Pengfei Huang, Xiangbing Kong, Haitao Jing. Improved Hyperspectral Unmixed Initialization Method Based on Non-Negative Matrix Factorization[J]. Laser & Optoelectronics Progress, 2020, 57(6): 061020

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- Laser & Optoelectronics Progress
- Vol. 57, Issue 6, 061020 (2020)

Fig. 1. Initialization flow chart of IISSF

Fig. 2. Segmentation image and confidence index. (a) Segmentation image; (b) confidence index

Fig. 3. Endmember spectra. (a) Acmite; (b) Alunite; (c) Ammonio; (d) Analcime; (e) Andalusite

Fig. 4. Endmember abundance

Fig. 5. Cuprite Image

Fig. 6. Endmember abundance estimated by RESGSNMF. (a) Sphene; (b) Pyrope; (c) Alunite; (d) Muscovite; (e) Kaolinite_2; (f) Chalcedony; (g) Dumortierite; (h) Montmorillonite; (i) Kaolinite_1; (j) Andradite; (k) Nontronite; (l) Buddingtonite

Fig. 7. RMSE of reconstructed image
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Table 1. RMSE at different SNR
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Table 2. SAD at different SNR
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Table 3. SAD of 12 kinds of endmembers for different methods
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Table 4. Running time of four different methods

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