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Opt Express. 2008 Sep 29;16(20):15366-74.

Mitigation of spectral mis-registration effects in imaging spectrometers via cubic spline interpolation.

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  • 1The State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Jilin, Changchun, 130033.


The effects of spectral curvature (smile) on the co-registration of measured radiance spectra were analyzed for a dispersive imaging spectrometer. The spectra measured by the imaging spectrometer with spectral curvature were re-sampled using cubic spline Interpolation to mitigate the mis-registration of spectral radiance measurement. After correction, the co-registration of measured radiance spectra is distinctly improved.

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