CN107920238A - Image correction apparatus, method for correcting image and projector equipment - Google Patents
Image correction apparatus, method for correcting image and projector equipment Download PDFInfo
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- CN107920238A CN107920238A CN201711070299.8A CN201711070299A CN107920238A CN 107920238 A CN107920238 A CN 107920238A CN 201711070299 A CN201711070299 A CN 201711070299A CN 107920238 A CN107920238 A CN 107920238A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3167—Modulator illumination systems for polarizing the light beam
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Present disclose provides a kind of image correction apparatus, method for correcting image and projector equipment, it is related to projection display technique field, described image means for correcting includes spectral module, polarization state adjustment module, image capture module and correction module, and wherein spectral module is used to incident image light being separated into transmitted light beam and the reflected beams；Polarization state adjustment module is used for the polarization state for adjusting transmitted light beam and then forms the first image, and the polarization state of the reflected beams and then the second image of formation；Image capture module is used to obtain the first image and the second image；Correction module is used to determine correction data according to the first image and the second image, and the aligned in position and overlapping margins of spectral module the first image of correction and the second image are controlled according to correction data.On the one hand the disclosure can accurately obtain image, and realize image rectification according to picture position, and then improve light beam crosstalk phenomenon, improve viewing experience；On the other hand it can realize automatic correction, save manual operation, cut operating costs.
Description
Technical field
This disclosure relates to projection display technique field, in particular to a kind of image correction apparatus, method for correcting image
And projector equipment.
Background technology
With the development of motion picture projection technique, automation has been had spread over including controlling and the big portion including supervision equipment
Subset, or even require the action of switch yard lamp all to realize according to projection and automatically control.But one kind is in movie theatre popularization degree
Very high stereoscopic display device also rests on the stage of debugging correction manually, which includes traditional three light paths and biography
System double light path stereoscopic display device, but since the said equipment manual operation is complicated, so that a people is difficult to complete debugging.
Usually most of automation movie theatre only has a projectionist, difficult to realize that all devices are detected daily, directly
Just it is found when there is more serious light beam crosstalk to equipment, has seriously affected the 3D experience of viewing personnel.And these set at present
It is standby to there is no method to automate, it is necessary to manually go to operate, so as to there is management inconvenience, the problems such as inefficiency.Therefore, it is necessary to study
A kind of image correction apparatus, can detect project effect in time and correct, to meet the active demand of major movie theatre.
It should be noted that information is only used for strengthening the reason to the background of the disclosure disclosed in above-mentioned background section
Solution, therefore can include not forming the information to the prior art known to persons of ordinary skill in the art.
The content of the invention
The purpose of the disclosure is to provide a kind of image correction apparatus, method for correcting image and projector equipment, and then at least
One or more problem caused by the limitation of correlation technique and defect is overcome to a certain extent.
Other characteristics and advantage of the disclosure will be apparent from by following detailed description, or partially by the disclosure
Practice and acquistion.
According to one aspect of the disclosure, there is provided a kind of image correction apparatus, applied to projector equipment, described image correction
Device includes：
Spectral module, for incident image light to be separated into transmitted light beam and the reflected beams；
Polarization state adjustment module, for adjust from the spectral module outgoing the transmitted light beam polarization state and then
Form the first image, and the polarization state of the reflected beams through spectral module reflection and then the second image of formation；
Image capture module, for obtaining described first image and second image respectively；
Correction module, for determining correction data according to described first image and the second image, and according to the correction number
According to the aligned in position and overlapping margins for controlling the spectral module adjustment described first image and the second image.
In a kind of exemplary embodiment of the disclosure, the spectral module includes：
Beam splitter, for incident image light to be separated into transmitted light beam and at least the reflected beams all the way；
Lens, adjust for the transmitted light beam being emitted received from the beam splitter, and by the transmitted light beam
After be emitted to the polarization state adjustment module；
At least one reflector, at least the reflected beams all the way being emitted received from the beam splitter, and
The polarization state adjustment module is emitted to after the reflected beams are reflected.
In a kind of exemplary embodiment of the disclosure, incident image light is separated into a Reuter by the beam splitter
Irradiating light beam and upper the reflected beams, lower the reflected beams, the corresponding reflector quantity are two, the polarization state adjustment module
Including：
First polarization state adjuster, for adjusting the polarization state of the upper the reflected beams from spectral module reflection
And then form the second image；
Second polarization state adjuster, arranged on one end of the first polarization state adjuster, for adjusting from light splitting mould
The polarization state and then the first image of formation of the transmitted light beam of block outgoing；
3rd polarization state adjuster, arranged on one end of the second polarization state adjuster, for adjusting from light splitting mould
The polarization state and then the 3rd image of formation of the lower the reflected beams of block reflection.
