CN104853123B - Projection arrangement and its bearing calibration - Google Patents
Projection arrangement and its bearing calibration Download PDFInfo
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- CN104853123B CN104853123B CN201410049618.7A CN201410049618A CN104853123B CN 104853123 B CN104853123 B CN 104853123B CN 201410049618 A CN201410049618 A CN 201410049618A CN 104853123 B CN104853123 B CN 104853123B
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- image
- correction
- image data
- synchronization delay
- projection arrangement
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Abstract
A kind of projection arrangement and its bearing calibration.In the bearing calibration of projection arrangement, its step includes：Multiple corrections are produced with reference to image data refer to image data at least one；Display refers to image with reference to corresponding to image data with reference to image data and correction with reference to image and correction, wherein, correction corresponds to multiple synchronization delay values respectively with reference to image；Then, selection referred to reference to image and correction in image be normal images person to choose image, and it is to choose synchronization delay value to be derived from choosing the synchronization delay value of image；Finally foundation chooses synchronization delay value to be corrected projection arrangement again.
Description
Technical field
The invention relates to a kind of projection arrangement, and in particular to a kind of bearing calibration of projection arrangement.
Background technology
With the evolution of electronics technology, all more important work in life is completed using electronic product, is that modern must
Standby ability.And on the premise of easy to carry, the reception and registration of image information is carried out by minitype projection machine, turns into a kind of trend
Trend.
However, minitype projection machine arrives correct position when being projected, it is necessary to correct adjacent two displays up and down and arrange,
If without above-mentioned corrective action, the display image that will make to see produces the even completely fuzzy stage of ghost image.Here, it is directed to
The above-mentioned corrective action that minitype projection machine is carried out is, it is necessary to learn the horizontal synchronization delay value of minitype projection machine
(Hdelay), the synchronization delay value of each minitype projection machine is all not necessarily identical.In known technical field, usually through
Artificial mode, eyes are coordinated to act the observation of display picture to synchronize the adjustment of length of delay, but this correction side
The suitable elapsed time of formula, and during a large amount of productions, the fluency of production can be seriously affected, and reduce the production of production
Can, it is a kind of inefficent practice.
The content of the invention
The present invention provides a kind of projection arrangement and its bearing calibration, refers to image by providing multiple corrections, comes quick
Know the synchronization delay value of projection arrangement, and be corrected according to this.
The bearing calibration of the projection arrangement of the present invention, its step include：It is multiple with reference to image data generation at least one
Correction refers to image data；Display reference image and multiple corrections with reference to corresponding to image data is more with reference to corresponding to image data
Individual correction refers to image, wherein, multiple corrections correspond to multiple synchronization delay values respectively with reference to image；Then, selection refers to image
And it is that normal images person is to choose image that multiple corrections, which are referred in image, and the synchronization delay value for being derived from choosing image is choosing
Middle synchronization delay value；Finally foundation chooses synchronization delay value to be corrected projection arrangement again.
In one embodiment of this invention, above-mentioned be directed to produces the step of correction refers to image data with reference to image data
Including：Show that row data is moved according to synchronization delay value to carry out the displacement of first direction for multiple odd numbers with reference to image data
Make, and show that row data is moved according to synchronization delay value to carry out the displacement of second direction for multiple even numbers with reference to image data
Make to refer to image data to produce correction, wherein, first direction is opposite with second direction.
In one embodiment of this invention, above-mentioned first direction and the corresponding each synchronization delay value of second direction foundation
Sign determines.
In one embodiment of this invention, the step of above-mentioned display refers to image with reference to image and correction includes：Display
In the single display page or shown with reference to image and correction with reference to image with reference to image and correction with reference to image in multiple aobvious
Show in the page.
In one embodiment of this invention, one image data is referred to reference to corresponding two corrections of image data.
The present invention separately proposes a kind of projection arrangement, including controller and image projector.Controller is at least one ginseng
Examine the multiple corrections of image data generation and refer to image data, image projector foundation refers to image with reference to image data and correction and provided
Material refers to image to show with reference to image and correction, wherein, correction corresponds to multiple synchronization delay values respectively with reference to image.Wherein,
It is that normal images person is to choose image that the controller, which selects this to be referred to reference to image and correction in image, and is derived from choosing shadow
The synchronization delay value of picture is chooses synchronization delay value, and foundation chooses synchronization delay value to be corrected projection arrangement.
