Method for generating non-shadow satellite remote sensing orthographic digital image by computer

Abstract

This invention relates to a computer production method of non-shadow satellite remote sensing to shoot the digital picture. This method is: first, establishes the quotarelations digital principle model between satellite remote sensing information with the terrain, the solar direct light and the sky diffused light; continues analysis satellite remote sensing digital picture: produces the solar direct light remote sensing picture and the sky diffused light remote sensing picture, separately computes the pixel solar direct light transformation ratio, the sky diffused light transformation ratio and pixel terrestrial surface radiation parameter, named scattering / perpendicular incidence ratio, scattering / radiation ratio; establishes horizontal terrain transformation model of the solar direct light and the sky diffused light remote sensing digital picture, separately carries on horizontal terrain transformation, eliminates the radiation difference in the accidented relief and this kind of difference influence on the satellite remote sensing digital picture;then judges and eliminates the mountain body and the clouds layer shadow of remote sensing digital picture; finally completes the computer production of the satellite remote sensing digital picture terrain transformation in this foundation. This invention theory, method is advanced, scientific, reasonable compare to the traditional remote sensing digital processing, widely applies to the quantitative investigation and the application of the remote sensing technology.

Description

Technical field: [0001] The invention relates to a method for processing satellite remote sensing digital images, in particular to a principle method for eliminating shadows on remote sensing digital images and restoring pixel remote sensing values ​​in shadows. Background technique: [0002] The influence and correction of terrain on remote sensing information (including the elimination of mountain shadows and cloud shadows) has always been a difficult problem in the processing and application of satellite remote sensing digital images. The existing satellite remote sensing digital image processing and application technology and orthophoto image processing technology have not fundamentally solved these important problems. There are no related documents and patent reports at home and abroad through novelty searches, and this invention solves this problem better in theory and practice. Invention content: [0003] The object of the present invention is to provide a computer...

AI Technical Summary

Problems solved by technology

The existing satellite remote sensing digital image processing and application technology and orthophoto image processing technology have not fundamentally solved these important problems

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