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Multi-Scale Superpixel-Guided Structural Profiles for Hyperspectral Image Classification
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DOI：10.3390/s22218502.png)
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摘要
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Hyperspectral image classification has received a lot of attention in the remote sensing field. However, most classification methods require a large number of training samples to obtain satisfactory performance. In real applications, it is difficult for users to label sufficient samples. To overcome this problem, in this work, a novel multi-scale superpixel-guided structural profile method is proposed for the classification of hyperspectral images. First, the spectral number (of the original image) is reduced with an averaging fusion method. Then, multi-scale structural profiles are extracted with the help of the superpixel segmentation method. Finally, the extracted multi-scale structural profiles are fused with an unsupervised feature selection method followed by a spectral classifier to obtain classification results. Experiments on several hyperspectral datasets verify that the proposed method can produce outstanding classification effects in the case of limited samples compared to other advanced classification methods. The classification accuracies obtained by the proposed method on the Salinas dataset are increased by 43.25%, 31.34%, and 46.82% in terms of overall accuracy (OA), average accuracy (AA), and Kappa coefficient compared to recently proposed deep learning methods.
Keyword:
hyperspectral image
superpixel segmentation
structural profiles
image classification
unsupervised feature selection
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期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
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Classification of Hyperspectral Images via Multitask Generative Adversarial Networks基于多任务生成对抗网络的高光谱图像分类
PREAI
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