Experimental data from a Coded Aperture Snapshot Spectral Imager (CASSI)

Relevant papers describing the CASSI used to capture the experimental data

1. Ashwin Wagadarikar, Nikos Pitsianis, Xiaobai Sun, and David Brady, "Video rate spectral imaging using a coded aperture snapshot spectral imager," Optics Express, 17 (8) (2009)
2. Ashwin Wagadarikar, Nikos Pitsianis, Xiaobai Sun, and David Brady, "Spectral image estimation for coded aperture snapshot spectral imagers," Image Reconstruction from Incomplete Data V, Proc. SPIE 7076 (2008)

Experimental data

Original Image	Image on the detector array

Matlab code and results

All the MATLAB code to generate a three dimensional spectral datacube (see the figure below) from the two dimensional array of CASSI measurements is located in the following zip file. The file 'README.txt' describes the contents of the zip file. Please contact Ashwin Wagadarikar if you encounter any problems running the code.

Reconstucted datacube