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- W3196087966 abstract "The purpose of sparse unmixing (SU) is to find the optimal spectral subset from the spectral library and uses this subset to model each pixel in the hyperspectral data. The existing SU methods concern Gaussian noise a lot and focus less on the varied intensity of Gaussian noise in different bands and other types of noise, e.g., impulse noise and deadlines. Besides, the high coherence of the spectral library limits the performance of SU. Given the aforementioned problems, this article proposes a new method, called bandwise model based on spectral prior information (BMSPI). This proposed BMSPI models the Gaussian noise across different spectral bands and the other types of mixed noise under the maximum a posteriori probability framework, and decreases the effect of high coherence in the spectral library with the spectral prior information. The alternating direction method of multipliers is adopted to solve the BMSPI. The results of the simulated and real data experiments show that the bandwise model can suppress noises of different types effectively, and the spectral prior information is conducive to guide SU. The advantage of BMSPI is that the mentioned information is used completely. Thus, the accuracy of abundance estimation is improved." @default.
- W3196087966 created "2021-08-30" @default.
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- W3196087966 date "2021-01-01" @default.
- W3196087966 modified "2023-09-24" @default.
- W3196087966 title "Bandwise model based on spectral prior information for sparse unmixing" @default.
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- W3196087966 doi "https://doi.org/10.1109/jstars.2021.3105826" @default.
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