Single disperser design for coded aperture snapshot spectral imaging

Ashwin Wagadarikar, Renu John, Rebecca Willett, David Brady

Research output: Contribution to journalArticlepeer-review

765 Scopus citations


We present a single disperser spectral imager that exploits recent theoretical work in the area of compressed sensing to achieve snapshot spectral imaging. An experimental prototype is used to capture the spatiospectral information of a scene that consists of two balls illuminated by different light sources. An iterative algorithm is used to reconstruct the data cube. The average spectral resolution is 3.6 nm per spectral channel. The accuracy of the instrument is demonstrated by comparison of the spectra acquired with the proposed system with the spectra acquired by a nonimaging reference spectrometer.

Original languageEnglish (US)
Pages (from-to)B44-B51
JournalApplied optics
Issue number10
StatePublished - Apr 1 2008
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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