CN101996614A - Full-screen color correction method for LED display and implementation system thereof - Google Patents
Full-screen color correction method for LED display and implementation system thereof Download PDFInfo
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Abstract
The invention provides a full-screen color correction method for an LED display and an implementation system thereof, wherein the system comprises a correcting computer, a camera, an optical tester, an integrating sphere, a display control computer, an LED controller and a scanning control panel, wherein the camera and the optical tester respectively carry out parameter sampling on the partitions and full screen of the LED display, and after correction of brightness and chromaticity on the pixel level and the module level of the partitions and the full screen on the correcting computer, the corrected data are transmitted to the scanning control panel of the LED display and stored. The full-screen color correction method and the implementation system thereof of the invention realize full-screen color correction of the LED display, and overcome the defect that after LED modules are corrected one by one by a conventional discrete correction method, when the time, environment and operation are inconsistent, individual LED modules have brightness or chromatic aberration observable by naked eyes, thereby improving the correction quality and correction efficiency.
Description
Technical field
The present invention relates to the LED display technical field, relate in particular to a kind of full frame color calibration method and realization system thereof of LED display.
Background technology
Because production technology, the LED fluorescent tube exists the inconsistency of brightness and wavelength, and this has caused using the display screen of LED fluorescent tube need carry out color correction.
At present, the color calibration method of LED display is: the LED fluorescent tube of different colours according to brightness and the colourity stepping of going ahead of the rest, is formed LED display with the fluorescent tube of identical class.Or adopt conventional discrete bearing calibration tens of, hundreds of the modules that constitute LED display or red, green, blue, the Bai Sise of modular unit to be taken pictures respectively with camera, and photo is imported the analysis and the homogenising thereof of carrying out brightness in the computing machine handle, data input LED module or module after the processing are stored, so that when LED module or module work, shades of colour is proofreaied and correct in real time.
There is certain defective in said method:
1, owing to will increase the cost of product to the LED fluorescent tube stepping of going ahead of the rest.
2, be one by one to proofreading and correct owing to what adopt at LED module or module, when time, environment and operation inconsistent, have indivedual LED modules or module unavoidably and have observable difference in brightness of naked eyes or aberration, so need carry out secondary or three corrections, increase working strength, reduced correction efficient.
3, also there is certain color error in camera itself, has influence on the color dot calibration result of LED display.
Summary of the invention
For this reason, technical matters to be solved by this invention is: a kind of full frame color calibration method and realization system thereof of LED display are provided, realize the full frame color correction to LED display, to overcome the defective described in the background technology.
So, the invention provides a kind of full frame color calibration method of LED display, this method comprises:
Step 1, determine the required systematic parameter of the full frame color correction of LED display, and LED display is divided into the subregion that is complementary with camera resolution according to the resolution of LED display, subregion is carried out pixel location, camera adjustment, and a selected subregion carries out the crude sampling of required correction parameter;
Step 2, determine correction target parameter and permissible error, and to color correction of subregion work and school post-sampling, through calculation process, if colourity, brightness and colour temperature error are then carried out next step in the correction error allowed band, otherwise, repeat this step, the parameter error after proofreading and correct is in allowed band;
Step 3 is successively carried out Pixel-level, module level brightness and chromaticity correction to each subregion, sends apparent control computer to through the data after will proofreading and correct after the calculation process, sends led controller and LED display to by apparent control computer again;
Step 4, with full frame is unit, to full frame module level brightness and the chromaticity correction of carrying out of LED display, send apparent control computer to through the data after will proofreading and correct after the calculation process, send led controller and LED display to by apparent control computer again, show control computer and preserve described data with document form, LED display is that the unit solidifies the described data that preservation receives with module or module.
