A new neuro-fuzzy-based classification approach for hyperspectral remote sensing images

Abstract

Hyperspectral images are widely used in many applications. However, finding the appropriate hyperspectral image classification technique is a challenge. In this paper, we propose a new method by using an artificial intelligence-based method for hyperspectral image classification. The system has two parts: first, a pre-processing step, which helps the training phase to work faster; and second, the training part, which consists of calculating the neuro-fuzzy parameters. The prepared system is then applied to the classification of images. Three well-known hyperspectral datasets, including Pavia University from reflective optics system imaging spectrometer, the Botswana image from Hyperion and the Indian Pine image from airborne visible/infrared imaging spectrometer, were chosen to test the method. The final results of the experiments show that this system outperforms two classical methods of hyperspectral classification: support vector machine and spectral angle mapper. The comparison of the final results was made using two different metrics: overall accuracy and total disagreement. The proposed method increases the overall accuracy by about 5% for the Pavia University dataset, 2% for the Botswana dataset and 7% for the Indian Pine dataset. The total disagreement was reduced by about 0.01 for the Pavia University, 0.03 for the Botswana and 0.1 for the Indian Pine dataset when the proposed method was applied.

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“…The SAM algorithm is, however, just one of the classical methods used for hyperspectral image classification. Researchers have proposed both algorithm optimizations (Galal et al, 2012;Tang et al, 2015) and alternative approaches (Kakhani and Mokhtarzade, 2019). The package modularity allows the user to add new processing algorithms by calling other R packages.…”

“…As a proof of concept, we show an example that uses the R 'signal' package (Signal developers, 2014) to include a Savitzky-Golay filter to pre-process a sample in the CodeOcean computer capsule that accompanies the original publication of this chapter (Corradini, 2020). In future releases, we expect to include a support vector machine algorithm, another hyperspectral image classification method with good reputation among scientists (Kakhani and Mokhtarzade, 2019). uFTIR: an R package to process hyperspectral images 73…”