测绘通报 ›› 2019, Vol. 0 ›› Issue (6): 24-28.doi: 10.13474/j.cnki.11-2246.2019.0178

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Hyperspectral image classification based on local and structural feature with sparse multinomial logistic regression

SHEN Yuzhen1, GUAN Yunlan2, YANG Lu3, LIU Chengcheng4, YAN Xiaofang5   

  1. 1. The Department of Guangzhou Urban Planning Technology Development Services, Guangzhou 510030, China;
    2. Faculty of Geomatics, East China University of Technology, Nanchang 330013, China;
    3. College of Geomatics and Geoinformation, GuiLin University of Technology, Guilin 541004, China;
    4. College of Earth Science, Chengdu University of Technology, Chengdu 610059, China;
    5. Xingning Municipal Bureau of Land and Resources, Xingning 514500, China
  • Received:2018-11-29 Online:2019-06-25 Published:2019-07-01

Abstract:

Sparse multinomial logistic regression only uses spectral information in image classification.Therefore,the classification effect is poor. In this paper,a hyperspectral image classification method based on local and structural feature with sparse multinomial logistic regression is proposed. Firstly, weighted mean filter and extended multi attribute profiles are used to extract local and structural features of the original hyperspectral images. Then the weighted average feature level fusion is carried out to obtain more unique pixel feat ures.Finally,the fusion results are classified by sparse multinomial logistic regression.The results show that the proposed method has well classification effect and robustness.

Key words: hyperspectral image, feature fusion, weighted mean filter, extended multi-attribute profiles, sparse multinomial logistic regression

CLC Number: