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Spectral-Spatial Rotation Forest for Hyperspectral Image Classification

Abstract : Rotation Forest (RoF) is a recent powerful decision tree (DT) ensemble classifier of hyperspectral images. RoF exploits random feature selection and data transformation techniques to improve both the diversity and accuracy of DT classifiers. Conventional RoF only considers data transformation on spectral information. To overcome this limitation, we propose a spectral and spatial Rotation Forest (SSRoF), to further improve the performance. In SSRoF, pixels are first smoothed by the multi-scale (MS) spatial weight mean filtering. Then, spectral-spatial data transformation,which is based on a joint spectral and spatial rotation matrix, is introduced into the RoF. Finally, classification results obtained from each scale are integrated by a majority voting rule. Experimental results on two datasets indicate the competitive performance of the proposed method when compared to other state-of-the-art methods.
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Submitted on : Friday, November 24, 2017 - 2:13:25 PM
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Junshi Xia, Lionel Bombrun, Yannick Berthoumieu, Christian Germain, Peijun Du. Spectral-Spatial Rotation Forest for Hyperspectral Image Classification. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, IEEE, 2017, 10 (10), pp.4605-4613. ⟨10.1109/JSTARS.2017.2720259⟩. ⟨hal-01647598⟩



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