CN101377915A - Control apparatus and control method for image display - Google Patents

Abstract

The invention discloses a control device that is used for controlling an image display, and the control device comprises at least one reference point that is used for generating a preset spectral signal, a modulating unit that is used for modulating the preset spectral signal in a preset way, and a remote control device, wherein, the remote control device comprises an image sensor and a processing unit, the image sensor is used for receiving the modulated preset spectral signal and generating a digital signal, the processing unit is used for receiving the digital signal and modulating the digital signal so as to form a digital image that only has an image of the reference point and compute the image change of the image that is generated on the digital image by the reference point; furthermore, the remote control device relatively controls the image display according to the image change, thus removing the interference of other optical sources which generate spectra that is overlapped with the spectrum of the preset spectral signal. The invention further provides a control method of the image display.

Description

The control device of image display and control method

Technical field

The present invention relates to a kind of control device and control method of image display, it utilizes at least one reference point to produce modulated default spectral signal, and behind the described default spectral signal of image taking sensor sensing, calculate the image change of described reference point on described imageing sensor and control described image display in view of the above.

Background technology

A kind of existing control method of cursor is 200540687 TaiWan, China patent " control method of cursor and device " as publication number, and it discloses a kind of method of using handheld apparatus to carry out vernier control.At first, described handheld apparatus utilizes the optical devices monitoring to move.Then, according to mobile computing alternate position spike that it monitored.Then, described hand-held device wirelessly is sent to specific device with described alternate position spike, thereby the described alternate position spike of foundation is controlled the vernier activity on the described specific device, and according to the application program on the described specific device of described vernier activity operations.Yet, in actual use, when utilizing described optical devices sensing image zone, optical devices and be ingested camera distance between object and the anglec of rotation during the optical devices shooting all can influence the position of obtained image on the sensing array are not if proofread and correct the situation that the control of vernier mistake then can not take place simultaneously.In addition, the image that described optical devices are monitored is because of all objects in the angular field of view that comprises described optical devices, so also comparatively complicated on image identification.

In order to solve above-mentioned existing in prior technology problem, TaiWan, China patented claim 095116011 by " indicator positioning device and method " by name that the applicant held jointly, and disclose by setting at least one reference point in the TaiWan, China patented claim 0951149408 of by name " control method of cursor and use the device of described method " with generation infrared spectroscopy signals (wavelength is about 940 nanometers), and the infrared light light filter is set on imageing sensor with the light signal beyond the described infrared spectrum of filtering, thus, described imageing sensor only can sensing the infrared spectroscopy signals that produces of described reference point, thereby simplified the complexity of image discriminating; And according to the image change of the described reference point of described imageing sensor institute sensing, image display device is controlled in for example displacement.Yet, though described imageing sensor can not be interfered under the environment of general indoor daylight lamp (wavelength is the 350-750 nanometer), but if the indoor halogen light source that has is when (wavelength is about the 350-1100 nanometer), then can be subjected to the influence of described halogen light source, when particularly described halogen light source is positioned near the described reference point, described imageing sensor will comprise described reference point and described halogen light source by the accessed image of infrared light light filter, so will cause the rear end image processor to produce erroneous judgement, thereby can't correctly control described image display device.In addition, for described control device, sunshine also is a kind of jamming light source.

For these reasons, be necessary really further to improve the control device of above-mentioned existing image display, so that increase the correctness of controlling of described control device.

Summary of the invention

The control device and the control method that the purpose of this invention is to provide a kind of image display, described control device produces modulated default spectrum by at least one reference point, utilize telechiric device to monitor described modulated default spectral signal and control image display with this, because described telechiric device can be got rid of the interference of environment light source, thereby can increase the correctness of controlling of image display.

For reaching above-mentioned purpose, the invention provides a kind of control device that is used to control image display, comprising: at least one is used to produce the reference point of default spectral signal; Modulate the modulating unit of described default spectral signal with predetermined manner; And telechiric device, described telechiric device comprises: imageing sensor, described imageing sensor receive modulated default spectral signal, and produce digital signal; And processing unit, described processing unit receiving digital signals, the described digital signal of rectification to be to form digital picture, makes described digital picture only have described reference point image and calculate described reference point becomes image on described digital picture image change; Wherein, described telechiric device is controlled described image display relatively according to described image change, gets rid of other interference of light sources with this, and described other light source produces the equitant spectrum of frequency spectrum with described default spectral signal.

The present invention also provides a kind of control method in order to the control image display, comprises the following steps: to provide at least one reference point so that produce default spectral signal; Modulate described default spectral signal with predetermined manner; Provide imageing sensor in order to receiving modulated default spectral signal, and produce digital signal; The described digital signal of rectification only has described reference point image to form digital picture in the wherein said digital picture; And the described reference point of calculating becomes the image change of image on described digital picture; Control described image display relatively according to described image change; Get rid of other interference of light sources with this, described other light source produces the equitant spectrum of frequency spectrum with described default spectral signal.

