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

A technology for correcting images and LED screens, applied to static indicators, instruments, etc., can solve problems such as collection efficiency impact, data inaccuracy, peripheral defocusing, etc., to improve image collection efficiency, ensure correction effect, and solve peripheral defocusing and distortion effects

CN113257181BActive Publication Date: 2021-10-22SHENZHEN LIDING PHOTOELECTRIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-10-22

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Abstract

The present invention relates to the field of LED display technology, and specifically discloses a method for collecting corrected images of LED screens, a correction method, a collection device and a correction system. The collection method includes calculating the target collection width and height range of the camera; The target collects the width and height range and the preset light point interval strategy to generate several light point lighting schemes; generates corresponding display control information and shooting control information according to each light point lighting scheme; and obtains the camera under different shooting control information Steps such as correcting images taken by LED display screens under different display control information. The invention obtains as few corrected images as possible on the basis of meeting the data accuracy requirements, improves the image acquisition efficiency, and the obtained corrected images can be covered with CMOS pixels as much as possible, which solves the problem of out-of-focus and distortion around the corrected images in the prior art Problems, to ensure the subsequent correction of the LED display.
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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...

Examples

Embodiment Construction

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] The invention provides an LED screen correction image collection method, a correction method, a collection device and a correction system.

[0053] First of all, a kind of LED screen correction image acquisition method of the present invention, such as figure 1 shown, including the following steps:

[0054] S10: Calculate the target acquisition width and height range of the camera according to the preset target acquisition width and height calculation strategy and camera p...