In a kind of exemplary embodiment of the disclosure, described image acquisition module includes：
Video camera；
Light beam filter, arranged on the imager chip front end of the video camera, for obtaining the corresponding polarization respectively
Second image, first image and threeth image of the beam filter under default polarization state.
In a kind of exemplary embodiment of the disclosure, the correction module includes：
Motor, is respectively connected to the lens and two reflectors, for adjusting the deflection angle of each reflector respectively
So as to adjust the upper the reflected beams, the launching position of lower the reflected beams, and then make the second image, the 3rd image and the first image
Aligned in position, and for adjusting the horizontal levels of lens so as to adjust the projection size of the transmitted light beam, and then make the
One image and the second image, the overlapping margins of the 3rd image；
Control processor, is respectively connected to image capture module and motor, and the control processor is from image capture module
Obtain second image, the first image and the 3rd image and determine the second correction data, the first correction data and the 3rd school
Correction data, so according to the second correction data and the 3rd correction data control the motor adjust the deflection angle of each reflector from
And make the aligned in position of the second image, the 3rd image and the first image, and the motor tune is controlled according to the first correction data
The horizontal level of whole lens is so that the first image and the second image, the overlapping margins of the 3rd image.
In a kind of exemplary embodiment of the disclosure, the control processor is additionally coupled to the polarization state and adjusts mould
Block, for controlling each polarization state adjuster to adjust upper the reflected beams, transmitted light beam and the lower the reflected beams respectively
The polarization state of polarization state and described image acquisition module collection image match, to obtain second image, the first figure respectively
Picture and the 3rd image.
In a kind of exemplary embodiment of the disclosure, the correction module further includes：
Timer, the timer are provided with multiple predetermined times, and the timer sends first in the first predetermined time
Trigger signal is so that described image means for correcting judges whether the projector equipment provides described image light；And the timer
The second trigger signal is sent so that described image means for correcting is corrected described image in the second predetermined time；Wherein, institute
State the second predetermined time and be later than first predetermined time.
According to one aspect of the disclosure, there is provided a kind of projector equipment, including：
Image correction apparatus as described in above-mentioned any one；
Projecting apparatus, for providing image light；
Metal curtain wall, for the transmitted light beam being emitted received from the polarization state adjuster and the reflected light
Beam, and reflect the transmitted light beam and the reflected beams and then form image.
In a kind of exemplary embodiment of the disclosure, the projecting apparatus is the digital projector for having the function of 3D.
According to one aspect of the disclosure, there is provided a kind of method for correcting image, applied to projector equipment, described image correction
Method includes：
Image light is provided；
Incident image light is separated into transmitted light beam and the reflected beams, and is adjusted from described in spectral module outgoing
The polarization state and then the first image of formation of transmitted light beam, and the polarization state of the reflected beams through spectral module reflection
And then form the second image；
Described first image and second image are obtained, and determines to correct according to described first image and the second image
Data, and according to the correction data control the aligned in position of spectral module correction described first image and the second image with
And overlapping margins.
As shown from the above technical solution, a kind of image correction apparatus that the disclosure provides, its advantage and good effect are：
A kind of image correction apparatus that the disclosure provides, including spectral module, polarization state adjustment module, Image Acquisition mould
Block and correction module, the image light projected on the screen can be adjusted by spectral module and polarization state adjustment module first
Separated first image and the second image are formed, secondly image capture module can gather the first image and the second image respectively simultaneously
By image feedback to correction module, further correction module can determine correction data so as to control spectral module tune by computing
The aligned in position and overlapping margins of whole first image and the second image.
The image correction apparatus that the disclosure provides, applied to projector equipment, by gathering the figure projected on the screen in real time
Picture simultaneously corrects, and on the one hand can accurately obtain image, and realizes image rectification according to picture position, and then improves light beam crosstalk and show
As improving viewing experience；On the other hand it can realize automatic correction, save manual operation, cut operating costs.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not
The disclosure can be limited.