Wherein, described in the step 1 subregion is carried out pixel location, camera adjustment, and selectes the crude sampling that a subregion carries out required correction parameter, comprising:
Respectively the brightness and the colourity of redness, green, blueness and the White LED fluorescent tube of each subregion are sampled by optical tester, and select a minimum subregion of brightness as the sampling subregion of determining to proofread and correct index;
Selected subregion is found a view and focus on by camera, and location of pixels is demarcated in image;
By the white standard light source camera being carried out uniform field proofreaies and correct;
Initial parameter before the school of each colour brightness, colourity and the colour temperature of the selected subregion that obtains is charged in the correcting computer;
To demarcations that expose respectively of camera redness, green, blueness and the white required optical filter of sampling and time shutter, so that be complementary with optical tester.
Wherein, the required systematic parameter of the full frame color correction of described LED display comprises: full frame resolution, module resolution, module resolution, pel spacing and pixel red, green and blue LED lamp are from the side-play amount of pixel center point.
Wherein, step 3 comprises:
Each subregion is carried out the equilibrium treatment of sampling of Pixel-level RGB brightness, colorimetric parameter and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Each subregion is carried out the equilibrium treatment of sampling of Pixel-level white brightness and color temperature parameters and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Each subregion is carried out the equilibrium treatment of sampling of module level RGB brightness, colorimetric parameter and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Each subregion is carried out the equilibrium treatment of sampling of module level white brightness and color temperature parameters and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to.
Wherein, step 4 comprises:
With full frame as a whole, adjust the camera focal length and find a view LED display is full frame, be that the unit is demarcated each module in image with the module;
By the white standard light source camera being carried out uniform field proofreaies and correct;
Obtain redness, green, blueness and the white intrinsic brilliance parameter of LED display central area by optical tester;
Sample required optical filter and time shutter of camera exposed and demarcates and brightness calibration so that and optical tester picture coupling;
To full frame equilibrium treatment of carrying out module level RGB brightness, colorimetric parameter sampling and data thereof, with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
To full frame equilibrium treatment of carrying out module level white brightness and color temperature parameters sampling and data thereof, with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Show control computer and preserve described correction data with document form, LED display is that the unit solidifies the described correction data that preservation receives with module or module.
The present invention also provides a kind of system that realizes the full frame color correction of LED display, this system comprises: the correcting computer that is used to control whole corrective system, be connected the camera that is used for the acquisition correction parameter with correcting computer, be connected with correcting computer and be used to obtain the LED display redness, green, the optical tester of blue and white intrinsic brilliance and chroma samples parameter, be used to camera to carry out the integrating sphere that uniform field is proofreaied and correct provides the white standard light source, when carrying out full frame color correction, display screen is used for the apparent control computer that communicates with described correcting computer as the LED display playback equipment, and be used to realize the led controller that LED display and apparent control computer intercom mutually and be used to control the scan control plate that LED display scanning shows, described camera and optical tester are respectively to LED display subregion and the full frame parameter sampling that carries out of LED display, on correcting computer, pass through Pixel-level, behind the module level parameter correction, correction data is sent to described apparent control computer, show control computer and send correction data the scan control plate of LED display to, and preserve by led controller.
Wherein, described correcting computer and apparent control computer are by wired or wireless network transmissions data.
Described correcting computer comprises the following function unit:
Proofread and correct preparatory unit, be used for determining the full frame color correction parameter of LED display;
Division unit is used for the resolution according to LED display, LED display is divided into the subregion that is complementary with camera resolution;
Acquiring unit is used for camera and optical tester by being connected with correcting computer, obtains sampling parameter;
Correcting unit, the sampling parameter that is used for acquiring unit is obtained carries out Pixel-level, module level color correction to each subregion of LED display, the full frame priority of LED display;
Transmitting element is used for the correction data after the correcting unit correction is transferred to apparent control computer.
Wherein, described scan control plate is installed in each module of LED display, on the non-volatile memories body is arranged, be used to store correction data.
