CN106910456A - Display screen bearing calibration and device - Google Patents
Display screen bearing calibration and device Download PDFInfo
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- CN106910456A CN106910456A CN201710258666.0A CN201710258666A CN106910456A CN 106910456 A CN106910456 A CN 106910456A CN 201710258666 A CN201710258666 A CN 201710258666A CN 106910456 A CN106910456 A CN 106910456A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
The embodiment of the present invention proposes a kind of display screen bearing calibration and device, its snap shot information for obtaining display screen, determined not taking out the positional information of lamp point according to snap shot information, gather the bright chroma information that lamp point is not taken out described in the image acquisition that the display screen shows, according to the positional information for not taking out lamp point and the bright chroma information for not taking out lamp point, it is calculated that correspondence is described not to take out lamp point and the display screen has taken out the target correction coefficient of lamp point, and the transmission target correction coefficient is to the display screen.Therefore the embodiment of the present invention can realize the brightness or bright chroma correction of snap shot display screen.
Description
Technical field
The present invention relates to show alignment technique field, more particularly to a kind of display screen bearing calibration and a kind of display screen school
Equipment.
Background technology
When LED display is used for super large screen occasion, such as canopy of the heavens (clearly indicates big resolution ratio to expand resolution ratio
Image), the part LED point on display screen can be taken away part LED point, but configuration display by some producers with certain rule
Still configured by the resolution ratio do not taken away before the LED point of part during screen, such as in display screen column direction according to every 4 LEDs point
Take out 3 LED points, it is not phase that the LED that timing is lighted in this case is counted out and counted out with the LED of correction coefficient
Deng, the LED display after snap shot can be referred to as snap shot LED display.
The correction if LED according to actually lighting is counted out, coefficient is not corresponded to after the correction coefficient of generation uploads to hardware；
If the resolution ratio according to configuration is corrected, there is missing obtaining when each LED lights chrominance information, it is impossible to normal to cover correction stream
Journey.
The content of the invention
Therefore, the embodiment of the present invention provides a kind of display screen bearing calibration and a kind of display screen means for correcting, solves nothing
Method carries out the problem of correct correction to snap shot display screen.
On the one hand, a kind of display screen bearing calibration is provided, including：Obtain the snap shot information of display screen；Believed according to snap shot
Breath determines not taking out the positional information of lamp point；Gather the bright chroma letter that lamp point is not taken out described in the image acquisition that the display screen shows
Breath；According to the positional information for not taking out lamp point and the bright chroma information for not taking out lamp point, it is calculated described in correspondence and does not take out
Lamp point and the display screen have taken out the target correction coefficient of lamp point；And send the target correction coefficient to the display screen.
On the other hand, there is provided a kind of display screen means for correcting, including：Acquisition module, the snap shot for obtaining display screen
Information；Position determination module, for being determined not taking out the positional information of lamp point according to snap shot information；Acquisition module, for gathering
State the bright chroma information that lamp point is not taken out described in the image acquisition that display screen shows；Correction coefficient generation module, for according to described
The positional information of lamp point and the bright chroma information for not taking out lamp point are not taken out, is calculated that correspondence is described not to take out lamp point and described show
Display screen has taken out the target correction coefficient of lamp point；And sending module, for sending the target correction coefficient to the display screen.
A technical scheme in above-mentioned technical proposal has the following advantages that or beneficial effect：By obtaining taking out for display screen
Point information obtains the bright chroma information for not taking out lamp point to determine not take out the positional information of lamp point and gather the image of display, it is laggard
Row Data-parallel language with obtain correspondence do not take out lamp point and taken out lamp point target correction coefficient and transmission to display screen, such that it is able to protect
The correction coefficient for demonstrate,proving generation is realized correctly, non-point-to-point correction being realized in the case of snap shot shows on hardware.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, can also obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of module diagram of display screen means for correcting of offer in the embodiment of the present invention；
Fig. 2 is the module diagram of another display screen means for correcting of offer in the embodiment of the present invention；
Fig. 3 is the module diagram of another display screen means for correcting of offer in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Specifically, the embodiment of the present invention is proposed a kind of for the problem that snap shot LED display cannot be corrected in the prior art
Display screen bearing calibration, this kind of bearing calibration can be when each regional correction to be corrected starts, according to the position in region to be corrected
Put and snap shot information, calculate the positional information for not taking out lamp point, then gather, extract light tone angle value, afterwards further according to not taking out
The data (including positional information and bright chroma information) that the positional information polishing of lamp point has taken out lamp point calculate correction coefficient afterwards；Or
Correction coefficient is calculated after collection, extraction light tone angle value, finally according to the positional information polishing correction coefficient for not taking out lamp point.Herein,
For snap shot display screen, its configuration resolution ratio is more than screen body true resolution.