Brief description of the drawings
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the disclosure
Example, and be used to together with specification to explain the principle of the disclosure.It should be evident that drawings in the following description are only the disclosure
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 schematically shows the structural representation that disclosure exemplary embodiment includes the projector equipment of image correction apparatus
Figure；
Fig. 2 meanings property shows image correction apparatus schematic diagram in disclosure exemplary embodiment；
Fig. 3 meanings property shows method for correcting image schematic diagram in disclosure exemplary embodiment；
Fig. 4 meanings property shows the automatic correcting process figure of projector equipment in disclosure exemplary embodiment；
Fig. 5 meaning property show projector equipment in disclosure exemplary embodiment 24 it is small when work flow diagram；
The image that Fig. 6 schematically shows the transmitted light beam before being corrected in disclosure example embodiment, two the reflected beams are formed
Position；
The image that Fig. 7 schematically shows the transmitted light beam of disclosure example embodiment lieutenant colonel center, two the reflected beams are formed
Position；
The figure that Fig. 8 schematically shows the transmitted light beam that completion is corrected in disclosure example embodiment, two the reflected beams are formed
Image position.
Embodiment
Example embodiment is described more fully with referring now to attached drawing.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, these embodiments are provided so that the disclosure will more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, knot
Structure or characteristic can be incorporated in one or more embodiments in any suitable manner.In the following description, there is provided permitted
More details fully understand embodiment of the present disclosure so as to provide.It will be appreciated, however, by one skilled in the art that can
Omitted with putting into practice the technical solution of the disclosure one or more in the specific detail, or others side can be used
Method, constituent element, device, step etc..In other cases, be not shown in detail or describe known solution to avoid a presumptuous guest usurps the role of the host and
So that each side of the disclosure thickens.
In this specification using term "one", " one ", "the" and " described " to represent there are one or more elements/
Part/etc.；Term " comprising " and " having " is representing the open meaning being included and refer to except listing
Key element/part/also may be present outside waiting other key element/part/etc.；Term " first " and " second " etc. are only made
Used for mark, be not the quantity limitation to its object.
This example embodiment first proposed a kind of image correction apparatus applied to projector equipment, with reference to Fig. 1, Fig. 2
Shown, its advantage and good effect are：
The image correction apparatus that the disclosure provides can include spectral module 101, polarization state adjustment module 201, image
Acquisition module 301 and correction module 401, the image light projected on the screen can pass through spectral module 101 and polarization first
The adjustment of status adjustment module 201 forms separated first image and the second image, and secondly image capture module 301 can be adopted respectively
Collect the first image and the second image and by image feedback to correction module 401, further correction module 401 can be true by computing
Correction data is determined so as to control spectral module 101 to adjust the aligned in position and overlapping margins of the first image and the second image.
The image correction apparatus that the disclosure provides, applied to projector equipment, by gathering the figure projected on the screen in real time
Picture simultaneously corrects, and on the one hand can accurately obtain image, and realizes image rectification according to picture position, and then improves light beam crosstalk and show
As improving viewing experience；On the other hand it can realize automatic correction, save manual operation, cut operating costs.
In the following, a kind of image correction apparatus applied to projector equipment in this example embodiment will be carried out further
Illustrate.
In this exemplary embodiment, the spectral module 101 can include beam splitter 102, lens 105 and at least
One reflector 103.Wherein described beam splitter 102 can be polarizing beam splitter, and it is in 45 degree that it, which can include two,
The prism of setting, and the prism cementing of the two 45 degree settings is together, so as to which incident unpolarized image light is separated
For through Beam beam and a branch of the reflected beams, wherein, the separated light from the position incidence of two prism cementings is to light
The transmitted light beam that beam optical splitter left direction is propagated, is to above beam splitter from the separated light of two prism surface incidence
Or the reflected beams that lower section is propagated.
Further, the spectral module 101 in this example embodiment can utilize lens 105 to adjust beam splitter 102
Separated transmitted light beam, then be emitted to polarization state adjustment module 20 and then be projected to projection screen 30.Due to transmitted light
The light length of beam and the reflected beams causes the image cause not of uniform size being incident upon on projection screen 30, therefore institute there may be difference
It can be offset lens to state lens 105, which can be arranged at the transmission that the beam splitter 102 is separated and is emitted
In the light path of light beam, and the offset lens adjusted relative to the horizontal level of beam splitter 102 it is described to shrink or amplify
Transmitted light beam, so that the light length of transmitted light beam (contrast the reflected beams) is compensated, so that transmitted light beam and the reflected beams are in projection screen
The image formed on curtain 30 is in the same size.
