Compressive imaging spectrometers using coded apertures

D. J. Brady; M. E. Gehm

doi:10.1117/12.667605

12 May 2006 Compressive imaging spectrometers using coded apertures

D. J. Brady, M. E. Gehm

Proceedings Volume 6246, Visual Information Processing XV; 62460A (2006) https://doi.org/10.1117/12.667605
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

A spectral imager provides a 3-D data cube in which the spatial information (2-D) of the image is complemented 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.

Citation Download Citation

D. J. Brady and M. E. Gehm "Compressive imaging spectrometers using coded apertures", Proc. SPIE 6246, Visual Information Processing XV, 62460A (12 May 2006); https://doi.org/10.1117/12.667605

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