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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 8 — Mar. 10, 2009
  • pp: 1520–1526

Spectral multiplexing method for digital snapshot spectral imaging

Michael A. Golub, Menachem Nathan, Amir Averbuch, Eitan Lavi, Valery A. Zheludev, and Alon Schclar  »View Author Affiliations


Applied Optics, Vol. 48, Issue 8, pp. 1520-1526 (2009)
http://dx.doi.org/10.1364/AO.48.001520


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Abstract

We propose a spectral imaging method for piecewise “macropixel” objects, which allows a regular digital camera to be converted into a digital snapshot spectral imager by equipping the camera with only a disperser and a demultiplexing algorithm. The method exploits a “multiplexed spectrum” intensity pattern, i.e., the superposition of spectra from adjacent different image points, formed on the image sensor of the digital camera. The spatial image resolution is restricted to a macropixel level in order to acquire both spectral and spatial data (i.e., an entire spectral cube) in a single snapshot. Results of laboratory experiments with a special macropixel object image, composed of small, spatially uniform squares, provide to our knowledge a first verification of the proposed spectral imaging method.

© 2009 Optical Society of America

OCIS Codes
(260.2030) Physical optics : Dispersion
(300.6190) Spectroscopy : Spectrometers
(110.4234) Imaging systems : Multispectral and hyperspectral imaging

ToC Category:
Imaging Systems

History
Original Manuscript: October 27, 2008
Revised Manuscript: February 5, 2009
Manuscript Accepted: February 6, 2009
Published: March 4, 2009

Citation
Michael A. Golub, Menachem Nathan, Amir Averbuch, Eitan Lavi, Valery A. Zheludev, and Alon Schclar, "Spectral multiplexing method for digital snapshot spectral imaging," Appl. Opt. 48, 1520-1526 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-8-1520

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