CN102768816B - LED display automated correction method - Google Patents
LED display automated correction method Download PDFInfo
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- CN102768816B CN102768816B CN201210268833.7A CN201210268833A CN102768816B CN 102768816 B CN102768816 B CN 102768816B CN 201210268833 A CN201210268833 A CN 201210268833A CN 102768816 B CN102768816 B CN 102768816B
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Abstract
The invention provides a kind of LED display automated correction method.This automated correction method, the main link that performs has: (1) builds network and connects; (2) A end transmission idsplay order is held to B, and B end controls the full frame or specified partition display image of LED display; (3) A end controls the region to be corrected that image capture device aims at LED display, acquisition of image data and be uploaded to A end carry out analyzing and processing, generate correction coefficient, the controller held by B send correction coefficient to the receiving card of LED display, the full frame or appointed area image after making LED display demonstrate correction; (5) image capture device gathers image to this region to be corrected again, and the bright chroma that A end carries out pointwise is analyzed, and judges whether calibration result is satisfied with.Adopt bearing calibration of the present invention, improve the accuracy of correction, effectively save manpower, reduce correction time.
Description
Technical field
The present invention relates to LED display pointwise correction field, be specifically related to a kind of LED display bearing calibration.
Background technology
LED display pointwise correction function plays important effect to LED display later maintenance, can significantly improve the bright chroma homogeneity of display screen.LED display is in correcting process, more because relating to link, needs a large amount of information interactions and compounding practice, and whole flow process can need at least 2 or more staff to complete correction work.
In general, correction can be divided into 3 steps:
Image capture device is used to measure LED display appointed area.In this link, slip-stick artist needs to operate in pulpit, by computer terminal control software design connection control device, allows LED display display specify image or subregion.Another slip-stick artist then controls image capture device and takes pictures before needing the computer held in correction, and image capture device measurement data can forward on computing machine by USB data line or other transmission mediums, for later stage correction software analysis of image data is prepared;
Analysis of image data, calculating correction coefficient.Correction software carries out LED luminance colorimetric analysis by the view data be loaded into; After analysis, calculate the correction coefficient of every LEDs according to the difference between LED bright chroma and standard value.
Coefficient is uploaded, and checks calibration result.In this link, a slip-stick artist carries out calculating LED pointwise correction coefficient at correction end, the slip-stick artist of pulpit end is submitted to by USB flash disk or other storage mediums, coefficient is uploaded to display screen by control software design by this slip-stick artist again, and picture after controlling the corresponding correction of large-size screen monitors display, at this moment the slip-stick artist correcting end can check calibration result, if wrong, will repeat above 1-3 step until calibration result is good.
As can be seen here, scene at least needs to carry out the exchange of data, the interchange of information between two slip-stick artists, between the two at a distance of often beyond rice up to a hundred, the 3rd slip-stick artist also may be needed to transmit the data of copy.The Obtaining Accurate of information and transmission, understanding and judgement just seem particularly important.Conventional correction flow process is very complicated, needs a large amount of operations between links, and one of them step misoperation, correction work will be caused not complete.Therefore, traditional bearing calibration operation link is too much, fault rate is large, and needs to carry out long information interchange between different personnel, may misunderstand and judge by accident, needs a large amount of repetition to link up, causes the waste of human resources, to correct efficiency lower.
Summary of the invention
The invention provides a kind of LED display automated correction method, with improve correction accuracy, effectively save manpower, reduction correction time.
For realizing above goal of the invention, the invention provides following technical scheme:
A kind of LED display automated correction method, comprises following execution link:
(1) build network to connect
Computer terminal corrective system is A end, and computer terminal LED display control system is B end, builds to realize the mutual network of AB two ends instruction and data and connects; And being provided with image capture device, image capture device holds the region to be corrected controlled in order to aim at LED display to gather image by A;
(2) A end is held to B by described network connection transmission idsplay order, and according to this idsplay order, B end controls the full frame or specified partition display image of LED display;
(3) A end controls the region to be corrected that image capture device aims at LED display, and acquisition of image data is also uploaded to A end, at A end to the data analysis process of uploading, generates correction coefficient;
(4) correction coefficient generated by A end is transferred to B end by described network connection; After B termination receives correction coefficient, the controller held by B send correction coefficient to the receiving card of LED display, the full frame or appointed area image after making LED display demonstrate correction;
(5) image capture device gathers image to this region to be corrected again, and view data is also uploaded to A end, analyzes, judge whether calibration result is satisfied with at A end to the bright chroma that LED display carries out pointwise;
If not, then to this region to be corrected repeated execution of steps (3) to (5), until whether calibration result is satisfied with;
If so, then continue to perform according to step (2) to (5), carry out the correction of next specified partition;
(6) automated correction work is completed.
