/[gzz]/gzz/Documentation/Manuscripts/Paper/paper.tex
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revision 1.168 by tjl, Sun Dec 1 11:58:42 2002 UTC revision 1.169 by tjl, Sun Dec 1 12:02:39 2002 UTC
# Line 393  To be distinguishable, \label{secfeature Line 393  To be distinguishable, \label{secfeature
393  % XXX: Why wouldn't it always be the same?  % XXX: Why wouldn't it always be the same?
394  % - seeing different parts of the texture?  % - seeing different parts of the texture?
395  % - ambiguous perception?  % - ambiguous perception?
396  \item There should be as many potential features in the distribution  \item There should be as many possible features in the distribution
397      as possible. For example, if there were no yellow textures,      as possible. For example, if there were no yellow textures,
398      or if there were no curved lines, we would be wasting      or if there were no curved lines, we would be wasting
399      recognition potential by leaving some elements      recognition potential by leaving some elements
# Line 425  wasting recognitive power. Line 425  wasting recognitive power.
425  Indeed, entropy is maximized when the features are distributed  Indeed, entropy is maximized when the features are distributed
426  independently from each other:  independently from each other:
427  features orthogonal to human perception  features orthogonal to human perception
428  (e.g.~color, direction of fastest luminance change)  (e.g.,~color, direction of fastest luminance change)
429  should be independently random, and features not orthogonal  should be independently random, and features not orthogonal
430  (e.g. colors of neighbouring pixels)  (e.g. colors of neighbouring pixels)
431  should be correlated so as to maximize the entropy of the set  should be correlated so as to maximize the entropy
 of the connected features  
432  (e.g. pixels on a small area should correlate enough to  (e.g. pixels on a small area should correlate enough to
433  facilitate perception of contours).  facilitate perception of contours).
434    

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