the imaging surface of screen, and 120 of this image sensors can allow the operator use as a projection pen or mouse.When the operator pointed to these screens with this image sensor 120, these image sensor 120 virtual coordinates 140 pointed promptly can be used as the position of the cursor that the indicated luminous point of projection pen or mouse control.And before trying to achieve this image sensor 120 virtual coordinates 140 pointed, must distinguish the identification code of the described light emitting diode 112,113,114 of identification earlier, could be according to the pairing light emitting diode coordinate of the order of identification code, come correct this image sensor 120 virtual coordinates 140 pointed of calculating.
These image sensor 120 described light emitting diodes 112,113 of detecting and the 114 reflection images that also produce just like Fig. 2.In the ordinary course of things, this image sensor 120 can begin counterclockwise to be in regular turn " first ", " second " and " the 3rd " by the identification code of the described light emitting diode 112,113,114 of the coordinate identification of described light emitting diode 112,113,114 from the bottom right.And for convenience of description, below will directly claim first light emitting diode 112, second light emitting diode 113 and the 3rd light emitting diode 114.When axis rotation 120 degree of this image sensor 120 shown in Fig. 1 arrow 150, with the reflection image that produces as Fig. 3, this moment, Fig. 3 showed identical reflection image with Fig. 2, therefore the identification code of first light emitting diode 112, second light emitting diode 113 and the 3rd light emitting diode 114 as described in directly being begun counterclockwise to distinguish in regular turn by the bottom right as the reflection image according to Fig. 3 is with situation about being misplaced.The identification code that for example is positioned at the 3rd light emitting diode 114 of reflection image bottom right this moment among Fig. 3 can be considered as " first " by mistake, and the identification code according to counter clockwise direction this first light emitting diode 112 in regular turn can be considered as " second " by mistake, and the identification code of this second light emitting diode 112 can be considered as " the 3rd " by mistake.So when this image sensor 120 had the anglec of rotation, existing navigation system also just can't correctly be tried to achieve this image sensor 120 virtual coordinates 140 pointed.
At the problems referred to above, another prior art is used at least three not conllinear, and the location primitive and an auxiliary primitive of the produced light of given different identification codes respectively, and this auxiliary primitive is positioned on the first location primitive and the second location primitive online.One image sensor receives the first location primitive, the second location primitive, the 3rd location primitive, reaches the light that auxiliary primitive produces, obtain the space coordinates of described location primitive and auxiliary primitive according to the light that receives, try to achieve the identification code of described location primitive with respect to the spatial relationship of this auxiliary primitive according to described location primitive, again according to the coordinate of the pairing location of identification code order primitive, correctly to carry out the directive property finder.Though it can avoid the problem that can't correctly try to achieve this image sensor 120 virtual coordinates 140 pointed of existing navigation system, but it need be provided with a plurality of location primitive and auxiliary primitive on display screen, not only can influence the outward appearance of display screen, also can cause some influences simultaneously the image of display screen.
Fig. 4 is the calcspar that U.S. Patent application discloses No. 20070052177 image navigation system in early days, and it has an infrared image device 56 and an image-processing circuit 76.This image-processing circuit 76 is in order to handle the selected image data of this infrared image device 56.This infrared image device 56 comprises a solid-state image assembly 561, an infrared filter 562 and lens 563.This infrared image device 56 sensings one high-brightness region, the position of centre of gravity of detecting this high-brightness region and area size, and export corresponding data.Image-processing circuit 76 should corresponding data export a processor 66 to.Acceleration sensor 68 is exported two-dimentional or three-dimensional expedited data to this processor 66.
Fig. 5 is the use schematic diagram that U.S. Patent application discloses No. 20070052177 image navigation system in early days.It is above a television set 910 led module 920A, 920B to be set.This led module of infrared image device 56 sensings 920A, 920B, the position of centre of gravity of detecting this led module 920A, 920B and area size, and export corresponding data.This image-processing circuit 76 obtains the position of centre of gravity of this led module 920A, 920B and the information of area size.Remote controller 900 is sent to a game machine 930 with the information of the position of centre of gravity of this led module 920A, 920B, area size and two dimension or three-dimensional expedited data via a wireless module 70.This game machine 930 can calculate the position of this remote controller 900 thus.Yet this navigation system need increase by one quickens inductor 68 and the increase hardware cost.Hence one can see that, and existing system and method with unsettled positioning function still has the space of improvement.
