GVU Technical Report Number:
GIT-GVU-98-12
Title:
Intent, Perception, and Out-of-Core Visualization Applied to Terrain
Authors:
Douglass Davis
Tian-yue Jiang
WIlliam RIbarsky
Nickolas Faust
Abstract:
This paper considers how out-of-core visualization applies to terrain
datasets, which are among the largest now presented for interactive
visualization and can range to sizes of 20 GB and more. It is found that
a combination of out-of-core visualization, which tends to focus on 3D
data, and visual simulation, which places an emphasis on visual perception
and real-time display of multiresolution data, results in interactive
terrain visualization with significantly improved data access and quality of
presentation. Further, the visual simulation approach provides qualities
that are useful for general data, not just terrain.
Keywords:
Out-of-core, terrain visualization, quadtree, quadnode, paging, caching,
multiresolution
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