Wherein, described correction data, be meant the correction coefficient of each pixel of proofreading and correct the back generation, it constitutes each 3 totally nine coefficient of every kind of color of RGB, the length of each coefficient is 16bit, comprises the 16bit brightness data after the red-correction and redness carried out the 16bit brightness data behind the green and 16bit blue data of the 16bit of colourity compensation, the green correction and green carried out the 16bit brightness data after the 16bit redness of colourity compensation and 16bit blue data, the blue-correction and blueness carried out 16bit green and the 16bit red data that colourity compensates.
The full frame color calibration method of LED display of the present invention and realization system thereof, by each subregion and full frame Pixel-level and the module level parameter correction of carrying out to LED display, proofread and correct the back data and pass to LED display, and the correction of a final proof result is saved on the LED display, realized full frame color correction to LED display, overcome and adopted during classic method proofreaies and correct one by one to LED module or module, work as the time, during environment and operation inconsistent, indivedual LED modules or module exist naked eyes to can be observed the drawback of brightness or aberration, have improved correction mass and efficient.Simultaneously, removed produce before to the LED fluorescent tube stepping operation of going ahead of the rest, reduced cost of products.
Further, proofread and correct, overcome that there is certain color error in camera itself in the prior art, influenced the drawback of the full frame color effects of LED display by camera being carried out uniform field.
The present invention is particularly useful for the color correction of ultrahigh resolution LED display.
Description of drawings
Fig. 1 is the full frame color calibration method schematic flow sheet of the described LED display of the embodiment of the invention;
Fig. 2 is the structural representation of the full frame color corrected system of the described realization LED display of the embodiment of the invention;
Fig. 3 is that the described correcting computer functional unit of the embodiment of the invention constitutes synoptic diagram.
Embodiment
Below, describe the present invention in conjunction with the accompanying drawings.
Present embodiment provides a kind of full frame color calibration method and realization system thereof of LED display, as Fig. 1, Fig. 2 and shown in Figure 3.
Wherein, this method can be divided into three phases, and the phase one is the preparatory stage:
So far, the preparatory stage finishes.Enter subordinate phase below, i.e. the subregion calibration phase:
Step 201, the subregion Pixel-level is once proofreaied and correct and is transmitted.Correcting computer 50 carries out the shooting sampling of Pixel-level RGB brightness and colourity respectively by each subregion of 60 pairs of LED display 40 of camera, (Red is red to the RGB of each each pixel of subregion then, Green is green, Blue indigo plant) data are carried out equilibrium treatment, at the 16bit brightness data after the redness generation correction of each pixel itself, and the green and 16bit blue data of 16bit that redness is carried out the colourity compensation, at the 16bit brightness data after the green generation correction of each pixel itself, and the red and 16bit blue data of 16bit that green is carried out the colourity compensation, at the 16bit brightness data after the blueness generation correction of each pixel itself, and the green and 16bit red data of 16bit that blueness is carried out the colourity compensation, totally nine coefficients, promptly the correction coefficient of each pixel of Sheng Chenging constitutes every look 48bit (i.e. 6 bytes or 3 word lengths), to approach the target correction parameter, and by wired or wireless network, for example wireless network 100 sends to and shows control computer 41, show control computer 41 and send data in the LED display 40 scan control plate 43 by led controller 42 again, the result who proofreaies and correct is shown by LED display;
So far, the subregion calibration phase is finished.Enter the phase III below, promptly full frame calibration phase:
Step 302 is carried out the camera adjustment to full frame.With integrating sphere 80 align cameras 60, and light, the uniform field that 50 pairs of cameras of operation correcting computer 60 carry out after focal length changes is proofreaied and correct, start optical tester 70, by the redness of this optical tester to LED display 40 full frame central areas, green, intrinsic brilliance blue and white is tested, its test value is logged in the correcting computer 50, start camera 60, by this camera respectively to full frame red, green, blue, white is exposed and is demarcated and brightness calibration, required optical filter of all kinds and time shutter when determining full frame color correction so that and optical tester be complementary;
Step 303, full frame module level is once proofreaied and correct and is transmitted.Correcting computer 50 carries out module level RGB brightness and colourity is taken sampling by 60 pairs in camera is full frame, then the RGB data of each module of LED display 40 are carried out equilibrium treatment, proofread and correct subregion brightness and the colourity error that is produced to eliminate each subregion, and by wired or wireless network, for example wireless network 100 sends to and shows control computer 41, show control computer 41 and send data in the LED display 40 scan control plate 43 by led controller 42 again,, the result who proofreaies and correct is shown by LED display;
So far, finish full frame calibration phase.That is, the full frame color correction of LED display is finished.