For ease of understanding the present invention, display screen of the invention is corrected below in conjunction with first embodiment and second embodiment
Method is described in detail.
【First embodiment】
(S11) it is input into the snap shot information of snap shot display screen；
(S12) region to be corrected is selected as current correction region；It is understood that what is selected is to be corrected herein
Region can be that the part viewing area (correspondence Subarea calibration), or whole viewing areas of snap shot display screen are (corresponding complete
Screen correction)；
(S13) calculate the position for not taking out lamp point in current correction region and preserve；
(S14) using area array cameras collection current correction region according to preset order show it is red, green, blue etc. pure
Color image is obtaining correction image；
(S15) image procossing is carried out with image to the correction (for example with existing ripe zone location and point location
Etc. technology) extracting positional information and bright chroma information that correspondence in correction image does not take out lamp point；
(S16) positional information and bright chroma information for not taking out lamp point according to the correspondence extracted calculate current correction region not
Take out correction coefficient such as brightness or the bright chroma correction coefficient of lamp point；
(S17) the position polishing for not taking out lamp point according to current correction region has taken out the correction coefficient of lamp point and has combined step
(S16) correction coefficient for not taking out lamp point for obtaining is obtaining the target correction coefficient in current correction region；
(S18) target correction coefficient to the hardware such as band of snap shot display screen for sending current correction region carries described current
The receiving card of correcting area is stored；
(S19) repeat step (S12) is to step (S18), until the regional correction all to be corrected of snap shot display screen is completed.
Hold above-mentioned, the snap shot information in step (S11) is, for example,：Taken out on m-1 rows, line direction in every m rows on column direction
N-1 row are taken out in row per n and the jth row in the i-th row, n row that the position of lamp point belongs in m rows are not taken out, such as column direction is
A line is taken out in every two row, three row are taken out in every four row on line direction；Relative to the whole screen upper left corner, the first lamp point lighted is
Top left corner apex, then m=2, n=4, i=1, j=1.It is of course also possible to snap shot only is carried out in column direction or line direction, for example,
Every two row only in a column direction takes out a line, or takes out three row in every four row only in the row direction.
The mode of the positional information that lamp point is not taken out in calculating is, for example, in step (S13)：General region to be corrected is a square
Shape region, such as the starting position coordinates in region to be corrected are (x0, y0), width is W and height is H, it is assumed that x0=34, y0=
33rd, W=80 and H=80；Then herein in region to be corrected, first row does not take out the position coordinates of lamp point for x0 takes the remainder divided by n：34
It is 2 to be taken the remainder divided by 4, and the first row does not take out the position coordinates of lamp point for y0 takes the remainder divided by m：33 to be taken the remainder divided by 2 be 1；Then should
The first row, first row do not take out lamp point for (2,1) in region to be corrected, find after the first row, first row do not take out lamp point, and remaining is not
Take out lamp point is directly increased on this coordinate with the integral multiple of m, n, such as (6,1), (10,1) ..., until exceeding the region to be corrected
Scope untill.
The positional information polishing for not taking out lamp point in step (S17) according to current correction region has taken out the correction coefficient of lamp point
Mode be, for example,：Configuration resolution ratio according to snap shot display screen enters portable lighter point traversal to current correction region, if current time
To have taken out lamp point, then its correction coefficient is entered as default value such as 1 or other constants to the lamp point gone through, if the lamp point of current traversal
Not take out lamp point, then the correction coefficient calculated in step (S16) is used.