Summary of the invention
The object of the present invention is to provide a kind of coordinate positioning and method with unsettled positioning function, when avoiding image sensor to have the anglec of rotation to produce, the problem that prior art can't correctly be located.
Another object of the present invention is to provide a kind of coordinate positioning and method, destroy the problem of picture to avoid prior art on display screen, light emitting diode to be set with unsettled positioning function.
According to a characteristic of the present invention, the present invention proposes a kind of coordinate positioning with unsettled positioning function, and it comprises a light-emitting device and an Image sensor apparatus.This light-emitting device has the light source of directionality in order to generation.This Image sensor apparatus is in order to receiving the light source with directionality that this light-emitting device produces, and produces and have an image of the light source of directionality with respect to this, with by analyzing the anglec of rotation that this image obtains this light source with directionality.
According to another characteristic of the present invention, the present invention proposes a kind of coordinate location method with unsettled location, it calculates an anglec of rotation of an Image sensor apparatus and a light-emitting device, this light-emitting device in order to generation have directionality light source, this method comprises the following step: a receiving step, use this Image sensor apparatus to receive the light source with directionality that this light-emitting device is produced; One image-forming step is converted to the signal of telecommunication with this light source, produces an image that has the light source of directionality with respect to this according to this signal of telecommunication again; One image processing step is that this image is carried out second order image preliminary treatment (bi-level image pre-processing), to produce a second order image; One imaged object is chosen step, is to choose the imaged object (image object) that has the light source of directionality in this second order image with respect to this, and produces at least one imaged object; One calculation procedure is in order to a center of gravity and a direction of calculating this at least one imaged object, to produce this anglec of rotation of this light source with directionality.
Description of drawings
Fig. 1 is the schematic diagram of existing image navigation system.
Fig. 2 is the schematic diagram of existing image navigation system reflection image.
Fig. 3 is the schematic diagram of another reflection image of existing image navigation system.
Fig. 4 is the calcspar of another existing image navigation system image navigation system
Fig. 5 is the use schematic diagram of existing image navigation system.
Fig. 6 is the schematic diagram that the present invention has the system of unsettled positioning function.
Fig. 7 is the calcspar of Image sensor apparatus of the present invention.
Fig. 8 is the flow chart of the method for the unsettled location of the present invention.
Fig. 9 is the schematic diagram of the sensing image of Image sensor apparatus of the present invention.
Figure 10 is the local schematic diagram that amplifies of the sensing image of Image sensor apparatus of the present invention.
Figure 11 is the partial enlarged drawing of Figure 10.
Figure 12 calculates the schematic diagram of light-emitting device to Image sensor apparatus relative distance.
The primary clustering symbol description
First light emitting diode, 112 second light emitting diodes 113
The 3rd light emitting diode 114 photosensory assemblies 121
Light-emitting device 410 Image sensor apparatus 420
Light emitting diode 411,412
Second order image processor 521 imaged object Choosers 523
Calculator 525
Step S610～S650
The specific embodiment
Fig. 6 is the schematic diagram that the present invention has the coordinate positioning of unsettled positioning function, and this system comprises a light-emitting device 410 and an Image sensor apparatus 420.
This light-emitting device 410 has the light source of directionality in order to generation.In present embodiment, this light-emitting device 410 is made up of small one and large one 411,412 of light emitting diodes, to produce the light source that this has directionality.At other embodiment, this light-emitting device 410 is made up of the light emitting diode of a L shaped shape, to produce the light source that this has directionality.This light-emitting device 410 also can be made up of the light emitting diode of a reservation shape and the light emitting diode of a non-reservation shape, to produce the light source that this has directionality.
As shown in Figure 6, this light-emitting device 410 that can produce directional light can place the top of a display screen 430, and can not influence the image on the display screen 430.
