Patent
1987-07-24
1992-04-28
Herndon, Heather R.
G06F 1520
Patent
active
051094819
ABSTRACT:
A system for quadratic and higher order interpolation of pixel color and other pixel values into a bitmap image enables enhanced shading for generation of realistic computer graphics images. The system incorporates modules for executing incremental evaluation of pixel values, utilizing forward differencing in N arbitrary directions of incremental evaluation. The system alternatively incorporates non-incremental evaluation elements for directly evaluating polynomials or executing a spline function of control points.
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Kirk David B.
Lathrop Olin G.
Voorhies Douglas A.
Herndon Heather R.
Hewlet-Packard Company
Schuette Richard F.
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