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2003
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Shear-image order ray casting volume rendering

12 years 5 months ago
Shear-image order ray casting volume rendering
This paper describes shear-image order ray casting, a new method for volume rendering. This method renders sampled data in three dimensions with image quality equivalent to the best of ray-per-pixel volume rendering algorithms (full image order), while at the same time retaining computational complexity and spatial coherence near to that of the fastest known algorithm (shear-warp). In shear-image order, as in shear-warp, the volume data set is resampled along slices parallel to a face of the volume. Unlike shear-warp, but like the texture-based methods, rays are cast through the centers of pixels of the image plane and sample points are at the intersections of rays with each slice. As a result, no post-warp step is required. Unlike texture methods, which realize shear and warp by transformations in a commodity graphics system, the shear-image ray casting methods use a new factorization that preserves memory and interpolation efficiency. In addition, a method is provided for accurately...
Yin Wu, Vishal Bhatia, Hugh C. Lauer, Larry Seiler
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where SI3D
Authors Yin Wu, Vishal Bhatia, Hugh C. Lauer, Larry Seiler
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