This Image sensor apparatus 420 is in order to receiving the light source with directionality that this light-emitting device 410 is produced, and produces and have an image of the light source of directionality with respect to this, with by analyzing the anglec of rotation that this image obtains this light source with directionality.
Fig. 7 is the calcspar of this Image sensor apparatus 420, and this Image sensor apparatus 420 comprises an image sensing unit 510 and a processing unit 520.This image sensing unit 510 is in order to receiving the light source with directionality that this light-emitting device produces, and this light source is converted to the signal of telecommunication, produces this image that has the light source of directionality with respect to this according to this signal of telecommunication again.
This image sensing unit 510 is preferably CMOS image sensor (CMOS image sensor), this image sensing unit 510 also can be the charge coupled device image sensor (Charge Couple Device, CCD).
This processing unit 520 is connected to this image sensing unit 510, so that this image is carried out second order image preliminary treatment (bi-level image pre-processing), to produce a second order image, and choose the imaged object (image object) that has the light source of directionality in this second order image with respect to this, again according to this imaged object to produce this anglec of rotation of this light source with directionality.
This processing unit 520 comprises a second order image processor 521, an imaged object Chooser 523 and a calculator 525.This second order image processor 521 is connected to this image sensing unit 510, so that this image is carried out the second order image preliminary treatment, to produce this second order image.
This imaged object Chooser 523 is connected to this second order image processor 521, choosing the imaged object that has the light source of directionality in this second order image with respect to this, and produces at least one imaged object.This calculator 525 is connected to this imaged object Chooser 523, with a center of gravity and a direction of calculating this at least one imaged object, to produce this anglec of rotation θ of this light source with directionality.
This calculator 525 is according to this direction and a default vector
To produce this anglec of rotation of this light source with directionality.Wherein, this anglec of rotation θ is:
In the middle of,
Be the vector of this direction,
Be this default vector,
Be vector length,
For default vector length, be inner product (inner product).
Fig. 8 is the flow chart of the method for the unsettled location of the present invention, and it calculates an anglec of rotation of an Image sensor apparatus 420 and a light-emitting device 410, and this light-emitting device 410 has the light source of directionality in order to generation.At first, in step S610, use this Image sensor apparatus 420, in order to receive the light source that this light-emitting device 410 is produced with directionality.
In step S620, this light source is converted to the signal of telecommunication, produce an image that has the light source of directionality with respect to this according to this signal of telecommunication again.When the axis of this Image sensor apparatus 420 shown in Fig. 6 arrow 440 was rotated counterclockwise θ and spends, this image then as shown in Figure 9.The image of two these light emitting diodes 411,412 of white portion among Fig. 9.Figure 10 is the schematic diagram of the magnified image of this light emitting diode 411,412 among Fig. 9.In Figure 10, the sensor pixel of this Image sensor apparatus 420 detects this light emitting diode 411,412 light sources that produced, and then is rendered as white pixel, does not detect this light emitting diode 411,412 light sources that produced, and then is rendered as black picture element.Wherein, its GTG value of white pixel is approximately greater than 200, and its GTG value of black picture element is approximately less than 50.
In step S630, this image is carried out the second order image preliminary treatment, to produce a second order image.Its following pseudo-code of foundation (pseudo code) is to produce this second order image:
if(pix_value＞150)
then?pix_value＝255
elseif(pix_value＜70)
then?pix_value＝0
endif
，
Pix_value represent pixel value wherein, that is, when a pixel value greater than 150 the time, this pixel value is set at 255, when a pixel value less than 75 the time, this pixel value is set at 0, produce this second order image thus.
In step S640, choose the imaged object (image object) that has the light source of directionality in this second order image with respect to this, and produce at least one imaged object.In step S640, mainly choose the imaged object of this light emitting diode 411,412.Each imaged object comprises a minimum rectangle, imaged object central point and imaged object area.This minimum rectangle can comprise the minimum rectangle of the image of this light emitting diode 411,412.In the present embodiment, can utilize this imaged object area with judge which be big light emitting diode 411 imaged object, which is the imaged object of little light emitting diode 412.
