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DOI: 10.4230/OASIcs.VLUDS.2011.13
URN: urn:nbn:de:0030-drops-37389
URL: http://drops.dagstuhl.de/opus/volltexte/2012/3738/
Westerteiger, Rolf ; Gerndt, Andreas ; Hamann, Bernd

Spherical Terrain Rendering using the hierarchical HEALPix grid

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Abstract

We present an interactive spherical terrain rendering system employing a hierarchical subdivision of the HEALPix coordinate system using quadtrees. Compared to other parameterizations, the scheme avoids singularities and allows for efficient fusion of mixed-resolution digital elevation models and imagery. A Level-of-Detail heuristic is used to guarantee both high performance and visual fidelity. Unified treatment of DEM and imagery data is achieved by performing the HEALPix projection within a GPU shader. The system is applied to the exploration of Mars, using both MOLA (NASA) and HRSC (German Aerospace Center) data sets.

BibTeX - Entry

@InProceedings{westerteiger_et_al:OASIcs:2012:3738,
  author =	{Rolf Westerteiger and Andreas Gerndt and Bernd Hamann},
  title =	{{Spherical Terrain Rendering using the hierarchical HEALPix grid}},
  booktitle =	{Visualization of Large and Unstructured Data Sets: Applications in Geospatial Planning, Modeling and Engineering - Proceedings of IRTG 1131 Workshop 2011 },
  pages =	{13--23},
  series =	{OpenAccess Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-46-0},
  ISSN =	{2190-6807},
  year =	{2012},
  volume =	{27},
  editor =	{Christoph Garth and Ariane Middel and Hans Hagen},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2012/3738},
  URN =		{urn:nbn:de:0030-drops-37389},
  doi =		{http://dx.doi.org/10.4230/OASIcs.VLUDS.2011.13},
  annote =	{Keywords: terrain rendering}
}

Keywords: terrain rendering
Seminar: Visualization of Large and Unstructured Data Sets: Applications in Geospatial Planning, Modeling and Engineering - Proceedings of IRTG 1131 Workshop 2011
Issue date: 2012
Date of publication: 12.10.2012

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