LED screen correction image acquisition method, correction method, acquisition device and correction system

A technology for correcting images and LED screens, applied to instruments, static indicators, etc., can solve problems such as peripheral out-of-focus, inaccurate data, and impact on collection efficiency, so as to solve peripheral out-of-focus and distortion, ensure the correction effect, and improve the image The effect of collection efficiency
CN113257181AActive Publication Date: 2021-08-13SHENZHEN LIDING PHOTOELECTRIC TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN LIDING PHOTOELECTRIC TECH
Publication Date
2021-08-13

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Abstract

The invention relates to the technical field of LED display, and particularly discloses an LED screen correction image acquisition method, correction method, acquisition device and correction system. The acquisition method comprises the steps: calculating the target acquisition width and height range of a camera; generating a plurality of lamp point lightening schemes according to the lamp point spacing of the LED display screen, the target acquisition width and height range and a preset lamp point spacing strategy; generating corresponding display control information and shooting control information according to each lamp point lightening scheme; and obtaining correction images shot by the camera under the different shooting control information on the LED display screen under the different display control information, and the like. On the basis of meeting the data precision requirement, the correction images as few as possible are obtained, the image acquisition efficiency is improved, the CMOS pixels can be fully paved by the obtained correction images as much as possible, the problems of peripheral defocus, distortion and the like of the correction images in the prior art are solved, and the subsequent correction effect on the LED display screen is ensured.
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Description

technical field

[0001] The present invention relates to the technical field of LED screen calibration, in particular to a method for collecting calibration images of LED screens, a calibration method, a collection device and a calibration system. Background technique

[0002] The equipment that must be used in the calibration process of the LED display is various types of cameras and various lenses that match the cameras. The host computer obtains the correction pictures through the cameras with the lenses, and calculates the correction coefficient through the correction pictures.

[0003] However, since each lens has its own optimal magnification range, if the actual magnification of the lens is not within the optimal magnification range of the lens in actual use, the corrected image collected by the lens will appear out of focus As well as the problem of distortion, the data collected during the calibration process is inaccurate, which in turn affects the calibration effec...

Claims

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