Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2005-11-01
2005-11-01
Nguyen, Kimbinh T. (Department: 2671)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C345S419000, C345S424000, C345S427000, C345S582000, C345S649000
Reexamination Certificate
active
06961058
ABSTRACT:
A method and system for efficient synthesis of photorealistic free-form knitwear, where a single cross-section of yarn serves as the basic primitive for modeling entire articles of knitwear. This primitive, called the lumislice, describes radiance from a yarn cross-section based on fine-level interactions, including occlusion, shadowing, and multiple scattering, among yarn fibers. By representing yarn as a sequence of identical but rotated cross-sections, the lumislice can effectively propagate local microstructure over arbitrary stitch patterns and knitwear shapes. This framework accommodates varying levels of detail and capitalizes on hardware-assisted transparency blending. To further enhance realism, a technique for generating soft shadows from yarn is also introduced.
REFERENCES:
patent: 5471565 (1995-11-01), Tsujido et al.
patent: 6018423 (2000-01-01), Takahashi
patent: 6246416 (2001-06-01), Stam
Groller et al. “Modeling and Visualization of Knitwear”, IEEE 1995, pp. 302-310.
Neyret “Modeling, Animating, and Rendering Complex Scenes using Volumetric textures”, IEEE 1998, pp. 55-70.
Westin et al. “Predicting Reflectance Functions from Complex Surfaces”, ACM 1992.
Hanrahan “Reflection from Layered Surfaces due to Subsurfcae Scattering”, ACM 1993, pp. 165-174.
Ying-Qu Xu, Yanyun Chen, Stephen Lin, Hua Zhong, Enhua Wu, Baining Guo, Heung-Yeung Shum, Photorealistic Rendering of Knitwear Using The Lumislice, ACM Siggraph 2001, Aug. 12-17, 2001, pp. 391-398, Los Angeles California.
Hua Zhong, Ying-Qing Xu, Baining Guo, and Heung-Yeung Shum, Realistic and Efficient Rendering of Free-form Knitwear, The Journal of Visualization and Computer Animation, 2001, pp. 13-22, vol. 12.
Jerome Lengyel, Emil Praun, Adam Finkelstein, and Hughes Hoppe, Real-Time Fur over Arbitrary Surfaces, Proceedings of the ACM Symposium on Inter-active 3D Graphics, Mar. 2001, pp. 227-232.
Steven J. Gortler, Radek Grzeszczuk, Richard Szeliski, Michael F. Cohen, The Lumigraph, Proceedings of Siggraph 96, pp. 43-54, Aug. 1996.
E. Groller, R. T. Rau, and W. Strasser, Modeling Textiles as Three Dimensional Textures, Proceedings of the Eurographics Workshop, Jun. 1996, pp. 205-214, Springer Wien, New York, USA.
Jerome Lengyel, Real-time Fur, Proceedings of thye Eurographics Workshop on Rendering, Jun. 2000, pp. 243-256, Springer Wien, New York, USA.
Chen Yanyun
Guo Baining
Lin Steve
Shum Heung-Yeung
Xu Ying-Qing
Lee & Hayes PLLC
Nguyen Kimbinh T.
LandOfFree
Macrostructure modeling with microstructure reflectance slices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Macrostructure modeling with microstructure reflectance slices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Macrostructure modeling with microstructure reflectance slices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3505349