Image geometry correction method, device and electronic equipment

Abstract

The present invention provides an image geometry correction method, device, and electronic equipment, which relate to the technical field of image processing. The method includes: matching the same-named points between the image to be corrected and the reference image of the corresponding area of ​​the image to be corrected, and obtaining a pair of control points that are successfully matched. ; Carry out grid segmentation of the target area according to the preset grid size to obtain multiple grid areas; wherein, the target area is the area corresponding to the geographical range of the image to be corrected in the reference image; according to the control point pair, determine The position correspondence between the center point of each grid area and the corresponding pixel in the image to be corrected; according to the position correspondence and the positional relationship between each pixel in the target area and each grid area, to be corrected The image is geometrically corrected based on the linear interpolation algorithm, and the corrected target image is obtained. Compared with the geometric correction method based on the irregular triangular network in the prior art, this method improves the correction accuracy.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image geometry correction method, device and electronic equipment. Background technique [0002] Image geometry correction is the process of removing geometric distortion from an image that has geometric distortion (geometric distortion). [0003] The existing image geometry correction methods usually use the matched control point pairs to construct an irregular triangulation network to do local correction of small facets of the triangulation network after automatically matching the control points. In this image geometric correction method, once a control point pair is wrong, the geometric correction of multiple triangular regions formed by the control point pair will be inaccurate, resulting in low correction accuracy. Contents of the invention [0004] The object of the present invention is to provide an image geometry correction method, device and electronic equ...

AI Technical Summary

Problems solved by technology

In this image geometric correction method, once a control point pair is wrong, the geometric correction of multiple triangular areas composed of the control point pair will be inaccurate, resulting in low correction accuracy

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