Real-time, continuous level of detail rendering of height fields
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Smooth view-dependent level-of-detail control and its application to terrain rendering
Proceedings of the conference on Visualization '98
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With the rapid development of Earth observation technologies, raster data has become the main Geographic Information System (GIS) data source. GIS should be able to manage and process huge raster data sets. In this paper, the problem of 3-dimensional visualization of huge DEM data sets and its corresponding images data sets in GIS was addressed. A real-time delamination method based on raster characteristics of DEM and image data has been developed. A simple geometry algorithm was used to implement dynamic Level of Division (LOD) delamination of DEM and image data and to realize real-time 3-dimensional visualization of huge DEM and image data set based on RDBMS management.