Abstract
Using Landsat TM imagery,the authors designed an atmospheric correction method for nonhomogeneous atmosphere in this paper.The method is based on the traditional dark object subtraction(DOS) technique.In combination with the atmospheric radiative transfer model,the authors selected quite a few dark objects from Landsat TM imagery and calculated the atmospheric correction factor corresponding to each dark object.Then the atmospheric correction for entire image was carried out by making use of all dark objects synthetically.The main characteristic of this method is that it does not depend on any extraneous information.As the atmospheric nonhomogeneity is considered in this method,the precision of atmospheric correction is relatively high.
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