Universiti Teknologi Malaysia Institutional Repository

An approach for correcting inhomogeneous atmospheric effects in remote sensing images

Hashim, Mazlan and Watson, A. I. and Thomas, M. (2004) An approach for correcting inhomogeneous atmospheric effects in remote sensing images. International Journal of remote sensing, 25 (22). pp. 5131-5141. ISSN 01431161

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Abstract

Two contextual-based approaches for correcting first order atmospheric effects due to atmospheric inhomogeneity and adjacency effect are described. The first method is a modification of the restoration method for the adjacency effect suggested by Richter. The second method is an adaptation of Stenberg’s rolling ball algorithm using the mathematical morphology transformation. Evaluation of the proposed method was carried out by noting classification accuracy on the basis that an increase in classification accuracy reflects in improved image quality. Results show that the average accuracy of classification of a scene from Malaysia, with 13 ground truth classes was as follows: (a) uncorrected—86%, (b) adjacency correction—86%, and (c) rolling ball correction—89%. It is clear from the results that the rolling ball method of correction does yield an increase in accuracy although not as substantial as in this case, and there is no reason to doubt that this method could be used to correct a wide variety of images that are affected by inhomogeneity of the atmosphere.

Item Type:Article
Uncontrolled Keywords:remote sensing, atmospheric correction, contextual, mathematical morphology
Subjects:Q Science > Q Science (General)
Q Science > QC Physics
Divisions:Geoinformation Science And Engineering (Formerly known)
ID Code:2185
Deposited By: Mr Wan Hazli Wan Kadir
Deposited On:01 Apr 2007 17:06
Last Modified:21 Mar 2011 04:22

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