【Second embodiment】
(S21) the snap shot information of snap shot display screen is input into, specific snap shot information can same aforementioned first embodiment；
(S22) region to be corrected is selected as current correction region；It is understood that what is selected is to be corrected herein
Region can be that the part viewing area (correspondence Subarea calibration), or whole viewing areas of snap shot display screen are (corresponding complete
Screen correction)；
(S23) calculate the position for not taking out lamp point in current correction region and preserve, specific calculation can be with foregoing first
Embodiment；
(S24) using area array cameras collection current correction region according to preset order show it is red, green, blue etc. pure
Color image is obtaining correction image；
(S25) image procossing is carried out with image to the correction (for example with existing ripe zone location and point location
Etc. technology) extracting positional information and bright chroma information that correspondence in correction image does not take out lamp point；
(S26) positional information and bright chroma information of lamp point have been taken out according to the position polishing correspondence for not taking out lamp point and combination is right
The positional information and bright chroma information of lamp point should not taken out and do not taken out lamp point and taken out the positional information of lamp point to obtain correspondence after polishing
With bright chroma information；
(S27) lamp point is not taken out according to correspondence after polishing and has taken out the current school of positional information and bright chroma information calculating of lamp point
Such as brightness of the correction coefficient of positive region or bright chroma correction coefficient as current correction region target correction coefficient；
(S28) target correction coefficient to the hardware such as band of snap shot display screen for sending current correction region carries described current
The receiving card of correcting area；
(S29) repeat step (S22) is to step (S28), until the regional correction all to be corrected of snap shot display screen is completed.
Hold above-mentioned, corresponded in correction image according to the positional information polishing for not taking out lamp point in step (S26) and taken out lamp
The positional information of point and the mode of bright chroma information are, for example,：
A) positional information：After not taking out the position determination of lamp point, its center position can be further calculated, according to two phases
Neighbour does not take out the center point coordinate of lamp point and the middle number for having taken out lamp point, extrapolate the middle centre coordinate for having taken out lamp point, it is necessary to
Carried out from line direction and column direction respectively；
Such as, it is x1, x2 that the first row does not take out the first row of lamp point and the column direction center point coordinate of secondary series, does not take out lamp point
First row and secondary series in be spaced (n-1)=3 and taken out lamp point, these three center point range coordinates for having taken out lamp point are respectively
x1+(x2-x1)/4、x1+(x2-x1)/4*2、x1+(x2-x1)/4*3；
B) bright chroma information：Generally, certain angle is all carried when gathering image, along with display screen in itself
Characteristic, all correcting process can be done after extracting brightness to brightness, in order to not influence the situation of change of overall brightness, taken out the bright of lamp point
Chromatic value can be obtained using the closest light tone angle value for not taking out lamp point by replica method, the method for average or linear interpolation method,
Namely the adjacent bright chroma information for not taking out lamp point of lamp point has been taken out according to the positional information for having taken out lamp point and with described, obtain described
The bright chroma letter of lamp point is taken out.
In sum, the embodiment of the present invention has taken out the position of lamp point according to the snap shot rule polishing correspondence in current correction region
Information and bright chroma information or polishing have taken out the correction coefficient of lamp point, it is ensured that the correction coefficient of generation is realized just on hardware
Really, so as to non-point-to-point correction can be realized in the case of snap shot shows.
In addition, a kind of display screen means for correcting 10 proposed referring to Fig. 1, the embodiment of the present invention, including：Acquisition module 11,
Position determination module 12, acquisition module 13, correction coefficient generation module 14 and sending module 15.
Wherein, acquisition module 11 is used to obtain the snap shot information of display screen；Position determination module 12 is used to be believed according to snap shot
Breath determines not taking out the positional information of lamp point, concretely：Starting position coordinates, width, height according to current correction region and
The snap shot information determines the positional information for not taking out lamp point；Acquisition module 13 is used to gather the figure that the display screen shows
The bright chroma information of lamp point is not taken out as described in obtaining, concretely：Gather the multiple that the display screen shows according to preset order
The solid-color image of different colours；Correction coefficient generation module 14 is used to not take out the positional information of lamp point according to and described does not take out
The bright chroma information of lamp point, is calculated described in correspondence and does not take out lamp point and the display screen has taken out the target correction coefficient of lamp point；
And sending module 15 is used to send the target correction coefficient to the display screen.As for the specific work(of modules 11-15
Energy details then may be referred to content described in aforementioned first embodiment and second embodiment, therefore will not be repeated here.
