Jun Xu, Xuhong Wang, Cailing Wang. Improved Algorithm for Nonnegative Matrix Factorization and Endmember Extraction Based on Data Simplification[J]. Laser & Optoelectronics Progress, 2019, 56(9): 091001
- Laser & Optoelectronics Progress
- Vol. 56, Issue 9, 091001 (2019)
Fig. 1. Flow chart of NMF mixed pixel decomposition algorithm improved by data simplification
Fig. 2. AVIRIS data false-color image of Cuprite region
Fig. 3. Endmember extraction results of MVC-NMF algorithm. (a) Before data simplification; (b) after data simplification
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Table 1. Spectral angles between endmembers extracted by MVC-NMF algorithm and standard spectra in USGS spectral library before and after data simplificationrad
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