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基于随机平均波段选择和集成核极限学习机的高光谱遥感图像分类

Hyperspectral remote sensing image classification based on random average band selection and an ensemble kernel extreme learning machine.

作者信息

Le Ba Tuan, Ha Thai Thuy Lam

出版信息

Appl Opt. 2020 May 1;59(13):4151-4157. doi: 10.1364/AO.386972.

Abstract

Hyperspectral remote sensing technology can explore a lot of information about ground objects, and the information is not explored in multispectral technology. This study proposes a hyperspectral remote sensing image classification method. First, we preprocess the hyperspectral data to obtain the average spectral information of the pixels; the average spectral information contains spectral-spatial features. Second, the average spectral information is randomly band selected to obtain multiple different datasets. Third, based on ensemble learning and a kernel extreme learning machine, an ensemble kernel extreme learning machine is proposed. Finally, a hyperspectral remote sensing image classification model based on the ensemble kernel extreme learning machine is established. Experiments with two common hyperspectral remote sensing image datasets demonstrate the effectiveness of the proposed method.

摘要

高光谱遥感技术能够探测到许多关于地面物体的信息,而这些信息是多光谱技术所无法探测到的。本研究提出了一种高光谱遥感图像分类方法。首先,我们对高光谱数据进行预处理以获得像素的平均光谱信息;平均光谱信息包含光谱-空间特征。其次,对平均光谱信息进行随机波段选择以获得多个不同的数据集。第三,基于集成学习和核极限学习机,提出了一种集成核极限学习机。最后,建立了基于集成核极限学习机的高光谱遥感图像分类模型。使用两个常见的高光谱遥感图像数据集进行的实验证明了该方法的有效性。

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