Empirical Mode Decomposition based decision fusion for hyperspectral image classification

Abstract

This paper proposes an Empirical Mode Decomposition (EMD) based decision fusion approach to improve hyperspectral image classification accuracy. EMD is a adaptive signal decomposition method that iteratively decomposes the data into Intrinsic Mode Functions (IMFs). In the proposed approach, firstly two dimensional EMD is applied to each hyperspectral image band. Then, the first IMF, the second IMF, the sum of the first and second IMFs and the original data are individually classified using Support Vector Machine (SVM) and the obtained decisions are fused by a decision fusion approach. Experimental results demonstrate that the classification accuracy can be increased using the proposed EMD based decision fusion approach.