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revision 1.5 by tjl, Thu Mar 6 07:44:01 2003 UTC revision 1.6 by tjl, Thu Mar 6 10:50:20 2003 UTC
# Line 9  Line 9 
9  \newcommand{\url}[1]{{\fontsize{9pt}{8pt}\fontfamily{phv}\fontseries{c}\selectfont{#1}}}  \newcommand{\url}[1]{{\fontsize{9pt}{8pt}\fontfamily{phv}\fontseries{c}\selectfont{#1}}}
10  \newcommand{\hyp}{\discretionary{}{}{}}  \newcommand{\hyp}{\discretionary{}{}{}}
11    
 \def\censor#1{{\sffamily\tiny ${}^{\left<\hbox{censored}\,\right>}$}}  
12    
13  \title{Representing Identity  \title{Rendering recognizably unique textures}
14  %in Focus+Context Views  % Representing Identity
15  %Hardware-Accelerated  % %in Focus+Context Views
16  by Unique Background Textures}  % %Hardware-Accelerated
17    % by Unique Background Textures}
18    
19    
20  \author{  \author{
# Line 31  Janne V. Kujala and Tuomas J. Lukka\\ Line 31  Janne V. Kujala and Tuomas J. Lukka\\
31  \maketitle  \maketitle
32    
33  \begin{abstract}  \begin{abstract}
34    
35    TJL
36    
37    We apply a rough, qualitative model of visual perception
38    to motivate
39    general principles for designing recognizably unique textures
40    for use as backgrounds for data.
41    To be reconizable,
42    the texture should produce a random feature vector in the brain
43    {\em after} visual feature extraction.
44    
45    Our motivating example is...
46    
47  We show how object identity can be visualized  We show how object identity can be visualized
48  by  by
49  unique background textures  unique background textures
# Line 54  especially in focus+context views. Line 67  especially in focus+context views.
67  %In Focus+Context views, the textures can act as visual cues in the context  %In Focus+Context views, the textures can act as visual cues in the context
68  %(information foraging).  %(information foraging).
69    
 We apply a rough, qualitative model of visual perception  
 to motivate  
 general principles for designing recognizable backgrounds.  
 To be reconizable,  
 the texture should produce a random feature vector in the brain  
 {\em after} visual feature extraction.  
   
70  We discuss our freely available hardware-accelerated implementation  We discuss our freely available hardware-accelerated implementation
71  of unique backgrounds  of unique backgrounds
72  on the NV10 and NV25 architectures, and  on the NV10 and NV25 architectures, and
# Line 110  bleaching the background around text.. Line 116  bleaching the background around text..
116  % XXX icons  % XXX icons
117  \section{Introduction}  \section{Introduction}
118    
119    TJL
120    
121  ``You are in a maze of twisty  ``You are in a maze of twisty
122  little passages, all alike''\cite{zork}.  little passages, all alike''\cite{zork}.
123  It is easy to become disoriented and lost in an environment  It is easy to become disoriented and lost in an environment
# Line 194  for browsing linked PDF documents in a f Line 202  for browsing linked PDF documents in a f
202    
203  \section{Related work}  \section{Related work}
204    
205    JVK
206    
207  \subsection{Texturing}  \subsection{Texturing}
208    
209  The {\em texture} of a surface, taken literally, is its translation-invariant statistical microstructure.  The {\em texture} of a surface, taken literally, is its translation-invariant statistical microstructure.
# Line 339  or flat 2D images or maps\cite{fc-taxono Line 349  or flat 2D images or maps\cite{fc-taxono
349    
350  \section{The XXX xupdf user interface --- the motivation for unique backgrounds}  \section{The XXX xupdf user interface --- the motivation for unique backgrounds}
351    
352    TJL
353    
354  \section{Unique Background Textures}  \section{Unique Background Textures}
355    
356    TJL
357    
358  We define a unique background texture as an easily  We define a unique background texture as an easily
359  distinguishable and recognizable texture  distinguishable and recognizable texture
360  that doesn't  that doesn't
# Line 516  in the texture ``channel''. Line 530  in the texture ``channel''.
530    
531  \section{Hardware-accelerated implementation}  \section{Hardware-accelerated implementation}
532    
533    TJL
534    
535  In this section, we discuss our hardware-accelerated implementation  In this section, we discuss our hardware-accelerated implementation
536  (libpaper)  (libpaper)
537  of unique backgrounds (papers).  of unique backgrounds (papers).
# Line 914  if the gamma is correct but the textures Line 930  if the gamma is correct but the textures
930    
931  \section{Text readability}  \section{Text readability}
932    
933    TJL
934    
935  The most commonly asked question about this work concerns  The most commonly asked question about this work concerns
936  text readability. We address this question in two different ways.  text readability. We address this question in two different ways.
937    
# Line 933  On a darker background, this approach wo Line 951  On a darker background, this approach wo
951    
952  \section{Experiences, evaluation}  \section{Experiences, evaluation}
953    
954    JVK
955    
956  \section{Software availability}  \section{Software availability}
957    
958    JVK
959    
960  An implementation of the unique backgrounds is available at  An implementation of the unique backgrounds is available at
961  \censor{\url{http://gzz.info} as part of  {\url{http://gzz.info} as part of
962  the Gzz-prototype%  the Gzz-prototype%
963  }, under the GPL license.  }, under the GPL license. XXX name change
964  Fig.~\ref{figxanalogicalexample} shows the example application  Fig.~\ref{figxanalogicalexample} shows the example application
965  discussed in introduction running with unique backgrounds  discussed in introduction running with unique backgrounds
966  generated by this implementation.  generated by this implementation.
# Line 956  generated by this implementation. Line 978  generated by this implementation.
978    
979  \section{Conclusions}  \section{Conclusions}
980    
981    TJL
982    
983  We have introduced procedurally generated unique backgrounds  We have introduced procedurally generated unique backgrounds
984  as a way of visualizing the identity of data.  as a way of visualizing the identity of data.
985  While the method is general and  While the method is general and
# Line 1093  of visualizing identity, such as unique Line 1117  of visualizing identity, such as unique
1117    
1118  \section{Acknowledgments}  \section{Acknowledgments}
1119    
1120  The authors would like to thank \censor{CANNY! Benja Fallenstein and  The authors would like to thank John Canny, Benja Fallenstein and
1121  Marketta Niemelä} for discussions.  Marketta Niemelä and Pertti Saariluoma for discussions.
1122    
1123    
1124  \bibliographystyle{plain}  \bibliographystyle{plain}

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