Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2007-01-23
2007-01-23
Chauhan, Ulka (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000, C345S421000
Reexamination Certificate
active
10299958
ABSTRACT:
A computer graphics system generates a pixel value for a pixel in an image, the pixel value being representative of a point in a scene as recorded on an image plane of a simulated camera, the computer graphics system comprising a sample point generator and a function evaluator. The sample point generator is configured to generate a set of sample points, at least one sample point being generated using at least one dependent sample, the at least one dependent sample comprising at least one element of a low-discrepancy sequence offset by at least one element of another low-discrepancy sequence. The function evaluator is configured to generate at least one value representing an evaluation of a selected function at one of the sample points generated by the sample point generator, the value generated by the function evaluator corresponding to the pixel value.
REFERENCES:
patent: 6028606 (2000-02-01), Kolb et al.
patent: 6529193 (2003-03-01), Herken et al.
Alexander Keller, “Instant Radiosity”, ACM Proceedings of the 24th annual conference on Computer graphics and interactive techniques table of contents, pp. 49-56, Pub Aug. 1997.
Ladislav Kocis, William J. Whiten, “Computational Investigations of Low-Discrepancy Sequences”, ACM Transactions of Mathematical Software, vol. 23, No. 2, Jun. 1997, pp. 266-274, Pub 1997.
Tien-Tsin Wong, Wai-Shung Luk, Pheng-Ann Heng, “Sampling with Hammersley and Halton Points”, ACM Journal of Graphics Tools, vol. 2, Issue 2, Pub 1997, first six pages.
Chauhan Ulka
Hajnik Daniel F.
Jacobs David A.
Jacobs & Kim LLP
Mental Images GmbH
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