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Conference Papers Year : 1997

Efficient Impostor Manipulation for Real-Time Visualization of Urban Scenery

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. The paper introduces a new framework for real-time visualization 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 structures. 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 algorithm 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.
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Dates and versions

inria-00510095 , version 1 (19-08-2010)

Identifiers

  • HAL Id : inria-00510095 , version 1

Cite

François X. Sillion, George Drettakis, Benoit Bodelet. Efficient Impostor Manipulation for Real-Time Visualization of Urban Scenery. Computer Graphics Forum (Proc. of Eurographics '97), 1997, Budapest, Hungary. pp.207--218. ⟨inria-00510095⟩
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