By the full frame color calibration method of LED display described above, we see, LED display is divided into some subregions, by each subregion and full frame Pixel-level and the module level parameter correction of carrying out to LED display, realized full frame color correction to LED display, overcome in usually adopting the method that LED module or module are proofreaied and correct one by one, when time, environment and operation are inconsistent, there are the observable aberration drawback of naked eyes in indivedual LED modules or module, have improved the quality and the efficient of proofreading and correct.Simultaneously, removed produce before to the LED fluorescent tube stepping operation of going ahead of the rest, reduced cost of products.Further, proofread and correct, overcome that also there is certain color error in camera itself in the prior art, influence the drawback of the full frame color of LED display by camera being carried out uniform field.
Present embodiment also provides a kind of system that realizes the full frame color correction of LED display, and this system comprises: LED display 40, apparent control computer 41, led controller 42, correcting computer 50, camera 60, optical tester 70 and integrating sphere 80.
Led controller 42, it is the control system of LED display 40, it upwards connects and shows control computer 41, connect LED display 40 downwards, its inside is except the demonstration Control Software that LED display is installed, the described LED display color correction software of present embodiment module also is housed, the relay transmission of the switching of communication link and color correction data when being used for color correction.
Correcting computer 50, the color correction that is used for system's control LED display, its inside is equipped with the full frame color correction software of the described LED display of present embodiment, usually, be connected with camera 60, optical tester 70 by USB interface, by wired or wireless network, for example wireless network 100 is connected with apparent control computer 41.
Integrating sphere 80 is a kind of white standard light sources, is used for camera behind conversion aperture or focal length, carries out white calibration, with the heterogeneity that overcomes the camera photosensitive pixel, the decay of lens cosine and vignette to taking the influence of precision.
For realizing the full frame color correction of the described LED display of present embodiment, correcting computer 50 comprises the following function unit:
Proofread and correct preparatory unit 51, be used for determining the full frame color correction parameter of LED display;
Division unit 52 is used for the resolution according to LED display, LED display is divided into the subregion that is complementary with camera resolution;
Acquiring unit 53 is used for camera and optical tester by being connected with correcting computer, obtains sampling parameter;
Correcting unit 54, the sampling parameter that is used for acquiring unit is obtained carries out Pixel-level, module level parameter correction to each subregion of LED display, the full frame priority of LED display;
Transmitting element 55 is used for the correction data after the correcting unit correction is transferred to apparent control computer 41.
In sum, the full frame color calibration method of the described LED display of present embodiment and realization system thereof, by each subregion and full frame Pixel-level and the module level parameter correction of carrying out to LED display, proofread and correct the back data and pass to LED display, and the correction of a final proof result is saved on the LED display, realized full frame color correction to LED display, overcome and adopted during classic method proofreaies and correct one by one to LED module or module, work as the time, during environment and operation inconsistent, indivedual LED modules or module exist naked eyes to can be observed the drawback of brightness and aberration, have improved correction mass and efficient.Simultaneously, removed produce before to the LED fluorescent tube stepping operation of going ahead of the rest, reduced cost of products.
Further, proofread and correct, overcome that also there is certain color error in camera itself in the prior art, influence the drawback of the full frame color of LED display by camera being carried out uniform field.
