Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2005-06-27
2008-09-23
Tung, Kee M. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S581000, C345S421000
Reexamination Certificate
active
07427994
ABSTRACT:
A system and method for generating color gradients is provided. The system generates color gradients using techniques from geometric surface modeling. The system and method of the present invention allow designers to specify very complex gradients in a simple way. The system can employ, for example, a vector-based interpolation method and/or a pixel-based partial differential equation (PDE) interpolation methods to facilitate generation of the color gradients. In one example, input boundary curves and/or feature curves are approximated by line segments, which are then utilized to generate a triangulation approximating a smooth color gradient.
REFERENCES:
patent: 5333248 (1994-07-01), Christensen
patent: 5339387 (1994-08-01), Frankel
patent: 5367617 (1994-11-01), Goossen et al.
patent: 5592599 (1997-01-01), Lindholm
patent: 5701404 (1997-12-01), Stevens et al.
patent: 5982381 (1999-11-01), Joshi et al.
patent: 5982384 (1999-11-01), Prouty et al.
patent: 6106466 (2000-08-01), Sheehan et al.
patent: 6121976 (2000-09-01), Lu
patent: 6271861 (2001-08-01), Sargent et al.
patent: 6313840 (2001-11-01), Bilodeau et al.
patent: 6393145 (2002-05-01), Betrisey et al.
patent: 6516277 (2003-02-01), Edgecombe et al.
patent: 6563501 (2003-05-01), Sfarti
patent: 6625311 (2003-09-01), Zhu
patent: 6784896 (2004-08-01), Perani et al.
patent: 6856705 (2005-02-01), Perez et al.
patent: 2004/0090437 (2004-05-01), Uesaki et al.
patent: 0872811 (1998-03-01), None
patent: 0949591 (1999-03-01), None
patent: 0949591 (1999-03-01), None
Alyn Rockwood, et al. “Real-Time Rendering of Trimmed Surfaces”. Silicon Graphics Computer Systems, Mountain View, CA, Computer Graphics, vol. 23, No. 3, Jul. 1989.
George Celniker, et al, “Deformable Curve Surface Finite-Elements for Free-Form Shape Design,” Schlumberger Laboratory for Computer Science, Jul. 1991, 10 pgs, Cambridge, MA.
William Welch, et al., “Variational Surface Modeling,” School of Computer Science Carnegie Mellon University, 1992, 10 pgs, Pittsburgh, PA.
Coloma Ballester, et al., “Filing-In by Joint Interpolation of Vector Fields and Gray Levels,” IEEE Transactions on Image Processing, Aug. 2001, pp. 1200-1211, vol. 10, No. 8.
Murray, et al., “Graphics Data,” http:/
etghost.narod.ru/gff/graphics/book/ch01—03.htm, 1996.
European Search Report, EP30047RK900peu, mailed Feb. 11, 2005.
Gangnet Michel J.
Kallay Michael
Lounsbery John Michael
Perez Patrick
Stollnitz Eric J.
Amin Turocy & Calvin LLP
Amini Javid A
Microsoft Corporation
Tung Kee M.
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