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SIGGRAPH
1987
ACM
13 years 8 months ago
Energy constraints on parameterized models
Andrew P. Witkin, Kurt W. Fleischer, Alan H. Barr
SIGGRAPH
1987
ACM
13 years 8 months ago
Elastically deformable models
Abstract: The theory of elasticity describes deformable materials such as rubber, cloth, paper, and flexible metals. We employ elasticity theory to construct differential equations...
Demetri Terzopoulos, John C. Platt, Alan H. Barr, ...
SIGGRAPH
1987
ACM
13 years 8 months ago
Direct least-squares fitting of algebraic surfaces
In the course of developing a system for fitting smooth curves to camera input we have developed several direct (i.e. noniterative) methods for fitting a shape (line, circle, conic...
Vaughan R. Pratt
SIGGRAPH
1987
ACM
13 years 8 months ago
Flocks, herds and schools: A distributed behavioral model
The aggregate motion of a flock of birds, a herd of land animals, or a school of fish is a beautiful and familiar part of the natural world. But this type of complex motion is rar...
Craig W. Reynolds
SIGGRAPH
1987
ACM
13 years 8 months ago
Generating antialiased images at low sampling densities
Ray tracing produces point samples of an image from a 3-D model. Constructing an antialiased digital picture from point samples is difficult without resorting to extremely high sa...
Don P. Mitchell