Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2011-08-30
2011-08-30
Nguyen, Kimbinh T (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000, C345S421000, C345S620000, C345S424000, C382S128000, C382S154000, C600S103000, C600S407000, C600S431000, C600S443000
Reexamination Certificate
active
08009167
ABSTRACT:
In a virtual endoscopy method, an unfolding axis substantially along an elongated lumen is divided into axis segments. Ray casting directions are selected extending generally radially from the axis segments. At least some of the ray casting directions are tilted away from a camera position. Ray casting is performed along the tilted ray casting directions to define pixel values that are arranged into an unfolded view. The ray casting employs at least one of (i) volume rendering and (ii) computing a statistical characteristic of voxels over a preselected distance (dinterval) along the ray casting direction into the lumen-defining structure.
REFERENCES:
patent: 5611025 (1997-03-01), Lorensen et al.
patent: 5782762 (1998-07-01), Vining
patent: 5920319 (1999-07-01), Vining et al.
patent: 6083162 (2000-07-01), Vining
patent: 6212420 (2001-04-01), Wang et al.
patent: 6272366 (2001-08-01), Vining
patent: 6331116 (2001-12-01), Kaufman et al.
patent: 6343936 (2002-02-01), Kaufman et al.
patent: 6366800 (2002-04-01), Vining et al.
patent: 6369812 (2002-04-01), Iyriboz et al.
patent: 6694163 (2004-02-01), Vining
patent: 6696263 (2004-02-01), Luo et al.
patent: 6928314 (2005-08-01), Johnson et al.
patent: 7081088 (2006-07-01), Geiger
patent: 7211046 (2007-05-01), Deller et
patent: 7372988 (2008-05-01), Yoakum-Stover et al.
patent: 7574247 (2009-08-01), Moreau-Gobard et al.
patent: 7609910 (2009-10-01), Geiger et al.
patent: 7640050 (2009-12-01), Glenn, Jr. et al.
patent: 2003/0152897 (2003-08-01), Geiger
patent: 2005/0018888 (2005-01-01), Zonneveld
patent: 2005/0107695 (2005-05-01), Kiraly et al.
patent: 2007/0276214 (2007-11-01), Dachille et al.
patent: 0919956 (1999-06-01), None
Bartz, D. et al.; Virtual Endoscopy System for the Planning of Endoscopic Interventions in the Ventricular System inside of the Human Brain; 1999; SOUE/BiOS 1999 Conference Proceedings.
Bartz, D.; Virtual Endoscopy in Research and Clinical Practice; 2003; Endographics.
Beaulieu, C. F., et al.; Display Modes for CT Colonography; 1999; Radiology; 212(1)203-212.
Fuchs, H., et al.; Interactive, Richly Cued Shaded Display of Multiple 3D Objects in Medical Images; 1988; SPIE;914:842-849.
Haker, S., et al.; Nondistorting Flattening Maps and the 3D Visualization of Colon CT Images; 2001.
Hoehne, K. H., et al.; Combined surface display and reformatting for the three-dimensional analysis of tomographic data; 1987; Invest. Radiology; 22:658-664.
Hoffman, K. R., et al.; Visualization and navigation techniques in CT colonography; 2001.
Raman, R., et al.; Curved-slab maximum intensity projection: method and evaluation; 2003; Radiology; 229:255-260.
Ramaswamy, K., et al.; Endoscopic exploration and measurement in 3D radiological images; 1996; SPIE Medical Imaging-Image Processing.
Robb, R. A.; Virtual (Computed) Endoscopy: Development and Evaluation Using the Visible Human Datasets; 1996; Visible Human Project Conference.
Robb, R. A., et al.; Interactive 3-D image display and analysis; 1988; SPIE-Hybrid Image and Signal Processing; 939:173-202.
Summers, R. M., et al.; Automated Polyp Detection at CT Colonography: Feasibility Assessment in a Human Population; 2001; Radiology; 219(1)51-59.
Vining, D. J., et al.; Technical Feasibility of Colon Imaging with Helical CT and Virtual Reality; 1994; Annual Meeting of American Roentgen Ray Society; Abstract.
Wan, M., et al.; Volume Rendering Based Interactive Navigation within the Human Colon; 1999; IEEE-Visualization; pp. 397-400; p. 549.
Wang, G., et al.; GI Tract Unraveling with Curved Cross Sections; 1998; IEEE Trans. on Medical Imaging; 17(2) 318-322.
Wang, G., et al.; CI Tract Unraveling in Volumetric CT; 1996; Visualization in Biomedical Computing; pp. 1-12.
Dekel Doron
Durgan Jacob S.
Fleiter Thorsten R.
Koninklijke Philips Electronics , N.V.
Nguyen Kimbinh T
LandOfFree
Virtual endoscopy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Virtual endoscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virtual endoscopy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2709957