In step S650, calculate a direction of this at least one imaged object, to produce this anglec of rotation θ of this light source with directionality.In the present embodiment, it is the imaged object central point that utilizes big light emitting diode 411 for the imaged object central point of starting point, little light emitting diode 412 produces this direction for terminal point, again according to this direction and a default vector
To produce this anglec of rotation θ of this light source with directionality.Should default vector
The horizontal line of these Image sensor apparatus 420 sensing images.That is this anglec of rotation θ is:
In the middle of,
Be the vector of this direction,
Be this default vector,
Be vector length,
For default vector length, be inner product (inner product).
The present invention is decided to be terminal point with the imaged object central point that the imaged object central point of big light emitting diode is decided to be starting point, little light emitting diode, and then produce this direction, and the central point that can utilize this starting point and terminal point as a core point with usefulness as the location.The technology of the present invention can utilize this Image sensor apparatus 420 anglec of rotation θ, core point position, and this starting point and terminal point calculate last absolute addressing coordinate apart from the three, the technology of the present invention utilize triangle telemetry with the distance transform of this starting point and terminal point for this light-emitting device 410 to these Image sensor apparatus 420 relative distances.Figure 11 is the partial enlarged drawing of Figure 10.By the vector of direction as can be known among the figure
Length
For
Individual pixel distance.Figure 12 calculates the schematic diagram of this light-emitting device 410 to these Image sensor apparatus 420 relative distances.Wherein, vector
Be the vector of measuring this Image sensor apparatus 420 and this light-emitting device 410 in advance, the imaged object central point of its big light emitting diode that to be this Image sensor apparatus 420 choose with 410 1 meters places of this light-emitting device is that the imaged object central point of starting point, little light emitting diode is the vector of terminal point.If vector
Length be M pixel, big light emitting diode 411 is a L rice with the distance of little light emitting diode 412 because Δ ADE～Δ AFG, so
Therefore
Because Δ ADE～Δ ABC, so
Therefore
So this Image sensor apparatus 420 is X+1=(Y-Z)+1 apart from this light-emitting device 410.This is the application of triangle telemetry, has the knack of this operator and can finish easily according to the description of specification of the present invention, does not repeat them here.
In the previous embodiment, this light-emitting device 410 that can produce directional light is made up of small one and large one 411,412 of light emitting diodes, to produce the light source that this has directionality.At other embodiment, this light-emitting device 410 is made up of the light emitting diode of a L shaped shape, to produce the light source that this has directionality.This light-emitting device 410 also can be made up of the light emitting diode of a reservation shape and the light emitting diode of a non-reservation shape, to produce the light source that this has directionality.And corresponding second order image treatment step, imaged object choose step, and calculation procedure be to have the knack of this operator to finish easily according to the description of specification of the present invention, be not described in detail in this.
By previous description as can be known, prior art need be used the light source more than at least 3 and need be placed in display screen 430, and the anglec of rotation and the elements of a fix of Image sensor apparatus 420 with respect to display screen 430 can be provided.This not only can influence the outward appearance of display screen 430, also can interfere with the content of display screen 430 film of playing.And the technology of the present invention can be used still less light source than prior art, can allow Image sensor apparatus 420 calculate the anglec of rotation and the elements of a fix with respect to display screen 430.
Simultaneously, prior art need be used 2 light sources and cooperate acceleration sensor, and for example G-Sensor can reach the function of locating absolute coordinate.The technology of the present invention need not be used acceleration sensor, only needs to use the light-emitting device 410 that can produce directional light, and the relevant position of luminous point and area size shape then can produce a new sensing coordinate and a relative distance by analysis.
In sum, technology of the present invention is the light-emitting device utilization Image sensor apparatus of the produced directional light of a display screen 430 tops to be read the image of this light-emitting device, the relevant position of luminous point and area size shape produce a new sensing coordinate and a relative distance by analysis.The technology of the present invention can be used as the input of remote controller or wireless mouse, in order to the position and the specific action of control screen.When the technology of the present invention applied to remote controller, the technology of the present invention can solve remote controller can't effectively locate the problem of absolute coordinate to LCD Panel, and can provide remote controller to effective informations such as LCD Panel relative distances.
