Optimum Ensemble Classification for Fully Polarimetric SAR Data Using Global-Local Classification Approach

Authors

Department of Electrical and Computer Engineering, University of Birjand, Birjand, Iran

Abstract

In this paper, a proposed ensemble classification for fully polarimetric synthetic aperture radar (PolSAR) data using a global-local classification approach is presented. In the first step, to perform the global classification, the training feature space is divided into a specified number of clusters. In the next step to carry out the local classification over each of these clusters, which contains elements of several classes, a base classifier is trained. Thus, an ensemble of classifiers has been formed which each of them acts professionally in a part of the feature space. To achieve more diversity, the data set is independently partitioned into variable number of clusters by  classifier and K-means algorithm. To combine outputs of different arrangements, majority voting, Naïve Bayes and a heuristic combination rule with taking into account the classification accuracy and reliability (which in PolSAR classification less attention has been paid to it) as objective functions, are used. The experimental results over two PolSAR images prove effectiveness of the proposed algorithms in comparison to the baseline methods.

Keywords

References

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International Journal of Engineering
Volume 31, Issue 2
TRANSACTIONS B: Applications
February 2018
Pages 331-338

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