In other embodiments, as described in Figure 2, correction coefficient generation module 14 further includes computing module 141 and polishing
Module 143.Wherein, computing module 141 is used to not taken out according to the positional information and the bright chroma for not taking out lamp point of lamp point
Information draws the correction coefficient for not taking out lamp point；Polishing module 143 is used to not taken out according to the positional information traversal of lamp point
The display screen, if its correction coefficient is entered as default value such as 1 or other are normal by the lamp point of current traversal to have taken out lamp point
Number.
In another other embodiments, as shown in figure 3, correction coefficient generation module 14 can further include polishing module
145 and computing module 147.Wherein, polishing module 145 is used to not take out the positional information of lamp point according to and described does not take out lamp point
Bright chroma information polishing taken out the positional information of lamp point and do not taken out the bright chroma information of lamp point；Concretely：According to two phases
Neighbour does not take out the positional information of lamp point and positioned at the number for having taken out lamp point between the two, draws the position for having taken out lamp point between the two
Confidence ceases；And believe according to the positional information for having taken out lamp point and with the adjacent bright chroma for not taking out lamp point of lamp point of having taken out
Breath, obtains the bright chroma information for having taken out lamp point.Computing module 147 be used for according to the bright chroma information for not taking out lamp point with
The bright chroma information for having taken out lamp point of polishing obtains the target correction coefficient.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Divide, only a kind of division of logic function can have other dividing mode, such as multichannel unit or component when actually realizing
Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multichannel
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds the form of SFU software functional unit to realize.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can store and be deposited in an embodied on computer readable
In storage media.Above-mentioned SFU software functional unit storage is in a storage medium, including some instructions are used to so that a computer
Equipment (can be personal computer, server, or network equipment etc.) performs the portion of each embodiment methods described of the invention
Step by step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (Read-Only Memory, abbreviation
ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various can store
The medium of program code.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (13)
1. a kind of display screen bearing calibration, it is characterised in that including：
Obtain the snap shot information of display screen；
Determined not taking out the positional information of lamp point according to snap shot information；
Gather the bright chroma information that lamp point is not taken out described in the image acquisition that the display screen shows；
According to the positional information for not taking out lamp point and the bright chroma information for not taking out lamp point, it is calculated described in correspondence and does not take out
Lamp point and the display screen have taken out the target correction coefficient of lamp point；
Send the target correction coefficient to the display screen.
2. display screen bearing calibration as claimed in claim 1, it is characterised in that determined not taking out the position of lamp point according to snap shot information
Confidence breath includes：Starting position coordinates, width, height and the snap shot information according to current correction region determine described in not
Take out the positional information of lamp point.
3. display screen bearing calibration as claimed in claim 1, it is characterised in that the image that the collection display screen shows is obtained
The bright chroma information for not taking out lamp point includes：Gather the pure of multiple different colours that the display screen shows according to preset order
Color image.
4. display screen bearing calibration as claimed in claim 1, it is characterised in that the target correction coefficient is gamma correction system
Number or bright chroma correction coefficient.
5. display screen bearing calibration as claimed in claim 1, it is characterised in that the position letter of lamp point is not taken out described in the basis
Breath and the bright chroma information for not taking out lamp point, are calculated described in correspondence and do not take out lamp point and the display screen has taken out the mesh of lamp point
Calibration positive coefficient includes：
The school of lamp point is not taken out according to the positional information for not taking out lamp point and the bright chroma information for not taking out lamp point draw
Positive coefficient；
The display screen is traveled through according to the positional information for not taking out lamp point, if the lamp point of current traversal is to have taken out lamp point, will
Its correction coefficient is entered as default value.
6. display screen bearing calibration as claimed in claim 1, it is characterised in that the position letter of lamp point is not taken out described in the basis
Breath and the bright chroma information for not taking out lamp point, are calculated described in correspondence and do not take out lamp point and the display screen has taken out the mesh of lamp point
Calibration positive coefficient includes：
The position letter of lamp point has been taken out according to the positional information for not taking out lamp point and the bright chroma information polishing for not taking out lamp point
Breath and the bright chroma information for having taken out lamp point；
The bright chroma information for having taken out lamp point according to the bright chroma information for not taking out lamp point and polishing obtains the target correction
Coefficient.
