Hasso-Plattner-Institut
  
Hasso-Plattner-Institut
Prof. Dr. Jürgen Döllner
  
 

Publications

Extended hybrid meshing algorithm for multiresolution terrain models

Paredes, E.G. and Bóo, M. and Amor, M. and Bruguera, J.D. and Döllner, J.
International Journal of Geographical Information Science, vol. 26(5):771–793 2012

DOI: http://dx.doi.org/10.1080/13658816.2011.615317

Abstract:

Hybrid terrains are a convenient approach for the representation of digital terrain models, integrating heterogeneous data from different sources. In this article, we present a general, efficient scheme for achieving interactive level-of-detail rendering of hybrid terrain models, without the need for a costly preprocessing or resampling of the original data. The presented method works with hybrid digital terrains combining regular grid data and local high-resolution triangulated irregular networks. Since grid and triangulated irregular network data may belong to different datasets, a straightforward combination of both geometries would lead to meshes with holes and overlapping triangles. Our method generates a single multiresolution model integrating the different parts in a coherent way, by performing an adaptive tessellation of the region between their boundaries. Hence, our solution is one of the few existing approaches for integrating different multiresolution algorithms within the same terrain model, achieving a simple interactive rendering of complex hybrid terrains.

Keywords:

3D modeling; 3D visualization; geovisualization; triangulated irregular networks

BibTeX file

@article{PBABD2012,
author = { Paredes, E.G. and Bóo, M. and Amor, M. and Bruguera, J.D. and Döllner, J. },
title = { Extended hybrid meshing algorithm for multiresolution terrain models },
pages = { 771--793 },
year = { 2012 },
journal = { International Journal of Geographical Information Science },
volume = { 26 },
number = { 5 }
}

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last change: Wed, 09 May 2012 14:12:28 +0200