Recovery of a flawed hyperspectral imager calibration using optical modeling.

A reconstructed hyperspectral datacube has been successfully recovered from a badly flawed point-spread function (PSF) observation. The corrected PSF alleviated unnoticed detector saturation and misregistration artifacts in the calibration of a crucial, irreplaceable near-infrared flash hyperspectral imager dataset. This flawed PSF induced a defocus-like artifact as well as spectral distortions in the three-dimensional hyperspectral estimate of the data. The PSF artifacts, which would have caused severe misinterpretation of the spatio-spectral information, were correctable post detection using an optical model of the PSF constrained by the available flawed calibration.