In addition, this example implement at least one reflector 103 can be arranged on it is separated extremely by beam splitter 102
In the light path of few a branch of the reflected beams, and polarization state adjustment module 201 is emitted to form image after the reflected beams are reflected.
In this exemplary embodiment, in order to realize 3D viewing effects, the beam splitter 102 provided can be by incident unpolarized figure
Upper the reflected beams and the lower the reflected beams being separated into as light on through Beam beam and upward, downward both direction, it is corresponding
One upper reflector 103 and lower reflector 104, and 103 He of upper reflector can be respectively set in the both sides up and down of beam splitter 102
Lower reflector 104 can be arranged in the light path by the separated upper and lower two beam the reflected beams of beam splitter 102, can be used for connecing
Receive the reflected beams that beam splitter 102 is isolated and the reflected beams are reflected, further by the reflection after reflection
Beam exit is to the polarization state adjustment module 201 to form image.In the present embodiment, the reflector 103 or 104
It can be the speculum for being arranged on 102 either above or below of beam splitter.
You need to add is that the unpolarized image light of beam splitter 102 is incided after separation, the upper reflected light of outgoing
Beam projects the image formed on projection screen 30, is typically only transmitted light beam and projects the image that is formed on projection screen 30
Top half, is usually the 50%~60% of all images；Likewise, lower the reflected beams project what is formed on projection screen 30
Image, is typically only the latter half that transmitted light beam projects the image formed on projection screen 30, is usually all images
50%~60%.Therefore, in this exemplary embodiment, the image that upper the reflected beams, lower the reflected beams are formed is defaulted as each
Top half, the latter half of entire image are accounted for, and is respectively 50%, the image that upper the reflected beams are formed as shown in Figure 6
103A, the image 105A that the image 104A and transmitted light beam that lower the reflected beams are formed are formed, wherein what upper the reflected beams were formed
The image 104A that image 103A is formed with lower the reflected beams merges the image that can be formed and be formed corresponding to transmitted light beam
The entire image of 105A.
In this exemplary embodiment, polarization state adjustment module can be used for adjusting the transmission from spectral module outgoing respectively
The polarization state of light beam and upper the reflected beams, the polarization state of lower the reflected beams through spectral module reflection, and according to polarization state
Difference come screen via projection screen 30 reflect transmitted light beam and the reflected beams so that will originally it is overlapping including in projection screen
The image of transmitted light beam on 30 and the image separation of the reflected beams, in order to record each individual image respectively, so that
Can accurately acquisition of transmission light beam formed image and the reflected beams formed image and determine each image position and size,
With the position according to each image and size come preferably correction chart picture.In addition, in cinema screening positive, transmitted light beam and
The switching that the reflected beams can also be polarized according to certain frequency, and coordinate passive type 3D glasses and then image is formed 3D
Effect.
Further, in order to the polarization state of transmitted light beam, upper the reflected beams and lower the reflected beams, institute can be adjusted respectively
Multiple polarization state adjusters, such as three polarization state adjusters 202,203 can be included by stating polarization state adjustment module 201
With 204, and each polarization state adjuster size is same or like, and one end of the first polarization state adjuster 202 is set
There is the second polarization state adjuster 203, one end of the second polarization state adjuster 203 is provided with the 3rd polarization
State regulator 204, and can be arranged at intervals between three polarization state adjusters.It should be noted that adjacent polarization herein
Interval between state regulator may be the same or different.In addition, three polarization state adjusters can be in vertical direction
Form a line, can also be staggered in vertical direction successively.In addition, in order to coordinate the crevice projection angle of upper and lower the reflected beams, with
Make the image of projection indeformable, can be with corresponding to the polarization state adjuster 202 and 204 of upper the reflected beams, lower the reflected beams
There is certain angle tilt relative to vertical direction.
In addition, for each polarization state adjuster, its working status may each comprise optically-active state and all-pass
State.Optically-active state herein refers to rotate by the image light of polarization state adjuster, and then changes light beam in itself
Polarization state, and optically-active state is divided into left-handed light state and dextrorotation light state.After natural light is by beam splitter prism, formation
Transmission and the linearly polarized light that the reflected beams are 0 ° or 90 °, linearly polarized light after polarization state adjuster by being changed into circular polarization
Light or elliptically polarized light (left-handed state or dextrorotation state).All-pass state refers to by the image light of polarization state adjuster not
Rotate, transmitted light beam or the reflected beams keep itself original polarization state.
