Research on three-dimensional visualization based on virtual reality and Internet
2007
To disclose and display water information, a three-dimensional visualization system based on Virtual Reality (VR)
and Internet is researched for demonstrating "digital water conservancy" application and also for routine
management of reservoir. To explore and mine in-depth information, after completion of modeling high resolution
DEM with reliable quality, topographical analysis, visibility analysis and reservoir volume computation are studied.
And also, some parameters including slope, water level and NDVI are selected to classify easy-landslide zone in
water-level-fluctuating zone of reservoir area. To establish virtual reservoir scene, two kinds of methods are used
respectively for experiencing immersion, interaction and imagination (3I). First virtual scene contains more detailed
textures to increase reality on graphical workstation with virtual reality engine Open Scene Graph (OSG). Second
virtual scene is for internet users with fewer details for assuring fluent speed.
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