Publications [#280323] of David J. Brady
- Wagadarikar, AA; Pitsianis, NP; Sun, X; Brady, DJ, Spectral image estimation for coded aperture snapshot spectral imagers,
Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, vol. 7076
(December, 2008), SPIE, ISSN 0277-786X [doi]
(last updated on 2019/11/18)
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.