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AFRIGRAPH
2009
ACM
13 years 9 months ago
Using an implicit min/max KD-tree for doing efficient terrain line of sight calculations
The generation of accurate Line of Sight (LOS) visibility information consumes significant resources in large scale synthetic environments such as many-on-many serious games and b...
Bernardt Duvenhage
ICDE
2007
IEEE
137views Database» more  ICDE 2007»
14 years 7 months ago
SAO: A Stream Index for Answering Linear Optimization Queries
Linear optimization queries retrieve the top-K tuples in a sliding window of a data stream that maximize/minimize the linearly weighted sums of certain attribute values. To effici...
Gang Luo, Kun-Lung Wu, Philip S. Yu
VISUALIZATION
1998
IEEE
13 years 9 months ago
Large scale terrain visualization using the restricted quadtree triangulation
Real-time rendering of triangulated surfaces has attracted growing interest in the last few years. However, interactive visualization of very large scale grid digital elevation mo...
Renato Pajarola
CGF
2008
124views more  CGF 2008»
13 years 5 months ago
Fast Soft Self-Shadowing on Dynamic Height Fields
We present a new, real-time method for rendering soft shadows from large light sources or lighting environments on dynamic height fields. The method first computes a horizon map f...
John Snyder, Derek Nowrouzezahrai
ICDE
2004
IEEE
259views Database» more  ICDE 2004»
14 years 7 months ago
Querying about the Past, the Present, and the Future in Spatio-Temporal
Moving objects (e.g., vehicles in road networks) continuously generate large amounts of spatio-temporal information in the form of data streams. Efficient management of such strea...
Jimeng Sun, Dimitris Papadias, Yufei Tao, Bin Liu