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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head> <title>Description of diskIOR</title> <meta name="keywords" content="diskIOR"> <meta name="description" content="diskIOR - applies disk-shaped inhibition of return."> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="generator" content="m2html © 2003 Guillaume Flandin"> <meta name="robots" content="index, follow"> <link type="text/css" rel="stylesheet" href="../m2html.css"></head><body><a name="_top"></a><div><a href="../index.html">Home</a> > <a href="#">mfiles</a> > diskIOR.m</div><!--<table width="100%"><tr><td align="left"><a href="../index.html"><img alt="<" border="0" src="../left.png"> Master index</a></td><td align="right"><a href="index.html">Index for .\mfiles <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>diskIOR</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>diskIOR - applies disk-shaped inhibition of return.</strong></div><h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>function wta = diskIOR(oldWTA,winner,params) </strong></div><h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre class="comment"> diskIOR - applies disk-shaped inhibition of return. wta = diskIOR(oldWTA,winner,saliencyParams) Applies disk-shaped inhibition of return to the winner-take-all structure oldWTA at position winner and returns the result as wta. The radius of the disk is taken from params.foaSize. See also <a href="applyIOR.html" class="code" title="function wta = applyIOR(oldWTA,winner,params,varargin)">applyIOR</a>, <a href="shapeIOR.html" class="code" title="function wta = shapeIOR(wta,winner,params,shapeData)">shapeIOR</a>, <a href="initializeWTA.html" class="code" title="function wta = initializeWTA(salmap,salParams)">initializeWTA</a>, <a href="defaultSaliencyParams.html" class="code" title="function params = defaultSaliencyParams(varargin)">defaultSaliencyParams</a>, <a href="dataStructures.html" class="code" title="">dataStructures</a>.</pre></div><!-- crossreference --><h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>This function calls:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="fatal.html" class="code" title="function fatal(message)">fatal</a> fatal(message) - exits with a fatal error message.</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="applyIOR.html" class="code" title="function wta = applyIOR(oldWTA,winner,params,varargin)">applyIOR</a> applyIOR - applies inhibition of return.</li><li><a href="shapeIOR.html" class="code" title="function wta = shapeIOR(wta,winner,params,shapeData)">shapeIOR</a> shapeIOR - applies shape-based inhibition of return.</li></ul><!-- crossreference --><h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre>0001 <span class="comment">% diskIOR - applies disk-shaped inhibition of return.</span>0002 <span class="comment">%</span>0003 <span class="comment">% wta = diskIOR(oldWTA,winner,saliencyParams)</span>0004 <span class="comment">% Applies disk-shaped inhibition of return to the</span>0005 <span class="comment">% winner-take-all structure oldWTA at position winner</span>0006 <span class="comment">% and returns the result as wta. The radius of the</span>0007 <span class="comment">% disk is taken from params.foaSize.</span>0008 <span class="comment">%</span>0009 <span class="comment">% See also applyIOR, shapeIOR, initializeWTA, defaultSaliencyParams, dataStructures.</span>0010 0011 <span class="comment">% This file is part of the SaliencyToolbox - Copyright (C) 2006-2007</span>0012 <span class="comment">% by Dirk B. Walther and the California Institute of Technology.</span>0013 <span class="comment">% See the enclosed LICENSE.TXT document for the license agreement.</span>0014 <span class="comment">% More information about this project is available at:</span>0015 <span class="comment">% http://www.saliencytoolbox.net</span>0016 0017 <a name="_sub0" href="#_subfunctions" class="code">function wta = diskIOR(oldWTA,winner,params)</a>0018 0019 <span class="keyword">if</span> (params.foaSize < 0)0020 <a href="fatal.html" class="code" title="function fatal(message)">fatal</a>([<span class="string">'invalid params.foaSize: '</span> num2str(params.foaSize)]);0021 <span class="keyword">end</span> 0022 0023 wta = oldWTA;0024 0025 xx = [1:size(wta.sm.V,2)] - winner(2);0026 yy = [1:size(wta.sm.V,1)] - winner(1);0027 [x,y] = meshgrid(xx,yy);0028 d = x.*x + y.*y;0029 0030 pampl = 0.1 * wta.sm.V(winner(1),winner(2));0031 mampl = 1e-4 * pampl;0032 0033 <span class="comment">% this exponent should be '+1' for Matlab notation and '-1', because</span>0034 <span class="comment">% foaSize is interpreted as radius here, not as diameter</span>0035 psdev = 0.3 * params.foaSize / 2^params.levelParams.mapLevel;0036 0037 msdev = 4.0 * psdev;0038 g = pampl * exp(-0.5 * d / psdev^2) - <span class="keyword">...</span>0039 mampl * exp(-0.5 * d / msdev^2);0040 0041 wta.sm.Ginh = wta.sm.Ginh + g;</pre></div><hr><address>Generated on Fri 07-Sep-2007 14:42:18 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> © 2003</address></body></html>⌨️ 快捷键说明
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