Patent
Dynamic algorithm selection for volume rendering, isocontour and body extraction within a multiple-instruction, multiple-data multiprocessor
Martin R. Stytz,Ophir Frieder +1 more
- 09 Jul 1990
47
TL;DR: In this article, the authors proposed a methodology which reduces the time required to render a volume with extracted isocontours and inserted cutting plane and perform an arbitrary rotation within a three-dimensional volume.
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Abstract: This is a methodology which reduces the time required to render a volume with extracted isocontours and inserted cutting plane and perform an arbitrary rotation within a three-dimensional volume. The volume is first partitioned among the processors of a multiple-instruction, multiple-data (MIMD) multiprocessor computer. As the user indicates the isocontour to be extracted, rotation, and cutting plane to be inserted into the image space volume, each processor independently selects the optimum algorithm for rendering the volume using the indicated display parameters on its local data set. If the processor is fully behind the cutting plane, a front-to-back (FTB) volume rendering algorithm is used. If the cutting plane lies behind the cutover point, then a back-to-front (BTF) volume rendering algorithm is used, otherwise the FTB volume rendering algorithm is used.
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Citations
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Aaron Fenster,Shane Dunne,Thomas K. C. Chan,Donal B. Downey +3 more
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TL;DR: In this article, a multi-planar volumetric display system and method of operation is presented, in which a multisurface optical device is used to generate a 3D image viewable as floating in space.
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Robert L. Caulk,Sanjay Desai,Jay P. Patel +2 more
- 18 Oct 1991
TL;DR: In this article, a high performance graphics applications controller having a core processor and a coprocessor to independently perform desired graphics functions is provided, where a direct memory access (DMA) controller cooperates with the coprosor to generate source and destination addresses and employs a unique set of commands to speed operation.
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Lisa G. McIlrath
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TL;DR: In this paper, a 3D technology file of these teachings is obtained by providing an identifier for two or more circuit levels, and each identifier corresponds to each one of the one or more circuits levels.
104
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