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Superpixel Segmentation of Hyperspectral Images Based on Entropy and Mutual Information

机译:基于熵和相互信息的超光谱图像的超像性分割

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摘要

Superpixel segmentation (SS) methods have been proven to be feasible in improving the performance of hybrid algorithms on hyperspectral images (HSIs). In this paper, a superpixel segmentation algorithm based on the information measures with color histogram driving (IM-CHD) was proposed. First, Shannon entropy was applied to measure the image information and preliminarily select spectral bands. Mutual information (MI) is derived from the concept of entropy and measures the statistical dependence between two random variables. Also, MI can effectively identify the redundant spectral bands. Therefore, in this paper, both MI and color matching functions (CMF) were used to select the most useful spectral bands. Second, the selected spectral bands were combined into a false color image containing the main spectral information. A local optimization algorithm named “hill climbing” was used to achieve the superpixel segmentation. Finally, parameter selection experiments and comparative experiments were performed on two hyperspectral data sets. The experimental results showed that the IM-CHD method was more efficient and accurate than other state-of-the-art methods.
机译:超像素分割(SS)的方法已被证明是在提高的高光谱图像(HSIS)混合算法的性能是可行的。在本文中,基于与颜色直方图驱动(IM-CHD)的信息的措施超像素分割算法。首先,施加香农熵来测量图像信息和预先选择的光谱带。互信息(MI)从熵的概念衍生和测量两个随机变量之间的统计相关性。此外,MI能够有效识别冗余谱带。因此,在本文中,两个MI和配色函数(CMF)被用来选择最有用的光谱带。第二,所选择的光谱带合并到含有主光谱信息假彩色图像。被用来命名为“爬山”局部优化算法来实现超像素分割。最后,参数选择的实验和对比实验在两个高光谱数据集进行。实验结果表明,IM-CHD方法是更有效的和比其他国家的最先进的方法的准确。

著录项

  • 作者

    Lianlei Lin; Shanshan Zhang;

  • 作者单位
  • 年度 2020
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 入库时间 2022-08-20 22:09:05

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