Abstract
Principal component analysis (PCA) and independent component analysis (ICA) are linear feature extraction methods in terms of the second-order statistics and higher-order statistics and have good compatibility and complementarity. For the feature extraction of the hyperspectral remote sensing image, an approach of the combined PCA and ICA was followed in the real remote sensing classification applications. In this study, the weighted PCA-ICA method was introduced to extract the feature information from HJ-1A hyperspectral imager (HSI) image. And then the real airborne visible infrared imaging spectrometer (AVIRIS) image case was performed by the distance similarity measure. Experimental results on HJ-1A HSI and AVIRIS images indicate that the proposed method can get high average accuracy of 89.55% and kappa coefficient of 0.8101 than the typical methods under certain condition with a suitable number of eigenvectors and weighted values.
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Acknowledgements
We thank the vital comments made by the reviewers, the editorial team, and the technique support by “Ziqiang 4000” HPC team in Shanghai University. This work was co-supported by the Projects of National Science Foundation of China (41404024), Shanghai Science and Technology Development Foundation (16dz1206000 and 16142203000), and Young Teachers Training and Supporting Plan in Shanghai Universities (ZZSD14025). The HSI remote sensing image was obtained from the China Centre for Resource Satellite Data and Application. The authors gratefully acknowledge these supports.
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Liu, L., Li, Cf., Lei, Ym. et al. Feature extraction for hyperspectral remote sensing image using weighted PCA-ICA. Arab J Geosci 10, 307 (2017). https://doi.org/10.1007/s12517-017-3090-1
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DOI: https://doi.org/10.1007/s12517-017-3090-1