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Publications [#280500] of David J. Brady

Papers Published

  1. Brady, DJ; Gehm, ME, Compressive imaging spectrometers using coded apertures, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, vol. 6246 (August, 2006), pp. 62460 -, SPIE, Kissimmee, FL, United States, ISSN 0277-786X [12.667605], [doi]
    (last updated on 2019/11/13)

    Abstract:
    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.

    Keywords:
    Imaging systems;Spectrum analysis;Computation theory;Image sensors;Spectroscopic analysis;