Spectral image estimation for coded aperture snapshot spectral imagers

Ashwin A. Wagadarikar; Nikos P. Pitsianis; Xiaobai Sun; David J. Brady

doi:10.1117/12.795545

4 September 2008 Spectral image estimation for coded aperture snapshot spectral imagers

Ashwin A. Wagadarikar, Nikos P. Pitsianis, Xiaobai Sun, David J. Brady

Proceedings Volume 7076, Image Reconstruction from Incomplete Data V; 707602 (2008) https://doi.org/10.1117/12.795545
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

Abstract

This paper describes numerical estimation techniques for coded aperture snapshot spectral imagers (CASSI). In a snapshot, a CASSI captures a two-dimensional (2D) array of measurements that is an encoded representation of both spectral information and 2D spatial information of a scene. The spatial information is modulated by a coded aperture and the spectral information is modulated by a dispersive element. The estimation process decodes the 2D measurements to render a three-dimensional spatio-spectral estimate of the scene, and is therefore an indispensable component of the spectral imager. Numerical estimation results are presented.

Citation Download Citation

Ashwin A. Wagadarikar, Nikos P. Pitsianis, Xiaobai Sun, and David J. Brady "Spectral image estimation for coded aperture snapshot spectral imagers", Proc. SPIE 7076, Image Reconstruction from Incomplete Data V, 707602 (4 September 2008); https://doi.org/10.1117/12.795545

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