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Multiple Kernel Learning for Hyperspectral Image Classification: A Review
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DOI：10.1109/TGRS.2017.2729882.png)
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摘要
En 中文
With the rapid development of spectral imaging techniques, classification of hyperspectral images (HSIs) has attracted great attention in various applications such as land survey and resource monitoring in the field of remote sensing. A key challenge in HSI classification is how to explore effective approaches to fully use the spatial-spectral information provided by the data cube. Multiple kernel learning (MKL) has been successfully applied to HSI classification due to its capacity to handle heterogeneous fusion of both spectral and spatial features. This approach can generate an adaptive kernel as an optimally weighted sum of a few fixed kernels to model a nonlinear data structure. In this way, the difficulty of kernel selection and the limitation of a fixed kernel can be alleviated. Various MKL algorithms have been developed in recent years, such as the general MKL, the subspace MKL, the nonlinear MKL, the sparse MKL, and the ensemble MKL. The goal of this paper is to provide a systematic review of MKL methods, which have been applied to HSI classification. We also analyze and evaluate different MKL algorithms and their respective characteristics in different cases of HSI classification cases. Finally, we discuss the future direction and trends of research in this area.
Keyword:
Classification
heterogeneous features
hyperspectral images (HSIs)
multiple kernel learning (MKL)
remote sensing
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IF:
8.6
论文数:
2.1W
被引数:
10.7W
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Sample-screening MKL method via boosting strategy for hyperspectral image classification基于boosting策略的样本筛选MKL高光谱图像分类方法.png)
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