Efficient Impostor Manipulation for Real-Time Visualization of Urban Scenery
| dc.contributor.author | Sillion, Francois | en_US |
| dc.contributor.author | Drettakis, George | en_US |
| dc.contributor.author | Bodelet, Benoit | en_US |
| dc.date.accessioned | 2015-02-15T18:05:23Z | |
| dc.date.available | 2015-02-15T18:05:23Z | |
| dc.date.issued | 1997 | en_US |
| dc.description.abstract | Urban environments present unique challenges to interactive visualization systems, because of the huge complexity of the geometrical data and the widely varying visibility conditions. This paper introduces a new framework for real-time visualisation of such urban scenes. The central concept is that of a dynamic segmentation of the dataset, into a local three-dimensional model and a set of impostors used to represent distant scenery. A segmentation model is presented, based on inherent urban structure. A new impostor structure is introduced, derived from the level-of-detail approach. Impostors combine three-dimensional geometry to correctly model large depth discontinuities and parallax, and textures to rapidly display visual detail. We present the algorithms necessary for the creation of accurate and efficient three-dimensional impostors. The implementation of our algorithms allows interactive navigation in complex urban databases, as required by many applications. | en_US |
| dc.description.number | 3 | en_US |
| dc.description.seriesinformation | Computer Graphics Forum | en_US |
| dc.description.volume | 16 | en_US |
| dc.identifier.doi | 10.1111/1467-8659.00158 | en_US |
| dc.identifier.issn | 1467-8659 | en_US |
| dc.identifier.pages | C207-C218 | en_US |
| dc.identifier.uri | https://doi.org/10.1111/1467-8659.00158 | en_US |
| dc.publisher | Blackwell Publishers Ltd and the Eurographics Association | en_US |
| dc.title | Efficient Impostor Manipulation for Real-Time Visualization of Urban Scenery | en_US |