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
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 3, 947 (2022)
Fig. 1. Location of the study area and the non-homogeneous state of the canopy of rice at tillering stage
Fig. 2. Registration results of visible light image (b) and hyperspectral remote sensing image (a)
Fig. 3. Hyperspectral reflectance spectra of rice pixels, water layer pixels and mixed pixels
Fig. 4. Reflectance spectra of rice under different abundance conditions
Fig. 5. Object-oriented
(a) and supervise (b) classification results
(a) and supervise (b) classification results
Fig. 6. Hyperspectral reflectance spectra of 24 pure water bodies in rice fields
Fig. 7. Results of supervised classification
Fig. 8. Unmixing results of mixed pixels under different endmember abundance conditions
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Table 1. Classification results of different methods
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Table 2. Results of rice abundance estimation by different methods
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