12 October 2004 Fourier transform imaging spectroscopy with a multiple-aperture telescope: band-by-band image reconstruction
Author Affiliations +
Fourier transform imaging spectroscopy can be performed with a segmented-aperture telescope or a multiple-telescope array using the subaperture piston control mechanisms. Spectrum recovery from intensity measurements is analyzed for a general aperture configuration. The spatial transfer functions of the recovered spectral images are shown to vanish necessarily at the DC spatial frequency. This poses an interesting image reconstruction problem as the recovered spectral data is missing low spatial-frequency content. Results of a band-by-band reconstruction of simulated data are presented where the low spatial frequency data is reconstructed by maximizing a sharpness metric based on the spatial derivatives of the object estimate.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Samuel T. Thurman, Samuel T. Thurman, James R. Fienup, James R. Fienup, } "Fourier transform imaging spectroscopy with a multiple-aperture telescope: band-by-band image reconstruction", Proc. SPIE 5487, Optical, Infrared, and Millimeter Space Telescopes, (12 October 2004); doi: 10.1117/12.551826; https://doi.org/10.1117/12.551826


Image reconstruction in Fizeau interferometry
Proceedings of SPIE (November 02 2014)
New phasor reconstruction for speckle imaging
Proceedings of SPIE (October 10 2011)
Computed spectroscopy using segmented apertures
Proceedings of SPIE (February 01 2006)
Fourier transform spectroscopy with a deformable mirror
Proceedings of SPIE (October 11 2004)

Back to Top