Spherical harmonics scaling
US7663623B2 · kind B2 · utility
25Cited by
2References
15Claims
0Family size
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Key dates
| Filing date | Dec 18, 2006 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Apr 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/55
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, device and system is provided for providing global illumination of a scene. For example, global illumination may be provided in a rendered 3-dimensional image that may contain objects and/or light sources. Radiance functions or visibility functions may further be represented by scaling of spherical harmonics functions in the spherical harmonics domain. For example, scaling of spherical harmonics coefficients corresponding to a spherical function may be performed based on a spherical harmonics scaling transformation matrix based on an angular scaling function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.