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A Statistics-Based Reconstruction Method and System for Generalized Shadow Spectrum of Remote Sensing Imagery

A technology for spectral reconstruction and remote sensing images, applied in computing, image enhancement, image analysis, etc.

Active Publication Date: 2020-11-13
湖南省有色地质勘查研究院 +1
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Problems solved by technology

[0008] The present invention provides a method and system for reconstructing the generalized shadow spectrum of remote sensing images based on statistics, aiming to solve the technical problems of the above-mentioned defects existing in the shadow correction of existing remote sensing images

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  • A Statistics-Based Reconstruction Method and System for Generalized Shadow Spectrum of Remote Sensing Imagery
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  • A Statistics-Based Reconstruction Method and System for Generalized Shadow Spectrum of Remote Sensing Imagery

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[0065] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0066] Such as figure 1 As shown, the first embodiment of the present invention proposes a method for reconstructing the generalized shadow spectrum of remote sensing images based on statistics, including the following steps:

[0067] Step S100 , acquiring remote sensing image data to be subjected to spectral reconstruction, performing radiometric calibration on the remote sensing image data, converting it into radiation data, and performing data clipping on the area to be subjected to spectral reconstruction.

[0068] The remote sensing image data to be reconstructed is obtained, and radiometric calibration is performed on it, the remote sensing image data to be reconstructed is transformed into radiation data, and the data is clipped for the ar...

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Abstract

The invention discloses a statistics-based generalized shadow spectrum reconstruction method and system for remote sensing images. By acquiring remote sensing image data to be spectrally reconstructed, performing radiation calibration on the remote sensing image data, converting it into radiation data, and simultaneously Data clipping is performed in the spectral reconstruction area; mixed spectral decomposition is performed on the spectral reconstruction area after data clipping, and the shadow basis component is extracted; based on the radiative transfer theory, the generalized shadow consistency spectrum reconstruction equation is derived; based on statistical equation estimation, spectral parameters are obtained and implemented Generalized shadow spectral reconstruction of remote sensing images intended for spectral reconstruction. This invention breaks through the classic definition of traditional remote sensing image shadows and derives a generalized shadow consistency spectral reconstruction equation. The reconstruction results have natural color transitions, more prominent textures, and no edge effects. The effect is very significant; the information recorded in the image data is maintained to the maximum extent. fidelity.

Description

technical field [0001] The invention relates to the technical field of remote sensing image data processing, and in particular discloses a method and system for reconstructing a generalized shadow spectrum of remote sensing images based on statistics. Background technique [0002] The shadow correction or spectral reconstruction of optical remote sensing image data belongs to the research of remote sensing mechanism and method in the classification catalog of the National Natural Science Foundation of China, and the classification code is D0106; in terms of specific research content, it belongs to remote sensing image processing and enhancement. The existence of shadows in remote sensing image data will cause some or all information to be lost, weaken the optical feature information in the image, and thus affect the subsequent remote sensing interpretation and information extraction, especially the quantitative remote sensing inversion and hidden targets based on the reflecti...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/00
CPCG06T2207/10032G06T2207/20132G06T3/04
Inventor 张利军曹创华文春华徐质彬杨晓弘尹展黄志飙杨海燕陈海龙
Owner 湖南省有色地质勘查研究院
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