In this exemplary embodiment, image capture module 301 can include video camera, and the video camera can be used for obtaining
The image formed from the transmitted light beam and the reflected beams of the polarization state adjustment module 201 outgoing, due to usually by transmitted light
Beam and the reflected beams projection form image on the screen, therefore the camera of video camera can be made to be directed at projection screen 30, so as to
The image that accurate acquisition of transmission light beam and the reflected beams are formed, to facilitate follow-up preferably correction chart picture.
Further, in order to reach more preferable collection effect, accordingly it will usually be desirable to which the polarised light of shielding is adjusted in contrast
Polarization state.Such as：Left-handed image 105A is gathered, image 104A and 103A are usually adjusted to dextrorotation state.It is real in this example
Apply in example, the light beam filter can be circular polarization optical filtering, can further select optically-active state to be left-handed or
The circular polarization optical filtering of dextrorotation, i.e., left-handed circular polarization optical filtering can only gather left-handed light image, the circular polarization optical filtering of dextrorotation
Dextrorotation light image can only be gathered.
Specifically, in this exemplary embodiment, the projection screen 30 used can be metal curtain wall, and left-handed light image
It is dextrorotation light image after metal curtain wall reflects, dextrorotation light image is left-handed light image after metal curtain wall reflects；At it
In his embodiment, left-handed light image can also be reflected into left-handed light image by the projection screen 30 used, and dextrorotation light image is anti-
Penetrate and do not do particular determination herein for dextrorotation light image, the disclosure.
For example, can be when the optically-active state of the light beam filter of the video camera be left-handed, in order to gather
The first image 105A that transmitted light beam projects on metal curtain wall, can adjust the second polarization state tune corresponding to transmitted light beam
Under section device 203 is dextrorotation state, while adjustment corresponds to the first polarization state adjuster 202 of upper the reflected beams and corresponds to
3rd polarization state adjuster 201 of the reflected beams is left-handed state.Such as in the second polarization state adjuster 203 it is right-handed rotation
During state, the image by 203 is dextrorotation light image, is left-handed light image after projection screen 30 such as metal curtain wall reflection,
It is identical with the optically-active state of the light beam filter of current camera, so that 301 collections described first of image capture module
Image 105A.
In other examples, can also be dextrorotation in the optically-active state of the light beam filter of the video camera
When, in order to gather the second image 103A that upper the reflected beams project on projection screen 30, can adjust corresponding to upper reflected light
First polarization state adjuster 202 of beam is left-handed state, while adjusts the second polarization state adjusting corresponding to transmitted light beam
Device 203 and the 3rd polarization state adjuster 204 corresponding to lower the reflected beams are dextrorotation state.Such as in the first polarization state
Adjuster 202 is left-handed light state, and the image by 202 is left-handed light image, is reflected through such as metal curtain wall of projection screen 30
It is dextrorotation light image afterwards, it is identical with the optically-active state of the light beam filter of current camera, so that image capture module 301
Only gather the second image 103A.
As shown in Figure 6, in figure for gathered respectively by image capture module 301 formed by upper the reflected beams second
Image 103A, the first image 105A formed by transmitted light beam and the 3rd image 104A formed by lower the reflected beams.
In addition, in certain embodiments since the dimension scale of screen is different, video camera possibly can not gather whole screen
Complete image, therefore the image of camera acquisition screen medium position a certain range size can be set, it can also be gathered
The image of his position a certain range size；In other examples, the quantity that can also set video camera is two or more
Portion, is just simultaneously or sequentially acquired the image of the multiple regions of whole screen, to improve calibration result and correction efficiency.
In this exemplary embodiment, correction module 401 can include motor 402 and control processor 403.Wherein control
Processor 403 can be respectively connected to image capture module 301 and motor 402；Motor 402 can be connected to reflector 103,
Reflector 104 and lens 105.Specifically, control processor 403 can be communicated to connect with image capture module, and in real time
Obtain image capture module 301 gather the second image, the first image and the 3rd image, so as to according to the second image,
First image and the 3rd image carry out computing so that it is determined that the second correction data, the first correction data and the 3rd correction number
According to.The motor adjustment reflector 103 and reflection can be further controlled according to the second correction data and the 3rd correction data
The deflection angle of device 104 is so that the aligned in position of the second image, the 3rd image and the first image, and according to the first correction number
According to the horizontal level for controlling the motor adjustment lens 105 so that the first image and the second image, the border weight of the 3rd image
Close.