The control device of image display of the present invention and control method can be applicable to the control of various image displays, for example: the screen of computer screen, game host, projector screen, monitor and TV etc.In one embodiment of the invention, described control device and method can be set and adjust with the functional status that carries out image display in order to control chart as the moving of the vernier on the control interface of display.In another embodiment of the present invention, can control the functional status of described image display relatively with the spinning movement of analogue simulation knob by the telechiric device of rotating control assembly.In addition, described TV can be CRT monitor, LCD or plasma display etc.

Description of drawings

Fig. 1 has shown the synoptic diagram of first embodiment of the control device of image display provided by the invention;

Fig. 2 a has shown the synoptic diagram of imageing sensor provided by the invention institute sensing image, and wherein said control device uses described modulating unit to modulate described default spectrum, thereby gets rid of the influence of environment light source;

Fig. 2 b has shown the synoptic diagram of imageing sensor provided by the invention institute sensing image, does not wherein use described modulating unit to modulate described default spectrum thereby can't get rid of the influence of environment light source;

Fig. 3 has shown the synoptic diagram of second embodiment of the control device of image display provided by the invention;

Fig. 4 has shown and utilizes the control device of described image display to control the process flow diagram that the vernier on the described image display moves in the embodiment of the invention;

When shooting, the turn clockwise digital picture of an angle time institute sensing of the imageing sensor that Fig. 5 a has shown telechiric device described in the embodiment of the invention;

The imageing sensor that Fig. 5 b has shown telechiric device described in embodiment of the invention dextrorotation gyration when shooting is spent the digital picture of time institute's sensing greater than 180;

The imageing sensor that Fig. 6 has shown telechiric device described in the embodiment of the invention is in the make a video recording digital picture of time institute's sensing of different distance;

Fig. 7 has shown that the imageing sensor of telechiric device described in the embodiment of the invention points to the digital picture that time institute's sensing is moved in the position;

Fig. 8 has shown that the control device that utilizes described image display in the embodiment of the invention controls the process flow diagram of the functional status of described image display;

Fig. 9 a has shown among the present invention the synoptic diagram in order to a kind of embodiment of the anglec of rotation of calculating described telechiric device;

Fig. 9 b has shown among the present invention the synoptic diagram in order to the another kind of embodiment of the anglec of rotation of calculating described telechiric device;

Figure 10 a has shown the synoptic diagram of the imageing sensor institute pickup image of telechiric device described in the embodiment of the invention, and wherein said telechiric device is not rotation in use;

Figure 10 b has shown another synoptic diagram of the imageing sensor institute pickup image of telechiric device described in the embodiment of the invention, wherein said telechiric device turn clockwise in use 30 the degree;

Figure 10 c has shown another synoptic diagram of the imageing sensor institute pickup image of telechiric device described in the embodiment of the invention, wherein said telechiric device turn clockwise in use 60 the degree;

Figure 10 d has shown another synoptic diagram of the imageing sensor institute pickup image of telechiric device described in the embodiment of the invention, and wherein said telechiric device dextrorotation in use turn 90 degrees;

Figure 10 e has shown another synoptic diagram of the imageing sensor institute pickup image of telechiric device described in the embodiment of the invention, wherein said telechiric device turn clockwise in use 120 the degree.

Description of reference numerals

100 image display control device, 10 image displays

102 display screens, 104 verniers

12,14 reference point, 16 modulating units

20 telechiric devices, 22 light filters

24 imageing sensors, 26 processing units

28 wireless transmission unit, 30 light sources

DS digital signal S control signal

But 200 image display control device A sensing ranges

i ₁₂, i ₁₄Reference point sensing image I ₁₂, I ₁₄The reference point sensing image

I ₃₀Light source sensing image I ₁₂', I ₁₄' reference point sensing image

I ₁₂", I ₁₄" reference point sensing image I ₁₂" ', I ₁₄" ' reference point sensing image

L, l reference point image pitch are from the θ anglec of rotation

(X, Y) reference point image averaging coordinate

(X _i, Y _i) reference point image averaging coordinate

(X ', Y ') reference point image averaging coordinate

(X ₁₂', Y ₁₂') the reference point image coordinate

(X ₁₄', Y ₁₄') the reference point image coordinate

(X ₁₂, Y ₁₂) the reference point image coordinate

(X ₁₄, Y ₁₄) reference point image coordinate X _Scale, Y _ScaleScale parameter

Δ S reference point image displacement Δ S _XMove horizontally distance

Δ S _YThe vertical moving distance

(X ₀, Y ₀) reference point image averaging coordinate when predeterminable range is made a video recording

D, the d reference point is online with the distance at sensing array center

150～720 steps 1100～1610 steps

Embodiment

In order to allow above and other objects of the present invention, feature and the advantage can be more obvious, the embodiment of the invention cited below particularly, and cooperate appended diagram, be described in detail below.In addition, in the description of this instructions, similarly assembly is to represent with identical Reference numeral.

