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Bibtex 4(2007)12

Interactive Augmentation of Live Images using a HDR Stereo Camera
@article{KSvA07,
  author="Matthias Korn, Maik Stange, Andreas von Arb, Lisa Blum, Michael Kreil, Kathrin-Jennifer Kunze, Jens Anhenn, Timo Wallrath, and Thorsten Grosch",
  title="Interactive Augmentation of Live Images using a HDR Stereo Camera",
  journal="Journal of Virtual Reality and Broadcasting",
  editor = "Jens Herder",
  year="2007",
  volume="4",
  number="12",
  month=jan,
  note="{\tt urn:nbn:de:0009-6-12710,}, ISSN 1860-2037",
  abstract = "Adding virtual objects to real environments plays an
              important role in todays computer graphics: Typical
              examples are virtual furniture in a real room and virtual
              characters in real movies. For a believable appearance,
              consistent lighting of the virtual objects is
              required. We present an augmented reality system that
              displays virtual objects with consistent illumination
              and shadows in the image of a simple webcam. We
              use two high dynamic range video cameras with fisheye
              lenses permanently recording the environment illumination.
              A sampling algorithm selects a few bright
              parts in one of the wide angle images and the corresponding
              points in the second camera image. The 3D
              position can then be calculated using epipolar geometry.
              Finally, the selected point lights are used in a multi
              pass algorithm to draw the virtual object with shadows.
              To validate our approach, we compare the appearance
              and shadows of the synthetic objects with real objects."
}
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