Specifically, motor 402 can be connected to reflector 103, reflector 104 and lens 105.Motor 402 can be with
For adjusting the deflection angle of reflector 103 and reflector 104 respectively so as to adjust upper the reflected beams, lower the reflected beams are projecting
Launching position on screen 30, and then make the aligned in position of the second image 103A, the 3rd image 104A and the first image 105A.Lift
For example, as shown in fig. 6, using the cross searching point of the matts of the first image 105A as reference point, reflector 103 is adjusted respectively
Deflection angle with reflector 104 is so as to adjust the position of the second image 103A, the 3rd image 104A to the first image 105A's
The cross searching point of matts is drawn close, the second image 103B, the 3rd image 104B that the image after adjustment can be as shown in Figure 7,
And remain unchanged the first image 105A.
Further, motor 402 can be also used for the horizontal levels of adjustment lens 105 and project so as to adjusting transmitted light beam
Projection size on screen 30, and then make the first image and the second image, the overlapping margins of the 3rd image.For example, such as Fig. 7
Shown, the second image 103B, the 3rd image 104B positions after being adjusted in figure align with the first image 105A, still
The border of first image 105A outside the second image 103B, the 3rd image 104B, can adjust the horizontal levels of lens 105 with
Reduce the first image 105A, and then form the first image 105B as shown in Figure 8, in figure the first image 105B with the second figure
As the outer boundary coincidence of 103B, the 3rd image 104B, so far correction is completed.
You need to add is that image capture module 301 whole trimming process include correction before, correction in and correct
Each image is being gathered in real time afterwards, until correction is completed.Therefore, for the ease of the polarization shape of each polarization state adjuster of control
State with coordinate image capture module collect correction before, correction in and correction after image；Control processor 403 can also connect
Polarization state adjustment module 201 is connected to, can be used for controlling each polarization state adjuster 202,203 and 204 respectively, to adjust
The polarization state of the whole upper the reflected beams, transmitted light beam and lower the reflected beams is inclined with described image acquisition module collection image
Polarization state matches, to obtain second image, the first image and the 3rd image respectively.Polarization state in this example embodiment
The image foregoing with the detail and beneficial effect of the cooperation collection image of image capture module 301 of adjustment module 201 is adopted
It is described in detail in collection module 301, therefore details are not described herein again.
In this exemplary embodiment, the correction module further includes timer 404, and the timer 404 can be provided with
Multiple predetermined times, and image correction apparatus can be made to perform corresponding operation, wherein timer 404 in corresponding predetermined time
The first trigger signal can be sent so that image correction apparatus 10 judges whether the projector equipment provides in the first predetermined time
Image light；And timer 404 the second predetermined time send the second trigger signal so that image correction apparatus 10 to image into
Row correction；Wherein, the second predetermined time is later than the first predetermined time.Further, timer can be RTC (Real-Time
Clock clock chips), which can record the time in real time.
In terms of existing technologies, the image correction apparatus 10 in this example can not only realize automatic correction, may be used also
To set the preset time of corresponding actions by timer, correction automation is fully realized, so as to improve the light beam in projection
Crosstalk phenomenon, improves viewing experience, while eliminates manual operation, cuts operating costs, additionally easy to the expansion of movie theatre scale
Greatly.
A kind of projector equipment is additionally provided in this example embodiment, which includes at least above-mentioned image rectification
Device 10, can also include projecting apparatus 20 and metal curtain wall 30.In addition to this it is possible to including memory etc., wherein memory
It can include the network additive storage device of multigroup mutually redundancy, and each network additive storage device is assigned for server
The corresponding IP address of access visit is carried out, memory can also store corresponding video data, voice data and correction data
Deng.
Further, image light can be launched or be provided to projecting apparatus 20, and the projecting apparatus 20 can be digital projector, institute
State digital projector to can be used for extracting video information from memory and then decode and described image light is provided, the numeral is put
Film projector can be also used for extracting the audio-frequency information of the corresponding video information from memory and then decode and play audio content,
The digital projector is assigned corresponding IP address at the same time, the content for access for server control and memory
Transmission.In addition, the digital projector there can also be 3D, and send 3D synchronizing signals.In addition, metal curtain wall can be managed
Solve as projection screen 30, can be used for the transmitted light beam received from polarization state adjuster outgoing and the reflected light
Beam, and reflect the transmitted light beam and the image of the reflected beams formation.