7. display screen bearing calibration as claimed in claim 6, it is characterised in that according to the positional information for not taking out lamp point and
The bright chroma information polishing for not taking out lamp point has taken out the positional information of lamp point and taken out the bright chroma information of lamp point to be included：
According to two adjacent positional informations for not taking out lamp point and positioned at the number for having taken out lamp point between the two, draw between the two
The positional information for having taken out lamp point；
The adjacent bright chroma information for not taking out lamp point of lamp point is taken out according to the positional information for having taken out lamp point and with described, has been obtained
The bright chroma information for having taken out lamp point.
8. a kind of display screen means for correcting, it is characterised in that including：
Acquisition module, the snap shot information for obtaining display screen；
Position determination module, for being determined not taking out the positional information of lamp point according to snap shot information；
Acquisition module, the bright chroma information of lamp point is not taken out for gathering described in the image acquisition that the display screen shows；
Correction coefficient generation module, for not taking out the positional information of lamp point and the bright chroma letter for not taking out lamp point according to
Breath, is calculated described in correspondence and does not take out lamp point and the display screen has taken out the target correction coefficient of lamp point；
Sending module, for sending the target correction coefficient to the display screen.
9. display screen means for correcting as claimed in claim 8, it is characterised in that the position determination module is used for according to current
The starting position coordinates of correcting area, width, height and the snap shot information determine the positional information for not taking out lamp point.
10. display screen means for correcting as claimed in claim 8, it is characterised in that the acquisition module is used to gather described aobvious
The solid-color image of multiple different colours that display screen shows according to preset order.
11. display screen means for correctings as claimed in claim 8, it is characterised in that the correction coefficient generation module includes：
Computing module, for not taking out the positional information of lamp point and described in the bright chroma information for not taking out lamp point draws according to described
The correction coefficient of lamp point is not taken out；
Polishing module, the positional information for not taking out lamp point according to travels through the display screen, if the lamp point of current traversal is
Lamp point is taken out, then its correction coefficient has been entered as default value.
12. display screen means for correctings as claimed in claim 8, it is characterised in that the correction coefficient generation module includes：
Polishing module, for not taking out the positional information of lamp point and the bright chroma information polishing for not taking out lamp point has been taken out according to
The positional information of lamp point and the bright chroma information of lamp point is not taken out；
Computing module, the bright chroma information for having taken out lamp point of bright chroma information and polishing for not taking out lamp point according to is obtained
The target correction coefficient.
13. display screen means for correctings as claimed in claim 12, it is characterised in that the polishing module is used for：
According to two adjacent positional informations for not taking out lamp point and positioned at the number for having taken out lamp point between the two, draw between the two
The positional information for having taken out lamp point；
The adjacent bright chroma information for not taking out lamp point of lamp point is taken out according to the positional information for having taken out lamp point and with described, has been obtained
The bright chroma information for having taken out lamp point.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113496670A (en) * | 2020-03-20 | 2021-10-12 | 西安诺瓦星云科技股份有限公司 | Image processing method, device and system |
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| KR20140129727A (en) * | 2013-04-30 | 2014-11-07 | 엘지디스플레이 주식회사 | Apparatus and Method for Generating of Luminance Correction Data |
| CN103413499A (en) * | 2013-08-07 | 2013-11-27 | 深圳市大象视界科技有限公司 | LED display screen |
| CN105632349A (en) * | 2014-10-27 | 2016-06-01 | 深圳市康硕展电子有限公司 | Method, device and system for managing play of LED spherical display screen |
| CN106205463A (en) * | 2015-05-06 | 2016-12-07 | 深圳市立鼎光电技术有限公司 | The control system of non-rectangular shape display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113496670A (en) * | 2020-03-20 | 2021-10-12 | 西安诺瓦星云科技股份有限公司 | Image processing method, device and system |
| CN113496670B (en) * | 2020-03-20 | 2022-04-08 | 西安诺瓦星云科技股份有限公司 | Image processing method, device and system |
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