With reference to shown in Figure 1, it has shown first kind of embodiment according to the control device 100 of image display 10 of the present invention, described control device 100 comprises image display 10, and described image display 10 has display screen 102, two reference point 12,14, modulating unit 16 and the telechiric device 20 in order to the display image picture.The embodiment of described image display 10 comprises screen, projection screen, computer screen, monitor or other any device in order to display image of TV, game host.Described image display 10 can be controlled its functional status setting and adjust for example volume adjustment, channel selection, color setting, audio setting etc. via user interface (user interface); Described setting and adjustment can be controlled by control panel (not drawing) or telechiric device via the vernier on the display screen 102 104.

Described reference point 12,14 can be sent default spectral signal, a kind of embodiment of reference point 12,14 rearranges for utilizing infrarede emitting diode (IR LED), for example can send the light emitting diode that wavelength is about the spectral signal of 940 nanometers (nm), utilize the different arrangement of infrarede emitting diode can form difform reference point 12 and 14, for example be that 3 infrarede emitting diodes are formed a line to form the reference point of two strips in this embodiment, can form the reference point of two different area or the reference point of a strip and a point-like in other embodiments.Described modulating unit 16 is coupled to described reference point 12 and 14, the default spectral signal that described modulating unit 16 utilizes predetermined manner modulation reference point 12,14 to be sent, for example utilize periodic modulation (periodic modulation), described modulating unit 16 has default modulating frequency, for example in one embodiment, described default modulating frequency is 20 hertz, and in order to modulate the default spectrum that two reference point 12,14 are produced simultaneously.In another kind of embodiment, reference point 12 and 14 spectral signals that sent can also adopt different default modulating frequencies to be modulated.Should be noted that, if with the default modulating frequency of the difference default spectral signal that produced of modulation reference point 12 and 14 respectively, be preferably and become the multiple relation between two default modulating frequencies, so that can be synchronous between two reference point 12 and the 14 default spectrum that sent, for example as if the default spectral signal that is sent with 20 hertz of modulation reference points 12, and during the spectral signal that is produced with 40 hertz of modulation reference points 14, reference point 14 is lighted once in per 25 milliseconds (ms), and reference point 12 is lighted once in per 50 milliseconds, that is reference point 14 is whenever lighted twice o'clock reference point 12 and is lighted once, and be preferably and light simultaneously, also can adopt the opposite default modulating frequency default spectrum that produced of modulation reference point 12 and 14 respectively in addition to form synchronously.In other embodiment, also can utilize the mode of modulation non-periodic (non-periodic modulation) to be implemented, so that the difference of the default spectrum that reference point 12 and 14 is sent and surrounding environment light signal, when particularly part or all of and described default spectral hand is overlapping when the frequency band of spectral signal that described light source sends.In addition, reference point 12,14 and modulating unit 16 can be integrated in the image display 10, or be arranged in addition a stand-alone assembly and in operation the time be positioned over described image display 10 near.

Telechiric device 20 comprises light filter 22, imageing sensor 24, processing unit 26 and wireless transmission unit 28.Described telechiric device 20 is to utilize described imageing sensor 24 to receive the default spectral signal of reference point 12,14 to form digital picture, and according to the image change of reference point 12,14 on digital picture, for example change in location or angle change, control described image display 10 according to this relatively, its detailed content will be described in the following passage.For example if described image display 10 is a TV, 20 of described telechiric devices are that TV remote controller is to carry out general TV remote; If described image display 10 is the display screen of game machine, the control that then can utilize described telechiric device 20 to play.If described image display 10 is a projection screen, 20 of described telechiric devices can be mouse to control the action of application software on the described projection screen.Must be appreciated that the kind of aforementioned display device and control mode thereof are a kind of embodiment only, be not in order to restriction the present invention, can carry out any control in other embodiment on the display of other kind.Described wireless transmission unit 28 is subject to processing the control of unit 26, and send control signal S to image display 10 with its action of relative control.

Shown in Fig. 1,2a and 2b, first embodiment of the invention is when practical operation, for illustrative purposes, suppose near the image display 10 and in the angular field of view of imageing sensor 24, have a light source 30 that can send light signal, the frequency band part of its frequency band and reference point 12,14 spectral signals that sent or overlapping fully, for example Halogen lamp LED or sunshine light source.At first, reference point 12,14 is accepted the concurrent default spectral signal of providing described default modulating frequency of periodic modulation of modulating unit 16, in order to make imageing sensor 24 can obtain described default spectrum picture, described default modulating frequency is preferably the image sampling frequency that is lower than imageing sensor 24, and described image sampling frequency is the figure number that imageing sensor 24 per seconds are taken a sample.Described image sampling frequency be preferably with described default modulating frequency between become multiple relation so that the sampling of described image and reference point 12,14 light form synchronous.For example in a kind of embodiment, the image sampling frequency of described imageing sensor 24 is 200 hertz (per 5 milliseconds of samplings once), the default modulating frequency of reference point 12,14 is 20 hertz (lighting once for per 50 milliseconds), when imageing sensor 24 whenever is sampled to the 10th time, reference point 12,14 is all lighted, so that imageing sensor 24 successfully obtains the default spectral signal that reference point 12,14 is produced.

