/[fenfire]/journals/plans/SA_2003.rst
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revision 1.136 by tjl, Wed May 14 12:07:57 2003 UTC revision 1.137 by jvk, Wed May 14 12:12:04 2003 UTC
# Line 494  there is no real-world analogue. Line 494  there is no real-world analogue.
494  Text filtering  Text filtering
495  ''''''''''''''  ''''''''''''''
496    
 JVK  
   
497  Most user interfaces only use pre-rendered character  Most user interfaces only use pre-rendered character
498  bitmaps of the font, which forces text to be  bitmaps of the font, which forces text to be
499  drawn on straight horizontal lines with constant size  drawn on straight horizontal lines with constant size
# Line 516  of per-pixel operations has been increas Line 514  of per-pixel operations has been increas
514  possible to run small *fragment programs* for each rendered pixel.  possible to run small *fragment programs* for each rendered pixel.
515  This flexibility allows us to overcome the restrictions in the  This flexibility allows us to overcome the restrictions in the
516  texture filtering.  texture filtering.
   
517  However, designing such filters in an *ad hoc* fashion is  However, designing such filters in an *ad hoc* fashion is
518  extremely cumbersome and error-prone. What is needed is a suitable  extremely cumbersome and error-prone; a more
519  mathematical framework for modeling the  formal approach for evaluating the results of
520  *perceptual* qualities of rendered text.  different filtering methods is needed.
521    
522  The goals in this area are the development of the mathematical framework  The goals in this area are the development of a mathematical framework
523  for qualitatively  for modeling the *perceptual* qualities of rendered text
524  XXX  as well as experimental evaluation of the models.
525  As one theoretical approach for modeling the readability  
526  we can use the correlation function of the rendered text.  As one theoretical approach for the readability modeling
527    we plan to use the correlation function of the rendered text.
528    There have not been much research on this approach in
529    graphics context.
530    However, we hope to be able to apply our earlier experience
531    on Bayesian methods and similar models.
532    
533    
534  Unique background textures  Unique background textures

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