The foregoing description is only given an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (17)
1. the coordinate positioning with unsettled positioning function is applicable to liquid crystal display, and it comprises:
One light-emitting device, the light source that has directionality in order to generation; And
One Image sensor apparatus, produce the light source that this has directionality in order to choose this light-emitting device, and produce the corresponding image of this light source with directionality, in order to pass through to analyze this image, and then obtain the corresponding anglec of rotation of this light source with directionality, wherein, this Image sensor apparatus comprises:
One image sensing unit has the light source of directionality in order to this that receives that this light-emitting device produces, and is converted into a signal of telecommunication, produces this image that has the light source of directionality with respect to this according to this signal of telecommunication again; And
One processing unit, be connected to this image sensing unit, so that this image is carried out the second order image preliminary treatment, and then produce a second order image, and choose the imaged object that has the light source of directionality in this second order image with respect to this, again according to this imaged object, in order to produce this anglec of rotation of this light source with directionality.
2. system according to claim 1, wherein, this processing unit comprises:
A second order image processor is connected to this image sensing unit, handles so that this image is carried out second order image, and then produces this second order image;
One imaged object Chooser is connected to this second order image processor, choosing this imaged object that has the light source of directionality in this second order image with respect to this, and produces at least one imaged object; And
One calculator is connected to this imaged object Chooser, calculating the direction of this at least one imaged object, and then produces this anglec of rotation of this light source with directionality.
3. system according to claim 2, wherein, this calculator is according to this direction and a default vector, to produce this anglec of rotation of this light source with directionality.
4. system according to claim 3, wherein, this anglec of rotation is θ, wherein θ is:
In the middle of,
Be the vector of this direction,
Be this default vector,
Be vector length,
For default vector length, be inner product.
5. system according to claim 1, wherein, this image sensing unit is a CMOS image sensor.
6. system according to claim 5, wherein, this light-emitting device is made up of a big light-emitting diodes and a little light emitting diode, and then produces the light source that this has directionality.
7. system according to claim 6 wherein, is decided to be a starting point with the imaged object central point of this big light-emitting diodes and imaged object central point that will this little light emitting diode is a terminal point, and then produces the vector of this direction
8. system according to claim 5, wherein, this light-emitting device is made up of the light emitting diode of a L shaped shape, to produce the light source that this has directionality.
9. system according to claim 5, wherein, this light-emitting device is made up of the light emitting diode of a reservation shape and the light emitting diode of a non-reservation shape, to produce the light source that this has directionality.
10. the coordinate location method with unsettled location is applicable to liquid crystal display, in order to calculating an anglec of rotation of an Image sensor apparatus and a light-emitting device, this light-emitting device in order to generation have directionality light source, this method comprises the following step:
One receiving step uses this Image sensor apparatus to have the light source of directionality with this that receives that this light-emitting device produced;
One image-forming step, and this light source with directionality is converted to the signal of telecommunication, produce an image that has the light source of directionality with respect to this according to this signal of telecommunication again;
One image processing step is carried out the second order image preliminary treatment to this image, and then is produced a second order image;
One imaged object is chosen step, chooses the imaged object that has the light source of directionality in this second order image with respect to this, and produces at least one imaged object; And
One calculation procedure is calculated the direction of this at least one imaged object, and then produces this anglec of rotation of this light source with directionality.
11. method according to claim 10, wherein, this calculation procedure is according to this direction and a default vector, to produce this anglec of rotation of this light source with directionality.
12. method according to claim 11, wherein, this anglec of rotation is θ, and wherein θ is:
In the middle of,
Be the vector of this direction,
Be this default vector,
Be vector length,
For default vector length, be inner product.
13. method according to claim 10, wherein, this image sensing unit is a CMOS image sensor.
14. method according to claim 11, wherein, this light-emitting device is made up of a big light-emitting diodes and a little light emitting diode, to produce the light source that this has directionality.
15. method according to claim 14 wherein, is decided to be that a starting point and imaged object central point that will this little light emitting diode are decided to be a terminal point and the vector that produces this direction with the imaged object central point of this big light-emitting diodes
16. method according to claim 11, wherein, this light-emitting device is made up of the light emitting diode of a L shaped shape, to produce the light source that this has directionality.