Then, image display 24 receives the default spectral signal of reference point 12,14 by described light filter 22, but because the spectrum signal beyond the described default spectrum of described light filter 22 filterings, thereby imageing sensor 24 only can receive the image of reference point 12,14 and light source 30, and produces digital signal DS; Behind the processing unit 26 receiving digital signals DS, then control image display 10 relatively according to the image change of reference point 12,14, because processing unit 26 is to control image display 10 according to the image change of calculating reference point 12,14, therefore if comprise the signal of described light source 30 in the computation process, situation that then can wrong control takes place.Described processing unit 26 must the described digital signal DS of rectification in, through the signal of aforementioned default modulating frequency modulation, and produce digital picture, and described digital picture only comprises the image of reference point 12,14, shown in Fig. 2 a, I wherein ₁₂And I ₁₄The image of representing reference point 12,14 respectively; At last, described processing unit 26 calculating reference point I ₁₂And I ₁₄Image change after, wireless transmission unit 28 emissioning controling signal S are to image display 10, with relative control image display 10 in control.Thus, can get rid of in the environment other light source, to increase the control correctness for the interference of image display control device 100.Otherwise if described control system does not have the mechanism of modulation and rectification, then described digital picture can comprise the image of reference point 12,14 and light source 30, that is comprises I ₁₂, I ₁₄And I ₃₀, shown in Fig. 2 b.

With reference to shown in Figure 3, it shows second embodiment according to the control device 200 of image display of the present invention, wherein telechiric device 20 is electrically connected on image display 10, control the adjustment and the setting of image display 10 thus relatively, for example, in the game machine system, telechiric device is electrically connected on display screen, thereby controls the carrying out of recreation relatively.The control device 200 of described image display comprises image display 10, reference point 12,14, modulating unit 16, telechiric device 20 equally, described control device 200 is to utilize default spectral signal that telechiric device 20 sent by imageing sensor 24 picked-up reference point 12,14 to form digital signal DS equally, processing unit 26 is controlled image display 10 relatively according to the image change of reference point 12,14 on described digital picture after forming digital picture according to digital signal DS; 16 default spectral signals that sent in order to modulation reference point 12,14 of modulating unit, thus make the described digital signal DS of described processing unit 26 rectification form the influence that digital picture is got rid of environment light source.Must it should be noted that, do explanation though in the embodiment of the invention, be to use two reference point 12,14, but the present invention also can only use the reference frame of a reference point as image identification not as limit in other embodiment, perhaps only modulate one of them of two reference point.Below explanation control device 100,200 is according to the image change of reference point 12,14 image that generates on described digital picture, and for example change in location or angle change, so that control two kinds of embodiment of image display 10 relatively.

With reference to shown in Fig. 4 to 7, in one embodiment, described control device 100 or 200 can be in order to control chart moving as the vernier 104 on the screen 102 of display 10, and this moment reference point the 12, the 14th, with neither with area but identical shaped reference point represent, for example reference point 12 is to represent with the large tracts of land asterisk, be presented on the described digital picture then for I ₁₂Reference point 14 is to represent with the small size asterisk, be presented on the described digital picture then for I ₁₄Described control method of cursor comprises the following steps: to provide two reference point producing modulated default spectrum, and defines the preset range (step 150) of surrounding reference point; The imageing sensor (step 250) that points in the described preset range is provided; Utilize described imageing sensor to receive described default spectrum and form digital picture (step 300); Judge the image space and the shape of the reference point on the described digital picture, and produce first parameter (step 400); Carry out distance and angle compensation (step 500) at described first parameter; In described preset range, move the sensing position of described imageing sensor, and produce second parameter (step 600); And according to described first parameter after the compensation and the displacement of the reference point image space on the described digital picture of second calculation of parameter with move (step 700) relative to the described vernier of control.Wherein, in step 700, to carry out distance and angle compensation (step 710) at described second parameter simultaneously and can select to import the sensitivity that scale parameter (step 720) moves with control vernier 104, wherein, step 720 may be selected to be in different application to be implemented or does not implement.

Refer again to Fig. 1,4 and 5a shown in, described control device 100 or 200 is before dispatching from the factory, be preferably in advance and be preset to image position parameter and default image-forming range parameter prior to being set with in the processing unit 26, when described parameter can be telechiric device 20 distance reference points 12,14 predeterminable ranges (for example 3 meters), the preset reference dot image I of the reference point of being obtained according to described imageing sensor 24 12,14 ₁₂And I ₁₄The parameter preset of being tried to achieve is with as distance and the benchmark during angle compensation, shown in Fig. 5 a.According to the formed plane space coordinate of the sensing array of described imageing sensor 24, for example the center "+" with the induction array is the formed planimetric coordinates of initial point, described image position parameter and the default image-forming range parameter of being preset to of definable.For example: the described image position parameter that is preset to can comprise in the described plane space coordinate, reference point 12 and the 14 default image I that form ₁₂And I ₁₄Coordinate, its average coordinates (X ₀, Y ₀) and described two default image I ₁₂And I ₁₄Online angle of inclination; Described default image-forming range parameter can comprise reference point 12 and 14 and form default image I ₁₂And I ₁₄Between distance L and average coordinates (X thereof ₀, Y ₀) with the distance D of described central point "+".