Based on a kind of above-mentioned, projection arrangement of present invention offer, show that multiple reference images and correction refer to image, wherein,
Correction corresponds to multiple synchronization delay values respectively with reference to image.Referred to by observation with reference to image and correction in image, whichever is can
With the normal images clearly distinguished, by its corresponding synchronization delay value, the synchronization delay value of current projection arrangement can be learnt.
And this synchronization delay value is utilized, quickly projection arrangement can be corrected, effectively maintain the display quality of projection arrangement.
Brief description of the drawings
For features described above of the invention and advantage can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make
Carefully it is described as follows, wherein：
Fig. 1 illustrates the flow chart of the bearing calibration of the projection arrangement of one embodiment of the invention.
Fig. 2A-Fig. 2 C and Fig. 3 A- Fig. 3 C illustrate different corrections different with reference to caused by image data and refer to shadow respectively
As the schematic diagram of data.
Fig. 4 A and Fig. 4 B illustrate the reference image of the embodiment of the present invention respectively and correction refers to the display mode of image
Embodiment schematic diagram.
Fig. 5 illustrates the schematic diagram of the projection arrangement of one embodiment of the invention.
Embodiment
Fig. 1 is refer to, Fig. 1 illustrates the flow chart of the bearing calibration of the projection arrangement of one embodiment of the invention.In step
In S110, multiple corrections are produced for the reference image data of one or more and refer to image data.Synchronous reference is asked herein
Fig. 1, Fig. 2A-Fig. 2 C and Fig. 3 A- Fig. 3 C, wherein Fig. 2A-Fig. 2 C and Fig. 3 A- Fig. 3 C are illustrated respectively different refers to image data
Schematic diagram of the caused different corrections with reference to image data.Wherein, in fig. 2, set reference image data is shown
Reference image 210 be digital " 1 " image, be then for the reference image with reference to image 210 and in Fig. 2 B and Fig. 2 C
Data and respectively foundation synchronization delay value are equal to correction caused by -1 and+1 and refer to shadow with reference to the corresponding correction of image data
As 220 and 230.
It is worth noting that, in fig. 2b, based on correction with reference to condition of the synchronization delay value corresponding to image 220 equal to -1
Under, correction is caused by foundation refers to the image data progress displacement action of image 210 with reference to the image data of image 220.
Specifically, it is to show row data for the odd number with reference to image data that correction refers to image data with reference to the correction of image 220
The displacement action along one pixel of direction DIR1 displacements is carried out, and shows that row data carries out edge for the even number with reference to image data
Caused by the displacement action of one pixel of direction DIR2 displacements comes, wherein, direction DIR1 and direction DIR2 are opposite.It is similar
As, in fig. 2 c, under conditions of being equal to+1 with reference to synchronization delay value corresponding to image 230 based on correction, correction refers to image
220 correction is then to show that row data is carried out along direction DIR1 displacements one for the even number with reference to image data with reference to image data
The displacement action of individual pixel, and show that row data is carried out along one pixel of direction DIR2 displacements for the odd number with reference to image data
Displacement action come caused by.
Subsidiary one carried, and the above-mentioned displacement amplitude on showing row data is produced according to the absolute value of synchronization delay value
It is raw, using Fig. 2 B as example, if correction, with reference to when synchronization delay value is equal to-N corresponding to image 220, correction refers to the school of image 220
Just it is being then to show that row data is carried out along the N number of pixel of direction DIR1 displacements for the odd number with reference to image data with reference to image data
Displacement action, and show that row data moved along the displacement of the N number of pixel of direction DIR2 displacements for the even number with reference to image data
Make to produce, wherein, N is positive integer.
Certainly, using Fig. 2 C as example, if correction, with reference to when synchronization delay value is equal to+N corresponding to image 230, correction refers to
The correction of image 230 is then to show that row data is carried out along direction DIR1 positions for the even number with reference to image data with reference to image data
The displacement action of N number of pixel is moved, and shows that row data is carried out along the N number of picture of direction DIR2 displacements for the odd number with reference to image data
The displacement action of element produces, wherein, N is positive integer.
In addition, in embodiments of the present invention, can have with reference to image data multiple.In figure 3 a, set reference shadow
The reference image 310 shown as data is the image of digital " 2 ", and the correction in Fig. 3 B and Fig. 3 C refers to image 320
And 330 are respectively to be directed to reference to produced by the reference image data foundation synchronization delay value -2 and+2 respectively of image 310
's.
