Improved Hyperspectral Unmixed Initialization Method Based on Non-Negative Matrix Factorization

Pengfei Huang; Xiangbing Kong; Haitao Jing

doi:10.3788/LOP57.061020

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

Improved Hyperspectral Unmixed Initialization Method Based on Non-Negative Matrix Factorization

Pengfei Huang^1,2, Xiangbing Kong^2、*, and Haitao Jing¹

Author Affiliations

¹School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, Henan 454150, China

²Yellow River Institute of Hydraulic Research, Zhengzhou, Henan 450000, China

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Abstract Get PDF(in Chinese)

Figures & Tables(11)

Fig. 1. Initialization flow chart of IISSF

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

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

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Fig. 4. Endmember abundance

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Fig. 5. Cuprite Image

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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

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Fig. 7. RMSE of reconstructed image

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Table 1. RMSE at different SNR

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Table 1. RMSE at different SNR

SNR /dB	20	25	30	35	40	45	50
VCAFCLS	0.1394	0.0594	0.0313	0.0262	0.0217	0.0217	0.022
ASCNMF	0.0832	0.0479	0.0277	0.0261	0.0215	0.0216	0.0217
SGSNMF	0.0357	0.0252	0.0224	0.0215	0.0136	0.0072	0.0045
RESGSNMF	0.0355	0.0249	0.0219	0.0216	0.0101	0.0057	0.0030

Table 2. SAD at different SNR

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Table 2. SAD at different SNR

SNR /dB	20	25	30	35	40	45	50
VCAFCLS	0.0902	0.0479	0.0269	0.0175	0.0089	0.0047	0.0024
ASCNMF	0.0468	0.0294	0.0178	0.0102	0.0066	0.0037	0.0021
SGSNMF	0.0201	0.0183	0.0131	0.0045	0.0026	0.0024	0.0022
RESGSNMF	0.0201	0.0174	0.0096	0.0043	0.0020	0.0017	0.0017

Table 3. SAD of 12 kinds of endmembers for different methods

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Table 3. SAD of 12 kinds of endmembers for different methods

Endmember type	VCAFCLS	ASCNMF	SGSNMF	RESGSNMF
Alunite	0.1021	0.1127	0.1222	0.1143
Andradite	0.6908	0.1057	0.0699	0.0691
Buddingtonite	1.0904	0.0947	0.0966	0.117
Dumortierite	0.1001	0.125	0.0735	0.1003
Kaolinite_1	0.0838	0.6064	0.1249	0.179
Kaolinite_2	0.0758	0.0676	0.0799	0.0765
Muscovite	0.1746	0.6873	1.1197	1.1181
Montmorillonite	0.061	0.063	0.0686	0.0597
Nontronite	0.1072	0.077	0.1164	0.095
Pyrope	0.8972	0.3081	0.2339	0.0948
Sphene	0.0833	0.0531	0.0556	0.0604
Chalcedony	0.0896	0.0858	0.088	0.0907
Average of SAD	0.2963	0.1988	0.1874	0.1812

Table 4. Running time of four different methods
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Table 4. Running time of four different methods
Method VCAFCLS ASCNMF SGSNMF RESGSNMF
Running time /s 10.200 17.353 25.241 25.031

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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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