In addition, this example embodiment additionally provides a kind of method for correcting image, with reference to shown in Fig. 3, applied to projector equipment,
Described image bearing calibration can include：
S31, provide image light；
Incident image light, is separated into transmitted light beam and the reflected beams by S32, and is adjusted from spectral module outgoing
The polarization state and then the first image of formation, and the reflected beams through spectral module reflection of the transmitted light beam are inclined
Polarization state and then the second image of formation；
S33, obtain described first image and second image, and is determined according to described first image and the second image
Correction data, and the spectral module correction described first image and the position pair of the second image are controlled according to the correction data
Neat and overlapping margins.
The detail and beneficial effect of method for correcting image in this example embodiment are in corresponding image rectification
It is described in detail in device, therefore details are not described herein again.
In addition, the automatic correcting process for the projector equipment including above-mentioned image correction apparatus that this example embodiment provides can
With as follows, show with reference to Fig. 4：
S41, digital projector play the testing piece specified automatically；
S42, image correction apparatus prepare automatic correction：
S43, image correction apparatus detect the image on metal curtain wall by Image Acquisition camera and detect testing piece and be
No is default testing piece；
S431, image correction apparatus are in the case of detection testing piece is unmatched, it is necessary to give data feedback to movie theatre service
Device, and notify projectionist to play correct testing piece；
S432, image correction apparatus return to step S42 after detection testing piece is default testing piece；
S44, start the image on Image Acquisition camera collection metal curtain wall after correcting automatically, and image is sent to control
Processor processed；
S45, control processor determine correction data by computing, and according to correction data control motor adjustment lens and instead
Emitter etc. is untill each characteristic point is mutually matched on image；
S46, automatic correction are completed, and upload data.
It should be noted that most movie theatres can all carry out the behaviour such as equipment detection and film detection before formal film projection
Make.And can traditional equipment detection be mainly used for the equipment such as movie theatre test-run a machine, detection digital projector, memory and carry out normally
Work, and whether can be worked normally not comprising projector equipment such as stereoscopic display device.The disclosure, which can detect projector equipment, to be added
Enter into the link of equipment detection, digital projector can play specific film in detection process, the time of the movie playback and
Content is preset in advance.Film detection then plays 2D or 3D films for movie theatre, and whether test movie playback is normal.In addition, broadcast
Putting 3D film stereoscopic display devices needs the 3D signals of synchronous digital projector.
Furthermore since the image correction apparatus of the disclosure is also provided with timer, in image rectification flow, own
Triggering item is all default in advance, periodically starts detection correction daily, it is not necessary to artificial interference.The present invention can be any in whole day
Time setting correction, digital projector then need to be set in the corresponding testing piece of broadcasting of correction automatically.
This example embodiment additionally provide a kind of cinema projection equipment 24 it is small when workflow, applying described has figure
As the projector equipment of means for correcting, show with reference to Fig. 5：
S51、7:00-8:00, cinema equipment start, stereoscopic display device Auto Power On；
S52、8:30-9:00, digital projector plays the testing piece specified automatically；
S53、8:35-8:45, stereoscopic display device corrects automatically at the appointed time；
S54、8:45-9:00, stereoscopic display device confirms correction as a result, and by data feedback to cinema server；
S55、9:00-11:00,3D test films are played, confirm 3D viewing effects；
S56、12:00-24:00, the formal projection time section of movie theatre；
S57、23:00-24:00, equipment inspection cleaning；
S58、1:00-7:00, the time of having a rest.
Those skilled in the art will readily occur to the disclosure its after considering specification and putting into practice invention disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principle of the disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope and spirit of the disclosure are by appended
Claim is pointed out.It should be appreciated that the accurate knot that the disclosure is not limited to be described above and is shown in the drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure only by appended claim Lai
Limit.
Claims (10)
1. a kind of image correction apparatus, applied to projector equipment, it is characterised in that described image means for correcting includes：
Spectral module, for incident image light to be separated into transmitted light beam and the reflected beams；
Polarization state adjustment module, for adjusting polarization state and then the formation of the transmitted light beam from spectral module outgoing
First image, and the polarization state of the reflected beams through spectral module reflection and then the second image of formation；
Image capture module, for obtaining described first image and second image respectively；
Correction module, for determining correction data according to described first image and the second image, and according to the correction data control
Make the spectral module adjustment described first image and the aligned in position and overlapping margins of the second image.
