325 |
random field\cite{cross83markov,geman84stochastic,turk91arbitrary}. |
random field\cite{cross83markov,geman84stochastic,turk91arbitrary}. |
326 |
% FIXME: grammar |
% FIXME: grammar |
327 |
% XXX: there's overlap between the enumerated cases |
% XXX: there's overlap between the enumerated cases |
328 |
|
As a particular example, the Starfish\cite{starfish} program uses procedural |
329 |
|
texturing for generating random wallpaper textures. |
330 |
|
|
331 |
%Textures have also been modeled statistically, |
%Textures have also been modeled statistically, |
332 |
%as samples from a probability distribution on a random field. |
%as samples from a probability distribution on a random field. |
355 |
by a nonlinearity and then another set of filters to extract features |
by a nonlinearity and then another set of filters to extract features |
356 |
(see, e.g., %Heeger |
(see, e.g., %Heeger |
357 |
\cite{heeger95pyramid}). |
\cite{heeger95pyramid}). |
|
%FIXME: grammar and citation |
|
358 |
There is also physiological evidence of the filtering processes: |
There is also physiological evidence of the filtering processes: |
359 |
%The first stages |
%The first stages |
360 |
%of visual perception |
%of visual perception |