At first make reference point 12,14 produce the signal of default spectrum, it for example in the present invention the infrared light spectrum signal, like this according to the angular field of view of described imageing sensor 24 and the lighting angle of reference point 12,14, but sensing range " A " (step 150) can around reference point 12,14, be determined; Then, but the imageing sensor 24 with telechiric device 20 points to described sensing range " A " scope interior any one (step 250), since imageing sensor 24 used in the present invention be only can the described default spectrum of sensing imageing sensor, and because the default spectrum that reference point 12,14 is produced is modulated through modulating unit 16, therefore described processing unit 26 only forms the digital picture (step 300) with reference point 12,14, the I shown in Fig. 5 a ₁₂' and I ₁₄', and when hypothesis utilizes telechiric device 20 to obtain described digital picture in present embodiment, telechiric device 20 is along clockwise direction anglec of rotation θ, thus the imaging I of reference point ₁₂' and I ₁₄' reference point the image I taken the photograph in aforementioned predeterminable range with imageing sensor 24 ₁₂And I ₁₄Between can produce the deviation of anglec of rotation θ relatively, therefore cause the reference point image I ₁₂' and I ₁₄' average coordinates (X Y) is different from preset reference dot image I ₁₂And I ₁₄Average coordinates (X ₀, Y ₀), though imageing sensor 24 points to same positions at this moment.

Shown in Fig. 1,4,5a and 5b, described processing unit 26 is judged the reference point image I ₁₂' and I ₁₄' position and shape, and produce first parameter, described first parameter comprises: the first image space parameter, the first image-forming range parameter and imaging form parameter (step 400).26 of processing units are according to the first image space parameter (reference point image I for example ₁₂' and I ₁₄' average coordinates and online angle of inclination) with described image position parameter (the preset reference dot image I for example that is preset to ₁₂And I ₁₄And online angle of inclination) the angular deviation θ between carries out angle compensation (step 500), and the mode of its compensation is represented with (1) formula:

$\left[\begin{array}{c}X\′\\ Y\′\end{array}\right]=\left[\begin{array}{cc}\cos \left(\mathrm{\θ}\right)& -\sin \left(\mathrm{\θ}\right)\\ \sin \left(\mathrm{\θ}\right)& \cos \left(\mathrm{\θ}\right)\end{array}\right]\left[\begin{array}{c}X\\ Y\end{array}\right]---\left(1\right)$

Wherein, θ represents described first image space parameter and the described anglec of rotation deviation that is preset between the parameter of image position; X, Y represent the average coordinates of the preceding described first image space parameter of angle compensation; The average coordinates of X ', Y ' (not drawing) expression compensation back reference point image space parameter.Therefore, the image of the image that reference point 12,14 after compensation is generated under same benchmark, being tried to achieve, when the described image display 10 same distances of user's distance were made a video recording, described imageing sensor 24 all can obtain identical result when any anglec of rotation is operated in view of the above.

But, if described misalignment angle θ forms the reference point image I greater than 180 degree ₁₂" and I ₁₄" time, shown in Fig. 5 b, if the reference point image I ₁₂, I ₁₄Between do not have an otherness (identical size of tool and shape), then can't judge the reference point image I ₁₂" and I ₁₄" be by the reference point image I ₁₂' and I ₁₄' (Fig. 5 a) rotates and forms, also or translation forms.Therefore present embodiment is by using two reference point 12,14 of different area, and the position separately of first identification reference point 12,14 images that generate of described imaging form parameter (for example area size of reference point image) of being tried to achieve according to described processing unit 26, and then carry out angle compensation.So, even the anglec of rotation of described imageing sensor 24 surpasses the angle compensation that carries out that 180 degree still can be correct.

With reference to shown in Figure 6, it has shown the mode of the compensated distance of the embodiment of the invention.The imageing sensor 24 that utilizes telechiric device 20 can obtain the preset reference dot image I of reference point 12 and 14 when predeterminable range ₁₂And I ₁₄, when the distance of 12,14 of telechiric device 20 and reference point strengthened gradually, its obtained image then can diminish gradually, and its average coordinates then can more be the center "+" near the image sensing array, I as shown in FIG. ₁₂" ' and I ₁₄On behalf of the user, " ', but this kind skew changed the sensing position of described telechiric device 20, then may not take place to judge situation for moving horizontally by accident because of the change of camera distance if it is not proofreaied and correct.In this exemplary sample, suppose the image I in the described default image-forming range parameter ₁₂And I ₁₄Distance be L, its average coordinates (X ₀, Y ₀) and the center "+" of sensing array between distance be D; Image I in the described first image-forming range parameter ₁₂" ' with I ₁₄" ' distance be l, the distance between the center "+" of its average coordinates and sensing array is d, can utilize the proportionate relationship of (2) formula thus, the deviation (step 500) that compensation is caused because of the camera distance difference:

