Display of Surfaces from Volume Data
IEEE Computer Graphics and Applications
Volume rendering by adaptive refinement
The Visual Computer: International Journal of Computer Graphics
Integrating volume data analysis and rendering on distributed memory architectures
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
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IEEE Computer Graphics and Applications
Fast volume rendering using a shear-warp factorization of the viewing transformation
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
A compact volume rendering accelerator
VVS '94 Proceedings of the 1994 symposium on Volume visualization
Cube-3: a real-time architecture for high-resolution volume visualization
VVS '94 Proceedings of the 1994 symposium on Volume visualization
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CVRMed '95 Proceedings of the First International Conference on Computer Vision, Virtual Reality and Robotics in Medicine
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ISCA '77 Proceedings of the 4th annual symposium on Computer architecture
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HWWS '97 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
EM-Cube: an architecture for low-cost real-time volume rendering
HWWS '97 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
VIZARD—visualization accelerator for realtime display
HWWS '97 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
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HWWS '99 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
GI-cube: an architecture for volumetric global illumination and rendering
HWWS '00 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
VoxelCache: a cache-based memory architecture for volume graphics
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
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EGGH'96 Proceedings of the Eleventh Eurographics conference on Graphics Hardware
Graphics algorithms on field programmable function arrays
EGGH'96 Proceedings of the Eleventh Eurographics conference on Graphics Hardware
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EGGH'96 Proceedings of the Eleventh Eurographics conference on Graphics Hardware
Evaluation of a real-time direct volume rendering system
EGGH'96 Proceedings of the Eleventh Eurographics conference on Graphics Hardware
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The basics of a parallel real-time volume visualization architecture are introduced. Volume data is divided into subcubes that are distributed among multiple image processors and stored in their private voxel memories. Rays fall into ray segments at the subcube borders. Each image processor is responsible for the ray segments within its assigned subcubes. Results of the ray segments are passed to the image processor where the ray continues. The enumeration of resampling points on the ray segments and the interpolation at resampling points is accelerated by the voxel processor. The voxel processor can additionally compute a normalized gradient vector at a resampling point used as a surface normal estimation for shading calculations. In the paper the focus is on operation and hardware implementation of this pipeline processor and the organization of voxel memory. The instruction set of the voxel processor is explained. A performance of 20 images per second for a 2563 voxel volume and 16 image processors can be achieved.