Spectroscopy and Spectral Analysis, Volume. 42, Issue 3, 947(2022)

Characteristic Analysis and Decomposition of Mixed Pixels From UAV Hyperspectral Images in Rice Tillering Stage

Feng-hua YU*... Dan ZHAO1;, Zhong-hui GUO1;, Zhong-yu JIN1;, Shuang GUO1;, Chun-ling CHEN1; 2; *; and Tong-yu XU1; 2; |Show fewer author(s)
Author Affiliations
  • 1. College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang 110866, China
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    Figures & Tables(10)
    Location of the study area and the non-homogeneous state of the canopy of rice at tillering stage
    Registration results of visible light image (b) and hyperspectral remote sensing image (a)
    Hyperspectral reflectance spectra of rice pixels, water layer pixels and mixed pixels
    Reflectance spectra of rice under different abundance conditions
    Object-oriented(a) and supervise (b) classification results
    Hyperspectral reflectance spectra of 24 pure water bodies in rice fields
    Results of supervised classification
    Unmixing results of mixed pixels under different endmember abundance conditions
    • Table 1. Classification results of different methods

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      Table 1. Classification results of different methods

      总体分
      类精度
      /%
      Kappa
      系数
      错分
      误差
      /%
      漏分
      误差
      /%
      制图
      精度
      /%
      用户
      精度
      /%
      监督分类水体
      水稻
      99.458 60.986 30.42
      0.87
      0.32
      1.13
      99.67
      98.87
      99.58
      94.52
      面向对象水体
      水稻
      98.213 80.954 11.99
      1.17
      0.42
      5.47
      99.58
      99.12
      98.00
      98.80
    • Table 2. Results of rice abundance estimation by different methods

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      Table 2. Results of rice abundance estimation by different methods

      水稻丰度可见光分类丰度估计完全约束最小二乘法
      pic10.906 90.806 7
      pic20.467 10.945 2
      pic30.439 40.620 9
      pic40.104 00.479 3
      pic50.847 50.815 9
      pic60.157 90.842 3
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    Feng-hua YU, Dan ZHAO, Zhong-hui GUO, Zhong-yu JIN, Shuang GUO, Chun-ling CHEN, Tong-yu XU. Characteristic Analysis and Decomposition of Mixed Pixels From UAV Hyperspectral Images in Rice Tillering Stage[J]. Spectroscopy and Spectral Analysis, 2022, 42(3): 947

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    Paper Information

    Category: Orginal Article

    Received: Jun. 11, 2021

    Accepted: Nov. 16, 2021

    Published Online: Apr. 19, 2022

    The Author Email: YU Feng-hua (adan@syau.edu.cn)

    DOI:10.3964/j.issn.1000-0593(2022)03-0947-07

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