Method and device for multispectral image registration based on line segment matching

Abstract

The invention provides a multispectral image registration method based on line segment matching and a multispectral image registration device based on the line segment matching. The multispectral image registration method based on the line segment matching comprises obtaining first intersection points of multiple groups of intersecting line segment pairs in a to-be-registered multispectral image, obtaining second intersection points of multiple groups of intersecting line segment pairs in a reference multispectral image, determining the second intersection points, matching the first intersection points, on the reference multispectral image, performing characteristic point matching on the second intersection points and the first intersection points to determine the second intersection points, matching the first intersecting points, on the reference multispectral image, determining a coordinate transformation parameter according to the first intersection points and the second intersection points matching the first intersection points, and performing registration on the to-be-registered multispectral image and the reference multispectral image according to the coordinate transformation parameter. Accuracy of the multispectral image registration is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for multispectral image registration based on line segment matching. Background technique [0002] Image registration refers to determining the transformation parameters between images based on some similarity measures, so that two or more images of the same scene acquired from different detectors, different perspectives, and different times are transformed into the same coordinate system. , the process of getting the best match at the pixel level, it is an important early step in the process of image fusion, target recognition, target change detection, computer vision, etc., and has a wide range of applications in military, remote sensing, medical and other fields. [0003] An existing image registration method is to use the Scale-invariant feature transform (SIFT) method, the specific steps are as follows: first generate the image scale space,...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for multispectral image registration based on line segment matching to solve the problem of low registration accuracy in the prior art

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