Computer graphics processing and selective visual display system – Computer graphics processing – Adjusting level of detail
Reexamination Certificate
2006-10-27
2009-12-29
Sajous, Wesner (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Adjusting level of detail
C345S600000, C345S591000, C345S589000, C345S606000, C358S518000, C358S525000, C382S167000, C382S254000, C382S274000, C382S300000, C356S402000, C356S405000, C427S008000, C427S469000
Reexamination Certificate
active
07639255
ABSTRACT:
A computer-implemented method for displaying on a color display device a realistic color of a paint coating comprising the following steps: (A) identify L*, a* b* color values at least three different angles for a paint coating from a data base; (B) convert the at least three angle L*, a* b* color values to tristimulus X, Y, Z values; (C) develop continuous function equation for each tristimulus X, Y, Z values vs. aspecular angle via computer implementation and calculate the range of angles to be displayed; (D) calculate a range of aspecular angles required to display the object; (E) calculate R,G,B values from tristimulus values over the range of aspecular angles and determine maximum saturation of R,G,B values and bring into range allowed by color display device; (F) determine statistical texture function of paint coating to be simulated; and (G) apply statistical texture function to the R,G,B values of step (E) and display color pixels on color display device to show realistic color of paint coating.
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Benton Daniel A.
Brosmer Gerard T.
Canning, Jr. Robert Vincent
Owens Aaron J.
Rodrigues Allan Blase Joseph
E.I. du Pont de Nemours and Company
Sajous Wesner
Xu Gann G.
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