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2 February 2006 Computed spectroscopy using segmented apertures
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Abstract
A novel technique for imaging spectroscopy is introduced. The technique makes use of an optical imaging system with a segmented aperture and intensity detector array on the imaging plane. The point spread function (PSF) of such a system can be adjusted by modifying the path lengths from the subapertures to the image plane, and the shape of the resulting point spread function will vary as a function of wavenumber. An image reconstruction approach is taken to convert multiple recorded pan-chromatic images with different wavenumber-varying point spread functions into a hyperspectral data set. Thus, the technique described here is a new form of computed imaging.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ralph T. Hoctor, Frederick W. Wheeler, and Eamon B. Barrett "Computed spectroscopy using segmented apertures", Proc. SPIE 6065, Computational Imaging IV, 60650H (2 February 2006); doi: 10.1117/12.659610; https://doi.org/10.1117/12.659610
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