Band selection by mutual information for hyper-spectral image classification
by Ibtissam Banit'ouagua; Mounir Ait Kerroum; Ahmed Hammouch; Driss Aboutajdine
International Journal of Advanced Intelligence Paradigms (IJAIP), Vol. 8, No. 1, 2016

Abstract: Band selection is one of the most important problems in hyper-spectral image classification. Indeed, the presence of irrelevant and/or redundant bands can harm the performance of classification accuracy. This paper investigates the effectiveness of four mutual information feature selector (MIFS) algorithms to select the informative bands for hyper-spectral image classification. These algorithms are: MIFS, MIFS-U, MIFS-U2 and NMIFS. Our main motivation behind the study of this family algorithm is due to the fact that mutual information (MI) is an effective indicator to measure the overall statistical dependency between variables and it has proved its efficiency in many pattern recognition problems, especially in remote sensing. The experimental results have been made on two AVIRIS hyper-spectral datasets (Indian Pines and Salinas) and prove that MIFS algorithm and its variants give promising performances, in terms of dimensionality reduction and classification accuracy than MI-est method (Guo et al., 2006), specially for high dimensional data with many irrelevant and/or redundant bands.

Online publication date: Wed, 17-Feb-2016

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