Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2007-07-17
2007-07-17
Nguyen, Kimbinh T. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S424000, C345S428000, C345S581000, C345S582000, C345S583000, C345S589000, C345S600000, C345S601000, C345S602000, C345S606000, C345S608000
Reexamination Certificate
active
10906242
ABSTRACT:
A slice plane, oriented parallel to a viewing plane, is passed through a cuboidal dataset at regular intervals. The intersection of the slice plane with the cuboidal volume dataset results in primitives (quads, triangles, etc. depending on the angle and position of the intersection) whose vertices have position coordinates (xu, yu, zu) and 3D-texture coordinates (r, s, t). The resulting primitives are rasterized using, for example, a traditional 3D graphics pipeline wherein the 3D-texture coordinates are interpolated across the scanlines producing 3D-texture coordinates for each fragment. The resulting 3D-texture coordinates for each fragment are stored in a 2D-texture storage area. These 2D-textures are called density-textures. By preprocessing the cuboidal dataset, the rendering process becomes a compositing process. A rendering process is comprised of looking-up, for each densel in the texture, the corresponding color and opacity values in the current lookup-table. A user-specified compositing function is used to blend the values with those in the framebuffer to arrive at the final result. The final result, i.e. the values in the framebuffer, is displayed.
REFERENCES:
patent: 5630034 (1997-05-01), Oikawa et al.
patent: 5886701 (1999-03-01), Chauvin et al.
patent: 6509905 (2003-01-01), Hochmuth et al.
Lieberman, D., Volume-rendering PCI board casts rays in real-time, Electronic Engineering EE Times, Jul. 5, 1999, CMP Media Inc., Manhasset, NY.
Pfister, H., Architectures for Real-Time Volume Rendering, Elsesv ier Preprint, Aug. 7, 1998, pp. 1-15, Mitsubishi Electric Research, Cambridge, MA.
Levoy, M., Efficient Ray Tracing of Volume Data, ACM Transactions on Graphics, vol. 9, No. 3, Jul. 1990, pp. 245-261, University of North Carolina.
Levoy, M., Display of Surfaces from Volume Data, Volume Rendering, IEEE Computer Graphics & Applications, pp. 29-37, May, 1988, University of North Carolina.
Kajiya, J., The Rendering Equation, Siggraph '86, Aug. 18-22, pp. 143-150, vol. 20, No. 4, 1986, Dallas, TX.
Drebin, R. et al., Volume Rendering, Computer Graphics, vol. 22, No. 4, Aug. 1988, pp. 65-74, Siggraph 88, Atlanta, GA.
Pfister, H. et al., The VolumePro Real-Time Ray-Casting System, Siggraph 99, pp. 251-260, Los Angeles, CA.
Sato, Y. et al., Tissue Classification Based on 3D Local Intensity Structures for Volume Rendering, IEEE Transactions on Visualization and Computer Graphics, vol. 6, No. 2, Apr.-Jun. 2000, pp. 160-179.
Compositing Theory, Chapter Sixteen, Sep. 1994, pp. 179-190.
Compositing Practice, Chapater Seventeen, Nov. 1994, pp. 190-203.
Foster, N. et al., Modeling the Motion of a Hot, Turbulent Gas, pp. 1-18, Center for Human Modeling and Simulation, Univ. of Pennsylvania, Philadelphia, PA.
Cabral, B. et al., Accelerated Volume Rendering and Tomographic Reconstruction Using Texture Mapping Hardware, 7 pg., Silicon Graphics Computer Systems, Mountain View. CA.
OpenGL Architecture Review Board, Open GL Reference Manual:The Official Reference Document for OpenGL, Release 1, 1992, Silicon Graphics, Inc., Chapter 2.
H. Pfister, Architectures for real-time volume rendering, Elsevier Science B.V., pp. 1-9, 1999.
Jones Day
Micro)n Technology, Inc.
Nguyen Kimbinh T.
Pencoske Edward L.
LandOfFree
Architecture for real-time texture look-up's for volume... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Architecture for real-time texture look-up's for volume..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Architecture for real-time texture look-up's for volume... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3755924