Practical Spectral Photography

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• Publication Type: Journal Paper with Conference Talk
• Date (from): May 13th 2012
• Date (to): May 18th 2012
• Event: Eurographics 2012
• Lecturer: Ralf Habel
• Location: Cagliari, Italy
• Keywords: Computed Tomography Imaging Spectrometer, Computational Photography, Spectroscopy, Practical

@article\{Habel_2012_PSP,
  title =      "Practical Spectral Photography",
  author =     "Ralf Habel and Michael Kudenov and Michael Wimmer",
  year =       "2012",
  abstract =   "We introduce a low-cost and compact spectral imaging camera
               design based on unmodified consumer cameras and a custom
               camera objective. The device can be used in a
               high-resolution configuration that measures the spectrum of
               a column of an imaged scene with up to 0.8 nm spectral
               resolution, rivalling commercial non-imaging spectrometers,
               and a mid-resolution hyperspectral mode that allows the
               spectral measurement of a whole image, with up to 5 nm
               spectral resolution and 120x120 spatial resolution. We
               develop the necessary calibration methods based on
               halogen/fluorescent lamps and laser pointers to acquire all
               necessary information about the optical system.  We also
               derive the mathematical methods to interpret and reconstruct
               spectra directly from the Bayer array images of a standard
               RGGB camera. This objective design introduces accurate
               spectral remote sensing to computational photography, with
               numerous applications in color theory, colorimetry, vision
               and rendering, making the acquisition of a spectral image as
               simple as taking a high-dynamic-range image.",
  pages =      "%pages_from%--%pages_to%",
  month =      may,
  event =      "Eurographics 2012",
  journal =    "Computer Graphics Forum (Proceedings EUROGRAPHICS 2012)",
  location =   "Cagliari, Italy",
  keywords =   "Computed Tomography Imaging Spectrometer, Computational
               Photography, Spectroscopy, Practical",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/2012/Habel_2012_PSP/",
}