一种遥感卫星影像色差仿真模型构建和色差校正方法

By constructing a color difference simulation model and color difference correction method for remote sensing satellite images, and utilizing the UNet architecture's convolutional neural network and post-processing algorithms, the problem of color difference in optical remote sensing satellite images was solved, achieving efficient image correction and quality improvement.

CN121095124BActive Publication Date: 2026-07-17CHANGGUANG SATELLITE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGGUANG SATELLITE TECH CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot completely remove chromatic aberration in optical remote sensing satellite images in practical applications, affecting image quality and radiometric consistency.

Method used

A color difference simulation model for remote sensing satellite imagery is constructed. A convolutional neural network based on the UNet architecture is used for color difference correction. Two color difference simulation functions are designed by combining laboratory calibration data and on-orbit imaging characteristics. Color difference patterns are generated, and pre-training and fine-tuning datasets are constructed through block operations. Post-processing algorithms are used to correct boundary effects and achieve color difference correction.

Benefits of technology

It effectively removes chromatic aberration in remote sensing images, improves the radiometric quality and visual effects of the images, and enhances the application value of optical remote sensing satellite images.

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Abstract

一种遥感卫星影像色差仿真模型构建和色差校正方法,涉及遥感图像处理技术领域,缓解了现有技术无法去除色差的问题,解决了光学遥感卫星影像噪声大等问题。基于色差影像数据,通过第一种色差仿真函数,生成第一种色差模式;基于实验室定标数据,通过第二种色差仿真函数,生成第二种色差模式;分别将第一种色差模式和第二种色差模式叠加在干净影像上并分块操作,获得分块后干净影像块、第一种色差影像块和第二种色差影像块,构建预训练数据集和微调数据集;基于预训练数据集对色差校正模型进行预训练,获得初步色差校正模型,然后基于微调数据集进行微调,获得最终色差校正模型。本发明所述的方法适用于光学遥感卫星影像领域中对图像的处理。
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