Given Raster Image and Its Deformed Counterpart with Geometric Correction Implementation

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Resource Overview

Given an original raster image and its deformed version, first determine the displacement of each grid intersection point, then implement an image geometric correction program using the control grid method, including displacement vector calculation and interpolation algorithms.

Detailed Documentation

Given an original raster image and its deformed counterpart, you need to first determine the displacement of each grid intersection point. This involves calculating displacement vectors between corresponding grid points in both images, which can be implemented using feature point detection algorithms like SIFT or Harris corner detection. Subsequently, develop a program using the control grid method to achieve image geometric correction. The program should include steps for establishing coordinate mapping relationships, implementing interpolation algorithms (such as bilinear or bicubic interpolation), and applying spatial transformations to correct image shape and position. This geometric correction process will help align the deformed image with the original reference, achieving the desired visual and spatial accuracy through pixel repositioning and intensity value reassignment.

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