2. image correction apparatus according to claim 1, it is characterised in that the spectral module includes：
Beam splitter, for incident image light to be separated into transmitted light beam and at least the reflected beams all the way；
Lens, for the transmitted light beam being emitted received from the beam splitter, and go out after the transmitted light beam is adjusted
It is incident upon the polarization state adjustment module；
At least one reflector, at least the reflected beams all the way being emitted received from the beam splitter, and by institute
The polarization state adjustment module is emitted to after stating the reflected beams reflection.
3. image correction apparatus according to claim 2, it is characterised in that the beam splitter is by incident image light
Transmitted light beam all the way and upper the reflected beams, lower the reflected beams are separated into, the corresponding reflector quantity is two, the polarization
Status adjustment module includes：
First polarization state adjuster, for adjust from the spectral module reflection the upper the reflected beams polarization state and then
Form the second image；
Second polarization state adjuster, arranged on one end of the first polarization state adjuster, for adjusting from spectral module
The polarization state and then the first image of formation for the transmitted light beam penetrated；
3rd polarization state adjuster, it is anti-from spectral module for adjusting arranged on one end of the second polarization state adjuster
The polarization state and then the 3rd image of formation for the lower the reflected beams penetrated.
4. image correction apparatus according to claim 3, it is characterised in that described image acquisition module includes：
Video camera；
Light beam filter, arranged on the imager chip front end of the video camera, for obtaining the corresponding light beam respectively
Second image, first image and threeth image of the filter under default polarization state.
5. image correction apparatus according to claim 4, it is characterised in that the correction module includes：
Motor, is respectively connected to the lens and two reflectors, for adjust respectively the deflection angle of each reflector so as to
The upper the reflected beams, the launching position of lower the reflected beams are adjusted, and then makes the position of the second image, the 3rd image and the first image
Alignment is put, and for adjusting the horizontal level of lens so as to adjust the projection size of the transmitted light beam, and then make the first figure
As the overlapping margins with the second image, the 3rd image；
Control processor, is respectively connected to image capture module and motor, and the control processor is obtained from image capture module
Second image, the first image and the 3rd image simultaneously determine the second correction data, the first correction data and the 3rd correction number
According to, so according to the second correction data and the 3rd correction data control the motor adjust each reflector deflection angle so that
The aligned in position of second image, the 3rd image and the first image, and control the motor to adjust thoroughly according to the first correction data
The horizontal level of mirror is so that the first image and the second image, the overlapping margins of the 3rd image.
6. image correction apparatus according to claim 5, it is characterised in that the control processor is additionally coupled to described inclined
Status adjustment of shaking module, for control respectively each polarization state adjuster adjust the upper the reflected beams, transmitted light beam with
And the polarization state of lower the reflected beams is matched with the polarization state of described image acquisition module collection image, to obtain described second respectively
Image, the first image and the 3rd image.
7. according to claim 1~6 any one of them image correction apparatus, it is characterised in that the correction module further includes：
Timer, the timer are provided with multiple predetermined times, and the timer sends the first triggering in the first predetermined time
Signal is so that described image means for correcting judges whether the projector equipment provides described image light；And the timer is
Two predetermined times send the second trigger signal so that described image means for correcting is corrected described image；Wherein, described
Two predetermined times are later than first predetermined time.
A kind of 8. projector equipment, it is characterised in that including：
Image correction apparatus as described in claim 1~7 any one；
Projecting apparatus, for providing image light；
Metal curtain wall, for the transmitted light beam being emitted received from the polarization state adjuster and the reflected beams, and
Reflect the transmitted light beam and the reflected beams and then form image.
9. projector equipment according to claim 8, it is characterised in that the projecting apparatus is the numeral projection for having the function of 3D
Machine.
10. a kind of method for correcting image, applied to projector equipment, it is characterised in that described image bearing calibration includes：
Image light is provided；
Incident image light is separated into transmitted light beam and the reflected beams, and adjusts the transmission from spectral module outgoing
The polarization state of light beam and then form the first image, and the polarization state of the reflected beams through spectral module reflection and then
Form the second image；
Described first image and second image are obtained, and correction number is determined according to described first image and the second image
According to, and according to the correction data control spectral module correction described first image and the second image aligned in position and
Overlapping margins.
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| CN201711070299.8A CN107920238A (en) | 2017-11-03 | 2017-11-03 | Image correction apparatus, method for correcting image and projector equipment |
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| CN201711070299.8A CN107920238A (en) | 2017-11-03 | 2017-11-03 | Image correction apparatus, method for correcting image and projector equipment |
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Application publication date: 20180417 |