Publications [#280500] of David J. Brady
- Brady, DJ; Gehm, ME, Compressive imaging spectrometers using coded apertures,
Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, vol. 6246
pp. 62460 -, SPIE, Kissimmee, FL, United States, ISSN 0277-786X [12.667605], [doi]
(last updated on 2019/11/13)
A spectral imager provides a 3-D data cube in which the spatial information (2-D) of the image is comple-mented by spectral information (1-D) about each spatial location. Typically, these systems are operated in a fully-determined (or overdetermined) manner so that the measurements can be computationally inverted into a reliable estimate of the source. We propose a notional system design that is highly underdetermined, yet still computationally invertable. This approach relies on recently-developed concepts in compressive sensing. Because the number of required measurements is greatly reduced from traditional designs, the result is a faster and more economical sensor system.
Imaging systems;Spectrum analysis;Computation theory;Image sensors;Spectroscopic analysis;