Image analysis – Applications – Biomedical applications
Reexamination Certificate
2006-04-18
2006-04-18
Miriam, Daniel (Department: 2625)
Image analysis
Applications
Biomedical applications
C382S285000, C378S004000
Reexamination Certificate
active
07031505
ABSTRACT:
The present invention relates to a method for generating an 2-D projection directly from a 3-D volume data, the method comprising the steps of determining a viewing direction vector in a viewing frustum, determining a major axis of the direction vector, resampling the volume data in the direction of the major axis, applying a shear factorization to the resampled data; and rendering the factorized data. The method provides a singularly warped image which avoids have to patch images from multiple warp functions which, in turn, improves the quality of the final image. Finally, the image allows a scene to be rendered from within the scene itself. The invention can be applied to medical imaging and enable a surgeon to view an image such as a CT scan with perspective as well as from within the scan itself, providing the surgeon with an invaluable tool.
REFERENCES:
patent: 5787889 (1998-08-01), Edwards et al.
patent: 5803082 (1998-09-01), Stapleton et al.
patent: 5956418 (1999-09-01), Aiger et al.
patent: 6002738 (1999-12-01), Cabral et al.
patent: 6167297 (2000-12-01), Benaron
patent: 6330356 (2001-12-01), Sundareswaran et al.
patent: 6553152 (2003-04-01), Miller et al.
Lacroute, “Real-time volume rendering on shared memory multiprocessors using the shear-warp factorization”, IEEE Parallel Rendering Symposium, pp. 15-22, Atlanta, GA, USA, Oct. 1995.
He and Haufman, “Fast Stereo Volume Rendering”,IEEE Visualization: Proceedings of the 7th conference on Visualization '96 , pp. 49-56, 466, San Francisco, California, USA, 1996.
Lacroute, “Analysis of a Parallel Volume Rendering System Based on the Shear-Warp Factorization”, IEEE Transactions on Visualization and Computer Graphics, vol. 2, No. 3, pp. 218-231, Sep. 1996.
Lacroute and Levoy, “Fast Volume Rendering Using a Shear-Warp Factorization of the Viewing Transformation”, International Conference on Computer Graphics and Interactive Techniques: Proceedings of the 21st annual conference on Computer graphics and interactive techniques , pp. 451-458, Orlando, Florida, USA, Jul., 1994.
Lacroute, “Fast Volume Rendering Using a Shear-Warp Factorization of the Viewing Transformation”, Ph.D. dissertation, Technical Report CSL-TR-95-678, Stanford University, chapter 3, pp. 29-43, 1995.
Azarian Seyed
Cedara Software Corp.
Miriam Daniel
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