$\frac{D}{L}=\frac{d}{l}---\left(2\right)$

With reference to shown in Figure 7, the image space of hypothetical reference point is i after compensation ₁₂And i ₁₄, described image has been compensated for as the image of being tried to achieve under same default distance and angle reference, and its average coordinates is shown as (X _i, Y _i), but follow the sensing position (step 600) of mobile remote control device 20 in described sensing range " A ", 24 of imageing sensors continue the digital signal DS that it sensed is sent to processing unit 26 at this moment, 26 of processing units produce second parameter according to digital signal DS, and described second parameter comprises second image space parameter and the second image-forming range parameter of reference point 12,14 on described digital picture behind the sensing position of moving described imageing sensor 24.The described second image space parameter is on the formed plane space of sensing array of imageing sensor 24, is the formed plane space of initial point with induction array center for example, the average coordinates of described reference point 12,14 images that generate; The described second image-forming range parameter is that described reference point generates the distance between image on the formed plane space of sensing array of imageing sensor 24.26 of processing units are according to the first image space parameter after the described compensation and the second image space parameter, calculating reference point image i continuously ₁₂And i ₁₄Displacement Δ S.When calculating, must utilize aforesaid compensation way to continue to carry out the compensation (step 710) of angle and range deviation at described second parameter, in the hope of correct vernier control, because the compensation way of second parameter is identical with first parameter, repeats no more in this.Then, processing unit 26 can utilize mode wireless or that be electrically connected, and its result calculated is sent to image-display units 10.In being preferably, described image-display units 10 has application software (software), described application software is in order to control user interface and vernier 104, behind the control signal S that accepts from processing unit 26, then can on display screen 102, move relative to controlling vernier 104 (step 700).In addition, carrying out reference point image i ₁₂And i ₁₄The calculating of displacement Δ S the time, can select to import one group of scale parameter X _Scale, Y _ScaleIn order to adjust the motion sensitivity of vernier 104, for example, this moment, displacement Δ S can be represented by (3) formula (step 720):

$\mathrm{\ΔS}=(\frac{\mathrm{\Δ}{S}_X}{X_{\mathrm{scale}}},\frac{\mathrm{\Δ}{S}_Y}{Y_{\mathrm{scale}}})---\left(3\right)$

Wherein, Δ S _XBe illustrated in the displacement component of horizontal direction; Δ S _YBe illustrated in the displacement component of vertical direction.Hence one can see that, the X in (3) formula _ScaleAnd Y _ScaleDuring increase, the motion sensitivity of vernier 104 is reduced, that is the sensing displacement of telechiric device 20 must increase the distance that could make that vernier 104 mobile phases are same; Otherwise, the X in (3) formula _ScaleAnd Y _ScaleWhen reducing, the motion sensitivity of vernier 104 is raise, that is the sensing displacement of described telechiric device 20 relatively urine can make vernier 104 mobile phases with distance, so can promote the practicality of control device 100 of the present invention.

With reference to shown in Fig. 8 to 10e, in another embodiment, but the spinning movement of described control device 100,200 analogue simulation knobs, with the functional status of control image display 10.With reference to shown in Figure 8, described control method comprises the following steps: to provide two reference point producing modulated default spectrum, and defines preset range (step 1100); Provide imageing sensor to point in the described reference point preset range on every side (step 1200); Utilize described imageing sensor to receive default spectrum to form digital picture (step 1300); Judge the image space of the reference point on the described digital picture, and produce first parameter (step 1400); Rotate of the spinning movement of described imageing sensor, and produce second parameter (step 1500) with the analogue simulation knob; And calculate anglec of rotation difference between described first and second parameter with the described functional status of relative control (step 1600).

Refer again to Fig. 1,8 and 9a shown in, at first, make reference point 12,14 produce the spectral signal of preset wavelength, for example, wavelength is about 0.84 to 0.94 micron infrared light spectrum signal, but and define sensing range " A " around reference point 12,14, but described sensing range " A " is by the visual angle institute common decision (step 1100) of the lighting angle and the described imageing sensor 24 of reference point 12,14.But then utilize described imageing sensor 24 to point to described sensing range " A " (step 1200), and because the default spectrum that reference point 12,14 is produced is through modulating unit 16 modulation, therefore, only can obtain the sensing image I of reference point 12,14 on the induction array of described imageing sensor 24 ₁₂And I ₁₄(step 1300) also is stored in processing unit 26, shown in Fig. 9 a.Then, the image space of described processing unit 26 calculating reference points 12,14, so that produce first parameter (step 1400) and be stored in processing unit 26 equally, described first parameter comprises according in the formed plane space coordinate of the sensing array of described imageing sensor 24, for example, the center of sensing array "+" is the formed plane space coordinate of initial point, the reference point image I of trying to achieve of calculating ₁₂, I ₁₄Coordinate and average coordinates thereof.For example: in Fig. 9 a, reference point 12 on the described plane space coordinate and 14 formed image I ₁₂And I ₁₄Coordinate be respectively (X ₁₂, Y ₁₂) and (X ₁₄, Y ₁₄), and its average coordinates be (X, Y).