Based on above-mentioned basic technical scheme, following optimization can also be had to limit scheme:
Above-mentioned correction coefficient corresponds at least one in each LED lamp brightness, colourity.
Above-mentioned network connects can adopt wireless network, and such whole system does not limit by occasion.Certainly, also cable network can be adopted.
The control module of image capture device is had, to realize the automatic control of image capture device in the exploitation of A end; B holds exploitation to have LED large-size screen monitors display control module, to realize the display and control of LED large screen display region, picture material, brightness, color and the function that automatically regulates LED luminance to control according to correction coefficient.
The present invention has the following advantages:
Adopt bearing calibration of the present invention, a slip-stick artist just can complete the corrective maintenance work of whole display screen, conventional correction methods is replaced to need one man operation image capture device and corrective system, the complex process of one man operation control system in addition, controller and LED display, improve the accuracy of correction, effectively save manpower, reduce correction time; Meanwhile, decrease the information communication process between different personnel, avoid misunderstanding and erroneous judgement that field data causes in transmittance process between personnel, decrease repeated work.
The present invention reduces operation link, set up a central hub, links can be made to be concatenated automatic operation.
The present invention, by wireless way for transmitting (network connection), does not limit by occasion.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present invention;
Fig. 2 is automated correction schematic flow sheet of the present invention.
Embodiment
As shown in Figure 1, the system architecture of LED of the present invention is primarily of computer terminal LED display corrective system (A end) and computer terminal LED display control system (B end) composition of setting up network connection (LAN (Local Area Network) for wireless), image capture device (can preferably slr camera) is provided with at LED display scene, camera lens points to LED display, it is full frame that camera lens covers LED, and can aim at a certain subregion of LED display as required.Image capture device can gather the image information of LED display in high quality, corrective system is sent to by USB data line, the correction coefficient calculating gained is connected the control system sending to LED display by the correction coefficient computing module in corrective system by network, thus regulate the configuration parameter of LED display, complete the correction to LED display.
As shown in Figure 2, LED display automated correction method specifically comprises following execution link:
(1) build network to connect
Computer terminal corrective system is A end, and computer terminal LED display control system is B end, builds to realize the mutual network of AB two ends instruction and data and connects; And being provided with image capture device, image capture device holds the region to be corrected controlled in order to aim at LED display to gather image by A;
The control module of image capture device is had, to realize the automatic control of image capture device in the exploitation of A end; B holds exploitation to have LED large-size screen monitors display control module, to realize the display and control of LED large screen display region, picture material, brightness, color and the function that automatically regulates LED luminance to control according to correction coefficient.
(2) A end is held to B by described network connection transmission idsplay order, and according to this idsplay order, B end controls the full frame or specified partition display image of LED display.
(3) A end controls the region to be corrected that image capture device aims at LED display, and acquisition of image data is also uploaded to A end, at A end to the data analysis process of uploading, generates correction coefficient; Correction coefficient corresponds to each LED lamp brightness or colourity, or comprises brightness correction coefficients and chromaticity correction coefficient.
(4) correction coefficient generated by A end is transferred to B end by described network connection; After B termination receives correction coefficient, the controller held by B send correction coefficient to the receiving card of LED display, the full frame or appointed area image after making LED display demonstrate correction.
(5) image capture device gathers image to this region to be corrected again, view data is also uploaded to A end, at A end, the bright chroma that LED display carries out pointwise is analyzed, judge whether calibration result is satisfied with (if bright chroma consistance well, illustrates that calibration result is good);
If not, then to this region to be corrected repeated execution of steps (3) to (5), until whether calibration result is satisfied with;
If so, then continue to perform according to step (2) to (5), carry out the correction of next specified partition.
(6) automated correction work is completed.
The concrete control method that above specific embodiment and accompanying drawing thereof provide and operation example only as a kind of preferred embodiment of the present invention, and should not be considered as limiting the scope of the invention.Based on control program of the present invention, those skilled in the art, according to demand for control, obviously by conventional software design patterns, concrete control flow and mode of operation can be done some adjustment, reach technique effect of the present invention.