Present embodiment is particularly useful for the color correction of ultrahigh resolution LED display.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the full frame color calibration method of a LED display is characterized in that, comprising:
Step 1, determine the required systematic parameter of the full frame color correction of LED display, and LED display is divided into the subregion that is complementary with camera resolution according to the resolution of LED display, subregion is carried out pixel location, camera adjustment, and a selected subregion carries out the crude sampling of required correction parameter;
Step 2, determine correction target parameter and permissible error, and to color correction of subregion work and school post-sampling, through calculation process, if colourity, brightness and colour temperature error are then carried out next step in the correction error allowed band, otherwise, repeat this step, the parameter error after proofreading and correct is in allowed band;
Step 3 is successively carried out Pixel-level, module level brightness and chromaticity correction to each subregion, sends apparent control computer to through the data after will proofreading and correct after the calculation process, sends led controller and LED display to by apparent control computer again;
Step 4, with full frame is unit, to full frame module level brightness and the chromaticity correction of carrying out of LED display, send apparent control computer to through the data after will proofreading and correct after the calculation process, send led controller and LED display to by apparent control computer again, show control computer and preserve described data with document form, LED display is that the unit solidifies the described data that preservation receives with module or module.
2. method according to claim 1 is characterized in that, described in the step 1 subregion is carried out pixel location, camera adjustment, and selectes the crude sampling that a subregion carries out required correction parameter, comprising:
Respectively the brightness and the colourity of redness, green, blueness and the White LED fluorescent tube of each subregion are sampled by optical tester, and select a minimum subregion of brightness as the sampling subregion of determining to proofread and correct index;
Selected subregion is found a view and focus on by camera, and location of pixels is demarcated in image;
By the white standard light source camera being carried out uniform field proofreaies and correct;
Initial parameter before the school of each colour brightness, colourity and the colour temperature of the selected subregion that obtains is charged in the correcting computer;
To demarcations that expose respectively of camera redness, green, blueness and the white required optical filter of sampling and time shutter, so that be complementary with optical tester.
3. method according to claim 1, it is characterized in that the required systematic parameter of the full frame color correction of described LED display comprises: full frame resolution, module resolution, module resolution, pel spacing and pixel red, green and blue LED lamp are from the side-play amount of pixel center point.
4. method according to claim 1 is characterized in that step 3 comprises:
Each subregion is carried out the equilibrium treatment of sampling of Pixel-level RGB brightness, colorimetric parameter and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Each subregion is carried out the equilibrium treatment of sampling of Pixel-level white brightness and color temperature parameters and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Each subregion is carried out the equilibrium treatment of sampling of module level RGB brightness, colorimetric parameter and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Each subregion is carried out the equilibrium treatment of sampling of module level white brightness and color temperature parameters and data thereof, and with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to.
5. method according to claim 1 is characterized in that step 4 comprises:
With full frame as a whole, adjust the camera focal length and find a view LED display is full frame, be that the unit is demarcated each module in image with the module;
By the white standard light source camera being carried out uniform field proofreaies and correct;
Obtain redness, green, blueness and the white intrinsic brilliance parameter of LED display central area by optical tester;
Sample required optical filter and time shutter of camera exposed and demarcates and brightness calibration so that and optical tester picture coupling;
To full frame equilibrium treatment of carrying out module level RGB brightness, colorimetric parameter sampling and data thereof, with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
To full frame equilibrium treatment of carrying out module level white brightness and color temperature parameters sampling and data thereof, with the proximity correction target component, and the data after will proofreading and correct send apparent control computer and LED display to;
Show control computer and preserve described correction data with document form, LED display is that the unit solidifies the described correction data that preservation receives with module or module.
6. system that realizes the full frame color correction of LED display, it is characterized in that, comprise: the correcting computer that is used to control whole corrective system, be connected the camera that is used for the acquisition correction parameter with correcting computer, be connected with correcting computer and be used to obtain the LED display redness, green, the optical tester of blue and white intrinsic brilliance and chroma samples parameter, be used to camera to carry out the integrating sphere that uniform field is proofreaied and correct provides the white standard light source, when carrying out full frame color correction, display screen is used for the apparent control computer that communicates with described correcting computer as the LED display playback equipment, and be used to realize the led controller that LED display and apparent control computer intercom mutually and be used to control the scan control plate that LED display scanning shows, described camera and optical tester are respectively to LED display subregion and the full frame parameter sampling that carries out of LED display, on correcting computer, pass through Pixel-level, behind the module level parameter correction, correction data is sent to described apparent control computer, show control computer and send correction data the scan control plate of LED display to, and preserve by led controller.