17. method according to claim 11, wherein, this light-emitting device is made up of the light emitting diode of a reservation shape and the light emitting diode of a non-reservation shape, to produce the light source that this has directionality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710147763 CN101376058B (en) | 2007-08-28 | 2007-08-28 | Coordinate setting system and method with hanging and locating functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710147763 CN101376058B (en) | 2007-08-28 | 2007-08-28 | Coordinate setting system and method with hanging and locating functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101376058A CN101376058A (en) | 2009-03-04 |
| CN101376058B true CN101376058B (en) | 2011-11-02 |
Family
ID=40419903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710147763 Expired - Fee Related CN101376058B (en) | 2007-08-28 | 2007-08-28 | Coordinate setting system and method with hanging and locating functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101376058B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968896A (en) * | 2011-08-29 | 2013-03-13 | 奇高电子股份有限公司 | Optical remote-control system and light source control method used for optical remote-control system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621324A (en) * | 2016-12-30 | 2017-05-10 | 当家移动绿色互联网技术集团有限公司 | Interactive operation method of VR game |
| CN111735487B (en) * | 2020-05-18 | 2023-01-10 | 清华大学深圳国际研究生院 | Sensor, sensor calibration method and device, and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498860B1 (en) * | 1998-06-01 | 2002-12-24 | Sony Computer Entertainment, Inc. | Input position detection device and entertainment system using the same |
-
2007
- 2007-08-28 CN CN 200710147763 patent/CN101376058B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6498860B1 (en) * | 1998-06-01 | 2002-12-24 | Sony Computer Entertainment, Inc. | Input position detection device and entertainment system using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102968896A (en) * | 2011-08-29 | 2013-03-13 | 奇高电子股份有限公司 | Optical remote-control system and light source control method used for optical remote-control system |
| CN102968896B (en) * | 2011-08-29 | 2015-07-22 | 奇高电子股份有限公司 | Optical remote-control system and light source control method used for optical remote-control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101376058A (en) | 2009-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI547828B (en) | Calibration of sensors and projector | |
| CN101472095B (en) | Cursor control method and device using the method | |
| TWI419081B (en) | Method and system for providing augmented reality based on marker tracing, and computer program product thereof | |
| AU2011202555B2 (en) | Multi-view alignment based on fixed-scale ground plane rectification | |
| JP3950837B2 (en) | Projector, electronic blackboard system using projector, and indication position acquisition method | |
| US20060050152A1 (en) | Method for digital image stitching and apparatus for performing the same | |
| US20150369593A1 (en) | Orthographic image capture system | |
| CN100590577C (en) | Touch screen positioning device and method thereof | |
| US20100232681A1 (en) | Three-dimensional vision sensor | |
| US8179448B2 (en) | Auto depth field capturing system and method thereof | |
| US20150170399A1 (en) | Method and apparatus for calibrating a three-dimensional (3d) image in a tiled display | |
| CN109544628B (en) | Accurate reading identification system and method for pointer instrument | |
| CN104254869A (en) | A method and system for projecting a visible representation of infrared radiation | |
| CN101639747A (en) | Spatial three-dimensional positioning method | |
| CN101520700A (en) | Camera-based three-dimensional positioning touch device and positioning method thereof | |
| US20020136455A1 (en) | System and method for robust foreground and background image data separation for location of objects in front of a controllable display within a camera view | |
| CN101169831A (en) | Pointer positioning device and method | |
| US20220366658A1 (en) | Systems and methods of augmented reality guided image capture | |
| CN109974659A (en) | A kind of embedded range-measurement system based on binocular machine vision | |
| CN101376058B (en) | Coordinate setting system and method with hanging and locating functions | |
| CN101196986A (en) | Three-dimensional palm print identity identifier and its identification method | |
| CN107113417A (en) | Project image onto on object | |
| US8159459B2 (en) | Coordinate positioning system and method with in-the-air positioning function | |
| CN106464823A (en) | Method and apparatus for interacting with display screen | |
| CN101452348B (en) | Coordinate setting mouse with float locate function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20160828 |