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VIS
2008
IEEE

Volume MLS Ray Casting

15 years 23 days ago
Volume MLS Ray Casting
The method of Moving Least Squares (MLS) is a popular framework for reconstructing continuous functions from scattered data due to its rich mathematical properties and well-understood theoretical foundations. This paper applies MLS to volume rendering, providing a unified mathematical framework for ray casting of scalar data stored over regular as well as irregular grids. We use the MLS reconstruction to render smooth isosurfaces and to compute accurate derivatives for high-quality shading effects. We also present a novel, adaptive preintegration scheme to improve the efficiency of the ray casting algorithm by reducing the overall number of function evaluations, and an efficient implementation of our framework exploiting modern graphics hardware. The resulting system enables high-quality volume integration and shaded isosurface rendering for regular and irregular volume data.
Christian Ledergerber, Gaël Guennebaud, Miriah
Added 03 Nov 2009
Updated 04 Nov 2009
Type Conference
Year 2008
Where VIS
Authors Christian Ledergerber, Gaël Guennebaud, Miriah Meyer, Moritz Bächer, Hanspeter Pfister
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