Then, user's (not drawing) can be with the rotation of described telechiric device 20 rotations with the analogue simulation turn-knob, owing to be built in the described telechiric device 20 in the imageing sensor 24 in the present embodiment, therefore, described imageing sensor 24 is done rotation simultaneously, and for example, the user makees telechiric device 20 and turns clockwise in the present embodiment, then the imaging of reference point 12,14 on the sensing array of described imageing sensor 24 then is rotated counterclockwise angle θ (Fig. 9 a), so image I ₁₂, I ₁₄After rotating, form image I ₁₂', I ₁₄' (step 1500), image I ₁₂', I ₁₄' coordinate be respectively (X ₁₂', Y ₁₂') and (X ₁₄', Y ₁₄'), and its average coordinates becomes (X ', Y '), and be stored in equally in the described processing unit 26.Present embodiment has two kinds in order to the mode of the anglec of rotation of calculating telechiric device 20 (imageing sensor 24), first kind of mode is according among Fig. 9 a, utilize the preceding average coordinates (X of rotation, Y) with the online and postrotational average coordinates at the sensing array center "+" of imageing sensor 24 (X ', Y ') and online of the sensing array center "+" of imageing sensor 24 angle calculate the anglec of rotation of telechiric device 20, the described anglec of rotation is shown as angle θ.

Shown in Fig. 9 b, it has shown that the present invention calculates the another kind of embodiment of the anglec of rotation of telechiric device 20, wherein I ₁₂, I ₁₄For the user rotates the image that telechiric device 20 preceding reference point 12,14 are generated in the sensing array; And I ₁₂', I ₁₄' for being docile and obedient hour hands, the user rotates the image that telechiric device 20 back reference point 12,14 are generated in the sensing array.The account form of the anglec of rotation then is to utilize image I ₁₂, I ₁₄Online and image I ₁₂', I ₁₄' online angle theta calculate.26 functional status adjustment and the settings that can control image display device 10 according to the anglec of rotation of being calculated relatively of processing unit.

Refer again to shown in Figure 8, in order to adjust the changing sensitivity of described functional status, in the computation process of anglec of rotation difference, can select input stage apart from parameter to processing unit 26 (steps 1610), for example the class interval parameter in the embodiment of the invention is 2 degree, but that is the anglec of rotation of analogue simulation knob controlling method of the present invention identification at least 2 degree because its cognizable angular range be clockwise and counterclockwise each 358 degree, so be divided into 179 class intervals.In other embodiments, then can change cognizable angle by changing described class interval parameter, and can be set at if import bigger class interval parameter, then the changing sensitivity of described functional status is lower, that is needs rotation telechiric device 20 bigger angles that functional status is changed relatively; Also maybe can be set at if import less class interval parameter, then the changing sensitivity of described functional status is lower, and its setting means is decided because of different products.

Please refer to shown in Figure 10 a～10e, it shows the digital picture that is generated when the analogue simulation knob controlling method that has disclosed present embodiment turns clockwise different angles respectively.Shown in Figure 10 a, it has shown the image (it also can be default image) that the user is generated when not rotating described telechiric device 20, described reference point image I 12 ', I14 ' is identical with reference point image I 12, I14 in the step 1400, can set described functional status and not change this moment; Shown in Figure 10 b, the digital picture that its demonstration user turns clockwise and generated after described telechiric device 30 is spent, and display mode herein is to utilize aforementioned first kind of mode to show the reference point image I ₁₂', I ₁₄' with the reference point image I ₁₂, I ₁₄Between differential seat angle, can set described functional status this moment increases or reduces 20%; Shown in Figure 10 c, it has shown the digital picture that turns clockwise the user described telechiric device 60 degree backs are generated, and can set described functional status this moment increases or reduce 40%; Shown in Figure 10 d, it has shown the digital picture that turns clockwise the user described telechiric device 90 degree backs are generated, and can set described functional status this moment increases or reduce 60%; Shown in Figure 10 e, it has shown the digital picture that turns clockwise the user telechiric device 120 degree back generated, and can set described functional status this moment increases or reduce 80%.Must it should be noted that shown setting value is a kind of embodiment only herein, be not that in other embodiments, the setting of described numerical value can be decided with the demand of product in order to qualification the present invention.In addition, though only do explanation herein with the telechiric device 20 that turns clockwise,, similar when turning clockwise with the detailed embodiment that is rotated counterclockwise telechiric device 20, therefore repeat no more.Though the only position of description references point 12,14 images and angle variation in the embodiments of the invention, but it is not in order to restriction the present invention, in other embodiments, other that utilizes reference point 12,14 images changes the mode control image display 10 relatively and do not break away from spirit of the present invention.