Here, in figure 3b, correction refers to image data with reference to the correction of image 320 to be directed to reference to the strange of image data
Digital display shows that row data carries out the displacement action along two pixels of direction DIR1 displacements, and is shown for the even number with reference to image data
Row data carries out next caused along the displacement action of two pixels of direction DIR2 displacements.Similar, in fig. 3 c, correction reference
The correction of image 320 is then to show that row data is carried out along direction DIR1 positions for the even number with reference to image data with reference to image data
The displacement action of two pixels is moved, and shows that row data is carried out along direction DIR2 displacements two for the odd number with reference to image data
Caused by the displacement action of pixel comes.
It is noted that in the present embodiment, the correction with different synchronization delay values can correspond to reference to image
Different reference images.Also, identified to ask convenient, the synchronization delay value with reference to corresponding to image can be designed as being equal to it
Absolute value (image as being designed as " 1 " with reference to image 210, and the image of " 2 " is then designed as with reference to image 310).But refer to
Image may be designed in the form beyond numeral, for example, English alphabet or other recognizable images, different English
Letter or image correspond to different synchronization delay values.
Please referring again to Fig. 1, in the step s 120, display is joined with reference to image data and correction with reference to corresponding to image data
Examine image and correction refers to image.In simple terms, illustrated with Fig. 2A-Fig. 2 B and Fig. 3 A- Fig. 3 C example, will exactly referred to
Image 210, correction with reference to image 220,230, cast out with reference to image 320,330 with reference to image 310 and correction, due to throwing
Image device possessed synchronization delay value in itself, the state of the image being projected out observed may be with set ginseng
Examine image and correction is different with reference to image.Focus on, when projection arrangement possessed synchronization delay value in itself
When 0, it can be visually normal recognizable shadow that there is the correction with projection arrangement identical synchronization delay value, which to refer to image,
Picture, that is to say, that it is identical that the correction visually may appear to corresponding reference image with reference to image.
For example, when possessed synchronization delay value is equal to " -1 " to projection arrangement in itself, corresponding to synchronization delay value
When correction equal to " -1 " is projected out with reference to image 220, it can be visually such as the image with reference to image 210 " 1 ".If
It is projection arrangement when possessed synchronization delay value is equal to "+2 " in itself, the correction that "+2 " are equal to corresponding to synchronization delay value refers to
When image 330 is projected out, it can be visually such as the image with reference to image 310 " 2 ".
On the other hand, when possessed synchronization delay value is equal to 0 to projection arrangement in itself, exist with reference to image 210,310
It can be visually normal image, also illustrate that projection arrangement and need not be corrected.
Based on above-mentioned explanation, in step S130, then it is normal images that selecting reference image and correction, which are referred in image,
Person is derived from choosing the synchronization delay value of image to choose synchronization delay value to choose image, and thus knows projection dress
Synchronization delay value possessed by putting (is equal to and chooses synchronization delay value).Also, in step S140, then foundation, which is chosen, synchronously prolongs
Slow value is corrected to projection arrangement.
Refer to below Fig. 4 A and Fig. 4 B, Fig. 4 A and Fig. 4 B illustrate respectively the embodiment of the present invention reference image and
Embodiment schematic diagram of the correction with reference to the display mode of image.In Figure 4 A, respectively with reference to image REF1-REFN and right respectively
It caused should correct and be shown in jointly on identical display page PG1 with reference to image CREF11-CREFN2.Consequently, it is possible to can be with
For all display shapes that image CREF11-CREFN2 is referred to reference to image REF1-REFN and correction on display page PG1
Condition knows the synchronization delay value of projection arrangement.
Certainly, corrected caused by respectively corresponding to reference to image REF1-REFN and respectively and refer to image CREF11-CREFN2
Can be respectively displayed in the different display pages, for example, with reference to image REF1 and it is corresponding correction with reference to image CREF11,
CREF12 is shown in the single display page, can with reference to image CREF21, CREF22 with reference to image REF2 and corresponding correction
It is shown in another display page, remaining is by that analogy.Or show with a display page and multigroup refer to image and correspondingly
Correction refer to image, as shown in Figure 4 B, shown in Fig. 4 B three groups with reference to image and correction with reference to image in single display page
On face, another display page then shows that different three groups refer to image with reference to image and correction.Multiple displays can also be used in addition
The page shows that single refers to image with reference to image or single correction respectively.In this way, then can be by browsing multiple display pages
The synchronization delay value of projection arrangement is known in face.