Claims (4)
1.LED display screen automated correction method, comprises following execution link:
(1) build network to connect
Computer terminal corrective system is A end, and computer terminal LED display control system is B end, builds to realize the mutual network join domain of AB two ends instruction and data; And image capture device is set, the camera lens covering LED of image capture device is full frame, and image capture device holds the region to be corrected controlled in order to aim at LED display to gather image by A;
(2) A end is held to B by described network connection transmission idsplay order, and according to this idsplay order, B end controls the full screen display image of LED display;
(3) A end controls image capture device aims at LED display region to be corrected when full screen display image, and acquisition of image data is also uploaded to A end, at A end to the data analysis process of uploading, generates correction coefficient;
(4) correction coefficient that A end generates is transferred to B end by the connection of described network; After B termination receives correction coefficient, the controller held by B send correction coefficient to the receiving card of LED display, the full-screen image after making LED display demonstrate correction;
(5) A end controls image capture device and again gathers image to this region to be corrected, and view data is uploaded to A end, at A end, LED display is carried out to the bright chroma analysis of pointwise, judges whether calibration result is satisfied with;
If not, then to this region to be corrected repeated execution of steps (3) to (5), until calibration result is satisfied;
If so, then continue to perform according to step (2) to (5), carry out the correction of next specified partition;
(6) automated correction work is completed.
2. LED display automated correction method according to claim 1, is characterized in that: described correction coefficient corresponds at least one in each LED lamp brightness, colourity.
3. LED display automated correction method according to claim 1, is characterized in that: described network connects employing wireless network.
4. according to the arbitrary described LED display automated correction method of claim 1-3, it is characterized in that: the control module having image capture device in the exploitation of A end, to realize the automatic control of image capture device; B holds exploitation to have LED large-size screen monitors display control module, to realize the display and control of LED large screen display region, picture material, brightness, color and the function that automatically regulates LED luminance to control according to correction coefficient.
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| CN103778887B (en) * | 2013-03-21 | 2016-05-18 | 西安电子科技大学 | The brightness correcting method of LED display unit and device |
| CN103413527A (en) * | 2013-08-19 | 2013-11-27 | 西安诺瓦电子科技有限公司 | Image acquisition method and display method for LED display screen correction |
| CN104485068B (en) * | 2014-12-02 | 2017-02-01 | 西安诺瓦电子科技有限公司 | Luminance-chrominance correction method and system of LED (Light Emitting Diode) display screen |
| CN104915922B (en) * | 2015-06-25 | 2018-01-12 | 西安诺瓦电子科技有限公司 | Splice bright concealed wire modification method |
| CN106328030B (en) * | 2015-07-06 | 2020-10-30 | 力领科技股份有限公司 | Correction method and display device |
| CN105047136B (en) * | 2015-08-25 | 2017-10-13 | 西安诺瓦电子科技有限公司 | LED display uniformity correcting method |
| CN106652898B (en) * | 2017-02-14 | 2019-05-17 | 西安诺瓦电子科技有限公司 | LED shows pointwise correction method |
| CN107271145B (en) * | 2017-05-19 | 2020-09-18 | 西安诺瓦星云科技股份有限公司 | Detection method and system of display unit |
| WO2019163485A1 (en) * | 2018-02-23 | 2019-08-29 | ソニーセミコンダクタソリューションズ株式会社 | Display device, method for driving display device, and electronic equipment |
| CN110930932B (en) * | 2018-09-03 | 2021-01-01 | 西安诺瓦星云科技股份有限公司 | Display screen correction method and system |
| CN111640391A (en) * | 2019-03-01 | 2020-09-08 | 杭州海康威视数字技术股份有限公司 | Display screen display adjusting method and system |
| CN110728947B (en) * | 2019-09-21 | 2021-10-26 | 深圳市奥拓电子股份有限公司 | LED display screen correction method, system and machine-readable storage medium |
| CN113380181B (en) * | 2020-02-25 | 2023-12-05 | 西安诺瓦星云科技股份有限公司 | Display screen correction system |
| CN113470563A (en) * | 2020-03-13 | 2021-10-01 | 西安诺瓦星云科技股份有限公司 | Display screen correction system and method |
| CN112489593B (en) * | 2020-12-29 | 2022-02-08 | 卡莱特云科技股份有限公司 | Seamless splicing correction method and device for LED display screen |
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 Qinfengge D District 401, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |