Experimental results are presented for a computed tomography imaging spectrometer (CTIS) with imposed spatial–spectral modulation on the image scene. This modulation structure on the CTIS tomographic dispersion created substantial gains in spectral reconstruction resolution after standard iterative, nonlinear, inversion techniques were used. Modulation limits system ambiguities, so high-frequency spectral and low-frequency spatial scene data could be recovered. The results demonstrate how spatial modulation acts as a high-frequency spectral deconvolver for the snapshot hyperspectral imager technology.
© 2006 Optical Society of America
Original Manuscript: March 24, 2005
Revised Manuscript: August 16, 2005
Manuscript Accepted: August 25, 2005
William R. Johnson, Daniel W. Wilson, and Greg Bearman, "Spatial-spectral modulating snapshot hyperspectral imager," Appl. Opt. 45, 1898-1908 (2006)