Fig. 5 is refer to below, and Fig. 5 illustrates the schematic diagram of the projection arrangement of one embodiment of the invention.Projection arrangement 500 includes
Controller 510 and image projector 520.Wherein, controller 510 and the coupling of the phase of image projector 520, controller 510 are set
Fixed one or more reference image data, and refer to image data for producing multiple corrections with reference to image data.Image is thrown
Emitter 520 then shows that multiple corrections with reference to corresponding to image data refer to shadow with reference to image and correction with reference to corresponding to image data
Picture.
User USR can using the observation of vision come select with reference to image and correction refer to image in be normal images
Person, and this information is informed by controller 510 by the man-machine operation interface on projection arrangement 500.Controller 510 can be by user
The image setting that USR is selected is derived from choosing the synchronization delay value of image to choose synchronization delay value to choose image,
Foundation chooses synchronization delay value to be corrected projection arrangement 500 again.
In addition, under the requirement of automated correction, projection arrangement 500 can also include panadaptor 530.Image receives
Device 530 is coupled to controller 510, and the reference image shown to the pick-up image projector 520 and correction refer to image.It is logical
The mode of image procossing is crossed, controller 510 can be directed to the image that panadaptor 530 is captured and be referred to reference image and correction
Image is compared, and thus finds out normal display and recognizable image.Consequently, it is possible to controller 510 can be found out automatically
Image is chosen, and is derived from choosing the synchronization delay value of image to choose synchronization delay value, then according to choosing synchronization delay value
Projection arrangement 500 is corrected.
On referring to setting and the producing method of image with reference to image and correction, in foregoing multiple embodiments and reality
Apply mode to be all discussed in detail, pardon seldom repeating below.
In summary, the present invention is carried out by the issuable multiple synchronization delay values of projection arrangement institute to reference image
Processing, and thus produce multiple corrections and refer to image.Image will be referred to by projection arrangement and correction projects with reference to image
Come, by judging with reference to image and correction with reference to whichever in image as normal images, then search its corresponding synchronization delay value,
The synchronization delay value of projection arrangement can be learnt.Thus, it is possible to quickly synchronize effectively and for projection arrangement
The corrective action of length of delay, effectively lower the time needed for correction, and improving production efficiency.
Claims (10)
1. a kind of bearing calibration of projection arrangement, including：
Multiple corrections are produced with reference to image data at least one and refer to image data, wherein the multiple correction provides with reference to image
Material corresponds to multiple synchronization delay values respectively, wherein showing that row data is synchronous according to one with reference to multiple odd numbers of image data for this
Length of delay carries out the displacement action of a first direction, and shows row data according to institute with reference to multiple even numbers of image data for this
State the displacement action that synchronization delay value carries out a second direction, come produce to should the correction of synchronization delay value refer to image
Data, wherein, the first direction is opposite with the second direction；
Show that this refers to multiple corrections corresponding to image data with reference to corresponding to image data with reference to image and the multiple correction
With reference to image, wherein the multiple correction corresponds to multiple synchronization delay values respectively with reference to image；
Select it is described with reference to image and the multiple correction to refer in image for normal images person be to choose image, and thus obtain
Must this choose the synchronization delay value of image to choose synchronization delay value for one；And
Synchronization delay value is chosen to be corrected the projection arrangement according to this.
2. the bearing calibration of projection arrangement as claimed in claim 1, the wherein first direction are with the second direction according to corresponding
The sign of each synchronization delay value determine.
3. the bearing calibration of projection arrangement as claimed in claim 1, wherein showing that this refers to shadow with reference to corresponding to image data
As and the multiple correction include with reference to the step of multiple corrections refer to image corresponding to image data：
Show this with reference to image and the multiple correction with reference to image in the single display page or show this with reference to image and
The multiple correction is with reference to image in multiple display pages.
4. the bearing calibration of projection arrangement as claimed in claim 1, wherein selecting described with reference to image and the multiple correction
With reference to being that normal images person is that the step of this chooses image includes in image：
This is compared with reference to image with the multiple correction with reference to image；And
Choose the multiple correction and refer in image and choose image as this with reference to the identical person of image with this.
