Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
1998-12-04
2001-07-24
Zimmerman, Mark (Department: 2671)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
Reexamination Certificate
active
06266066
ABSTRACT:
SUMMARY OF THE INVENTION
The invention relates generally to gathering and interpreting illumination information for input to computer graphics applications. One embodiment of the invention provides a method. The method includes obtaining information from an illuminated region, wherein the illuminated region is generated by passing light from an illumination source through an aperture and impinging that light on a surface; determining a quality of the illumination source derived from the information; and generating an output for use in a computer application, wherein the output is indicative of a quality of the illumination source.
Another embodiment of the invention provides an input system. The input system includes an opaque plate having an aperture, a video input device and a frosted plate interposed between the video input device and the opaque plate. In this embodiment, light from an illumination source passing through the aperture impinges on the frosted plate, thereby producing an illuminated region on the frosted plate. The illuminated region on the frosted plate is indicative of at least one quality of the illumination source, and is visible to the video input device through the frosted plate. Other embodiments of the invention include methods, apparatus, systems and machine-readable medium of varying scope.
REFERENCES:
patent: 4386345 (1983-05-01), Narveson et al.
patent: 5270818 (1993-12-01), Ottenstein
patent: 5500530 (1996-03-01), Gregoris
patent: 5734439 (1998-03-01), Wirbitzke et al.
patent: 5952992 (1999-09-01), Helms
Intel Corporation
Sautiago Euvique L.
Schwegman Lundberg Woessner & Kluth P.A.
Zimmerman Mark
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