7. system according to claim 6 is characterized in that, described correcting computer and apparent control computer are by wired or wireless network transmissions data.
8. system according to claim 6 is characterized in that, described correcting computer comprises the following function unit:
Proofread and correct preparatory unit, be used for determining the full frame color correction parameter of LED display;
Division unit is used for the resolution according to LED display, LED display is divided into the subregion that is complementary with camera resolution;
Acquiring unit is used for camera and optical tester by being connected with correcting computer, obtains sampling parameter;
Correcting unit, the sampling parameter that is used for acquiring unit is obtained carries out Pixel-level, module level color correction to each subregion of LED display, the full frame priority of LED display;
Transmitting element is used for the correction data after the correcting unit correction is transferred to apparent control computer.
9. system according to claim 6 is characterized in that, described scan control plate is installed in each module of LED display, on the non-volatile memories body is arranged, be used to store correction data.
10. according to claim 6 and 9 described systems, it is characterized in that, described correction data, be meant the correction coefficient of each pixel of proofreading and correct the back generation, it constitutes each 3 totally nine coefficient of every kind of color of RGB, the length of each coefficient is 16bit, comprises 16bit brightness data after the red-correction and the green and 16bit blue data of 16bit that redness is carried out the colourity compensation, 16bit brightness data behind the green correction and the red and 16bit blue data of 16bit that green is carried out the colourity compensation, 16bit brightness data after the blue-correction and the green and 16bit red data of 16bit that blueness is carried out the colourity compensation.
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| CN112785952A (en) * | 2020-12-29 | 2021-05-11 | 深圳鹏瑞智能科技有限公司 | Detection and correction device and method for display screen with under-screen camera |
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| CN113936580A (en) * | 2021-12-17 | 2022-01-14 | 深圳精智达技术股份有限公司 | Display screen brightness measurement model generation method and related device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030067587A1 (en) * | 2000-06-09 | 2003-04-10 | Masami Yamasaki | Multi-projection image display device |
| CN1972410A (en) * | 2005-11-24 | 2007-05-30 | 捷扬光电股份有限公司 | Adjustment apparatus and method for brightness of TV wall |
| CN101076128A (en) * | 2007-06-05 | 2007-11-21 | 广东威创日新电子有限公司 | Method and apparatus for correcting multi-screen connected wall |
| CN101217022A (en) * | 2008-01-04 | 2008-07-09 | 深圳市奥拓电子有限公司 | A LED display screen display calibration system and calibration method |
| CN101441853A (en) * | 2008-12-22 | 2009-05-27 | 北京巨数数字技术开发有限公司 | Apparatus, system and method for on-site adjustment of LED display screen |
-
2009
- 2009-08-25 CN CN200910189642.XA patent/CN101996614B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030067587A1 (en) * | 2000-06-09 | 2003-04-10 | Masami Yamasaki | Multi-projection image display device |
| CN1972410A (en) * | 2005-11-24 | 2007-05-30 | 捷扬光电股份有限公司 | Adjustment apparatus and method for brightness of TV wall |
| CN101076128A (en) * | 2007-06-05 | 2007-11-21 | 广东威创日新电子有限公司 | Method and apparatus for correcting multi-screen connected wall |
| CN101217022A (en) * | 2008-01-04 | 2008-07-09 | 深圳市奥拓电子有限公司 | A LED display screen display calibration system and calibration method |
| CN101441853A (en) * | 2008-12-22 | 2009-05-27 | 北京巨数数字技术开发有限公司 | Apparatus, system and method for on-site adjustment of LED display screen |
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