5. the bearing calibration of projection arrangement as claimed in claim 1, wherein one refers to reference to corresponding two corrections of image data
Image data.
6. a kind of projection arrangement, including：
One controller, produce multiple corrections with reference to image data at least one and refer to image data, the wherein controller is directed to
This shows displacement action of the row data according to one first direction of synchronous length of delay progress with reference to multiple odd numbers of image data, and
For this displacement of the row data according to the synchronization delay value one second direction of progress is shown with reference to multiple even numbers of image data
Action, come produce to should the correction of synchronization delay value refer to image data, wherein, the first direction and the second direction
Conversely；And
One image projector, show that a reference image and the multiple correction with reference to corresponding to image data refer to image data
Corresponding multiple corrections refer to image, wherein the multiple correction corresponds to multiple synchronization delay values respectively with reference to image,
Wherein, it is that normal images person is to choose that the controller setting reference image and the multiple correction, which are referred in image,
Image, and be derived from the synchronization delay value for choosing image and choose synchronization delay value for one, and choose synchronization delay according to this
Value is corrected to the projection arrangement.
7. respectively this is synchronous according to corresponding to the second direction for projection arrangement as claimed in claim 6, the wherein first direction
The sign of length of delay determines.
8. projection arrangement as claimed in claim 6, the wherein image projector show that this refers to image and the multiple correction
Show in the page or show that this refers to image in multiple display pages with reference to image and the multiple correction in single with reference to image
In face.
9. projection arrangement as claimed in claim 6, wherein also including：
One panadaptor, the controller is coupled, the panadaptor receives the reference image and the multiple correction reference
Image is simultaneously sent to the controller, and this is compared the controller with reference to image with the multiple correction with reference to image, and selects
Take the multiple correction to refer in image and choose image as this with reference to the identical person of image with this.
10. projection arrangement as claimed in claim 6, wherein one refers to image data with reference to corresponding two corrections of image data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049618.7A CN104853123B (en) | 2014-02-13 | 2014-02-13 | Projection arrangement and its bearing calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049618.7A CN104853123B (en) | 2014-02-13 | 2014-02-13 | Projection arrangement and its bearing calibration |
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| Publication Number | Publication Date |
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| CN104853123A CN104853123A (en) | 2015-08-19 |
| CN104853123B true CN104853123B (en) | 2017-11-24 |
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| CN201410049618.7A Expired - Fee Related CN104853123B (en) | 2014-02-13 | 2014-02-13 | Projection arrangement and its bearing calibration |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW480362B (en) * | 2000-09-14 | 2002-03-21 | Delta Electronics Inc | Automatic calibration method and device of the projector display |
| WO2007097122A1 (en) * | 2006-02-21 | 2007-08-30 | Matsushita Electric Works, Ltd. | Image display apparatus and image distortion correction method of the same |
| CN101086822A (en) * | 2006-06-09 | 2007-12-12 | 中华映管股份有限公司 | Rear projection display and its image correction circuit and method |
| CN102183870A (en) * | 2011-04-29 | 2011-09-14 | 广州视声电子科技有限公司 | Method and system for correcting distorted projector image and projector |
| CN102316295A (en) * | 2010-07-08 | 2012-01-11 | 鸿富锦精密工业（深圳）有限公司 | Projector, and correction device and correction method thereof |
-
2014
- 2014-02-13 CN CN201410049618.7A patent/CN104853123B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW480362B (en) * | 2000-09-14 | 2002-03-21 | Delta Electronics Inc | Automatic calibration method and device of the projector display |
| WO2007097122A1 (en) * | 2006-02-21 | 2007-08-30 | Matsushita Electric Works, Ltd. | Image display apparatus and image distortion correction method of the same |
| CN101086822A (en) * | 2006-06-09 | 2007-12-12 | 中华映管股份有限公司 | Rear projection display and its image correction circuit and method |
| CN102316295A (en) * | 2010-07-08 | 2012-01-11 | 鸿富锦精密工业（深圳）有限公司 | Projector, and correction device and correction method thereof |
| CN102183870A (en) * | 2011-04-29 | 2011-09-14 | 广州视声电子科技有限公司 | Method and system for correcting distorted projector image and projector |
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| CN104853123A (en) | 2015-08-19 |
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