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- W2954126987 abstract "Multispectral filter array (MSFA)-based imaging is a compact, practical technique for snapshot spectral image capturing and reconstruction. The imaging and reconstruction quality is highly influenced by the spectral sensitivities and spatial arrangement of channels on MSFAs, and the used reconstruction method. In order to design a MSFA with high imaging capacity, we propose a sparse representation based approach to optimize spectral sensitivities and spatial arrangement of MSFAs. The proposed approach first overall models the various errors associated with spectral reconstruction, and then uses a global heuristic searching method to optimize MSFAs via minimizing the estimated error of MSFAs. Our MSFA optimization method can select filters from off-the-shelf candidate filter sets while assigning the selected filters to the designed MSFA. Experimental results on three datasets show that the proposed method is more efficient, flexible, and can design MSFAs with lower spectral construction errors when compared with existing state-of-the-art methods. The MSFAs designed by our method show better performance than others even using different spectral reconstruction methods." @default.
- W2954126987 created "2019-07-12" @default.
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- W2954126987 date "2019-06-30" @default.
- W2954126987 modified "2023-10-16" @default.
- W2954126987 title "Optimized Multi-Spectral Filter Arrays for Spectral Reconstruction" @default.
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- W2954126987 doi "https://doi.org/10.3390/s19132905" @default.
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