In sum, because the control device of existing image display may be influenced by environment light source, and has the problem that mistake is controlled image display.According to the control device (as Fig. 1 and shown in Figure 3) of image display of the present invention, the default frequency spectrum by modulation reference point is to get rid of the influence that environment light source was caused.Thus, only handle the formed image of reference point during Flame Image Process, have the effect that simplified image is handled complexity and increased the control correctness.

Though the present invention is described by aforementioned preferred embodiments, but described content is not in order to limit the present invention, any the ordinary technical staff in the technical field of the invention can make various changes and modification to the present invention without departing from the spirit and scope of the present invention.Therefore, protection scope of the present invention is when being limited to the appended claims.

Claims (20)

1, a kind of control device that is used to control image display is characterized in that, comprising:

At least one is in order to produce the reference point of default spectral signal;

Modulate the modulating unit of described default spectral signal with predetermined manner; And

Telechiric device, described telechiric device comprises:

Imageing sensor receives modulated described default spectral signal, and produces digital signal; And

Processing unit receives described digital signal, the described digital signal of rectification forming digital picture, the image change that described digital picture only has described reference point image and calculate the image that described reference point generated on described digital picture;

Wherein, described telechiric device is controlled described image display relatively according to described image change, gets rid of other interference of light sources thus, and described other light source produces the equitant spectrum of frequency spectrum with described default spectral signal.

2, control device according to claim 1 is characterized in that, described image display is TV, game machine screen, projection screen or monitor.

3, control device according to claim 1 is characterized in that, described predetermined manner is the periodic modulation with default modulating frequency.

4, control device according to claim 3, it is characterized in that, described imageing sensor has the image sampling frequency, and wherein said default modulating frequency is lower than between described image sampling frequency and described default modulating frequency and the described image sampling frequency and becomes the multiple relation.

5, control device according to claim 3, it is characterized in that, described control device comprises two reference point, wherein said modulating unit is modulated the default spectrum that another reference point is produced with the default spectrum that produced in two reference point of the first default modulating frequency modulation and with the second default modulating frequency, and becomes the multiple relation between described first and second default modulating frequency.

6, control device according to claim 5, it is characterized in that, described imageing sensor has the image sampling frequency, and wherein said first and second default modulating frequency all is lower than described image sampling frequency and described first and second default modulating frequency becomes the multiple relation respectively with between the described image sampling frequency.

7, control device according to claim 1 is characterized in that, described control device also comprises the light filter in the place ahead that places described imageing sensor, thus the outer spectral signal of the frequency spectrum of the described default spectrum of filtering.

8, control device according to claim 7 is characterized in that, described default spectrum is infrared light spectrum; Described light filter is the infrared light light filter.

9, control device according to claim 1 is characterized in that, described telechiric device also comprises in order to send a control signal to the wireless transmission unit of described image display, controls described image display thus relatively.

10, control device according to claim 1 is characterized in that, described telechiric device is electrically connected described image display, controls described image display thus relatively.

11, control device according to claim 1 is characterized in that, described imageing sensor is cmos image sensor or ccd image sensor.

12, control device according to claim 1 is characterized in that, described reference point and described modulating unit are integrated on the described image display or form an independent component jointly.

13, control device according to claim 1 is characterized in that, described image change is that the change in location or the angle of the image that generated on described digital picture of described reference point changes.

14, a kind of control method in order to the control image display is characterized in that, comprises the following steps:

Provide at least one reference point, to produce default spectral signal;

Modulate described default spectral signal with predetermined manner;

Provide imageing sensor receiving modulated described default spectral signal, and produce digital signal;

The described digital signal of rectification only has described reference point image to form digital picture in the wherein said digital picture; And

Calculate the image change of described reference point image that generates on described digital picture;

Control described image display relatively according to described image change;

Get rid of other interference of light sources thus, described other light source produces the equitant spectrum of frequency spectrum with described default spectral signal.

15, control method according to claim 14 is characterized in that, also comprises the following steps: in described imageing sensor the place ahead light filter to be set, so that the outer spectral signal of the frequency spectrum of the described default spectrum of filtering.

16, control method according to claim 15 is characterized in that, described default spectrum is infrared light spectrum; Described light filter is the infrared light light filter.

17, control method according to claim 14 is characterized in that, described predetermined manner is the periodic modulation with default modulating frequency.

18, control method according to claim 14 is characterized in that, described imageing sensor has the image sampling frequency, and described control method also comprises the following steps:

Setting described default modulating frequency is lower than described image sampling frequency and makes and become the multiple relation between described default modulating frequency and the described image sampling frequency.

19, control method according to claim 14 is characterized in that, described imageing sensor is cmos image sensor or ccd image sensor.

20, control method according to claim 14 is characterized in that, described image change by described reference point on described digital picture the change in location of generation image or angle change.

Images