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Research

Visualization Cluster

cluster

HIPerWall is a 200 mega-pixel tiled display wall consisting of fifty 30" LCDs and a cluster of Mac G5s. A distributed visualization system was developed to render large-scale datasets on HIPerWall. The designated control node broadcasts viewing parameters to all other nodes. After receiving the messages, each rendering node updates its display content.

Video: Visualization cluster.




Computation on Programmable Graphics Hardware

Hardware-assisted visualization of seismic wave propagation. From the benefits of GPU's stream processing power, the rendering speed was increased by moving intensive computation away from CPU.

Video: Ground displacement.




Large-Scale Seismic data Visualization

Alaska

Visualization of large field-measured seismic datasets. Case studies include NEIC earthquake records, SCIGN GPS network readings, and ground movement measurements obtained from various seismic networks.




Van Nuys Case Study

vannuys

The studied building is a 7-story reinforced concrete structure located in central San Fernando Valley, California. The California Strong Motion Instrumentation Program (CSMIP) manages the seismic instrumentation installed throughout this building. A detailed 3-dimensional model of the building was built.  The field measured datasets are discretely mapped onto the geometric model and used to generate temporal simulations reproducing the deformation patterns.

Video: Building's response to the 1994 Northridge Earthquake.




Parallel Computing

flow

Developed a parallel computing algorithm on a cluster of 25 machines. This approach shows a significant improvement in rendering capacity over existing methods for terrain rendering.


 

 

HIPerWall
HIPerWall
 
VizClass
VizClass
 
1994 Northridge Earthquake
1994 Northridge Earthquake
 
Mt. St. Helens
Seismic Data Visualization
 
Seattle
Seismic Data Visualization
 
Puente Hills
Seismic Data Visualization 1994 Northridge Earthquake and its aftershocks, Northridge fault, and Punte Hills blind Thrust.
 
Mt. St. Helens
Terrain Visualization
 
Van Nuys
Van Nuys Case Study
 
Flight
Flight Path Visualization
 
Van Nuys
Flight Path Visualization