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16th IEEE Visualization 2005 (VIS 2005)
Hardware-Accelerated Simulated Radiography
Minneapolis, Minnesota
October 23-October 28
ISBN: 0-7803-9462-3
Daniel Laney, Lawrence Livermore National Laboratory
Steven P. Callahan, University of Utah
Nelson Max, Lawrence Livermore National Laboratory
Claudio T. Silva, University of Utah
Steven Langer, Lawrence Livermore National Laboratory
Randall Frank, Computational Engineering International
We present the application of hardware accelerated volume rendering algorithms to the simulation of radiographs as an aid to scientists designing experiments, validating simulation codes, and understanding experimental data. The techniques presented take advantage of 32-bit floating point texture capabilities to obtain solutions to the radiative transport equation for X-rays. The hardware accelerated solutions are accurate enough to enable scientists to explore the experimental design space with greater efficiency than the methods currently in use. An unsorted hexahedron projection algorithm is presented for curvilinear hexahedral meshes that produces simulated radiographs in the absorption-only regime. A sorted tetrahedral projection algorithm is presented that simulates radiographs of emissive materials. We apply the tetrahedral projection algorithm to the simulation of experimental diagnostics for inertial confinement fusion experiments on a laser at the University of Rochester.
Index Terms:
volume rendering, hardware acceleration
Citation:
Daniel Laney, Steven P. Callahan, Nelson Max, Claudio T. Silva, Steven Langer, Randall Frank, "Hardware-Accelerated Simulated Radiography," ieee_vis, pp.44, 16th IEEE Visualization 2005 (VIS 2005), 2005
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