Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing
Reexamination Certificate
2011-05-03
2011-05-03
Le, John H (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Measured signal processing
C382S154000, C702S085000
Reexamination Certificate
active
07937245
ABSTRACT:
Embodiments are directed to modifying an existing scheme for providing translucent illumination in order to take account of subsurface scattering. The color of a selected point of a translucent object can be determined using existing methods. The existing methods need not take subsurface scattering into account. Then, a contribution to the color at the selected point due to subsurface scattering may be calculated. The contribution due to subsurface scattering may be calculated based on a photon map. Embodiments of the invention also include the use of different types of photon maps. In some embodiments, a standard photon map may be used. In other embodiments, a photon map may be defined in a manner similar to a depth map. Thus, the entries of a photon map may be defined in terms of an angle from a light source and a distance between an object's surface and a light source.
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Powell Alexander P.
Tartaglia Bruce Nunzio
DreamWorks Animation LLC
Le John H
Morrison & Foerster / LLP
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