In this work, a novel algorithm called SVM with Shape-adaptive Reconstruction and Smoothed Total Variation (SaR-SVM-STV) is introduced to classify hyperspectral images, which makes full use of spatial and spectral information. The Shape-adaptive Reconstruction (SaR) is introduced to preprocess each pixel based on the Pearson Correlation between pixels in its shape-adaptive (SA) region. Support Vector Machines (SVMs) are trained to estimate the pixel-wise probability maps of each class. Then the Smoothed Total Variation (STV) model is applied to denoise and generate the final classification map. Experiments show that SaR-SVM-STV outperforms the SVM-STV method with a few training labels, demonstrating the significance of reconstructing hyperspectral images before classification.
@article{arxiv.2203.15619,
title = {Classification of Hyperspectral Images Using SVM with Shape-adaptive Reconstruction and Smoothed Total Variation},
author = {Ruoning Li and Kangning Cui and Raymond H. Chan and Robert J. Plemmons},
journal= {arXiv preprint arXiv:2203.15619},
year = {2022}
}
Comments
6 pages, 3 figures. Accepted to Proceedings of IEEE IGARSS 2022