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Title: The use of selected pseudo-invariant targets for the application of atmospheric correction in multi-temporal studies using satellite remotely sensed imagery
Authors: Retalis, Adrianos 
Clayton, Chris R I 
Hadjimitsis, Diofantos G. 
Keywords: Remote sensing;Reflectance;Light target;Dark target;Atmospheric correction; Pseudo-invariant targets; Empirical line method
Category: Civil Engineering
Field: Engineering & Technology
Issue Date: 2009
Publisher: Elsevier B.V.
Source: International Journal of Applied Earth Observation and Geoinformation, Vol. 11, no. 3, 2009, pp.192-200
Abstract: Because atmospheric effects can have a significant impact on the data obtained from multi-spectral satellite remote sensing, it is frequently necessary to make corrections before any other image processing can be started. This paper describes a robust and relatively simple atmospheric correction method that uses pseudo-invariant targets (PITs) in conjunction with the empirical line method. The method is based on the selection of a number of suitable generic PITs, on the basis that they are large, distinctive in shape, and occur in many geographical areas. Whereas the multi-temporal normalization method corrects all images to a selected reference image, in this method images are simultaneously corrected using targets with a range of estimated surface reflectance values. The paper describes some applications of the method for a range of environmental studies involving water quality and air pollution monitoring, and mapping land-cover changes.
ISSN: 0303-2434
Rights: © 2009 Elsevier B.V.
Type: Article
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