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<table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 style='mso-cellspacing:0cm;border:solid #666666 1.0pt;mso-border-alt:solid #666666 .75pt; mso-yfti-tbllook:1184;mso-padding-alt:0cm 0cm 0cm 0cm'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes;height:15.0pt'> <td style='border:solid white 1.0pt;mso-border-alt:solid white .75pt; padding:0cm 0cm 0cm 15.0pt;height:15.0pt'> <p class=MsoNormal><b><span lang=EN-US style='font-size:11.5pt;font-family: "Tahoma",sans-serif;color:#DFEFFF'>Spectral Residual: the intuition<o:p></o:p></span></b></p> </td> </tr> <tr style='mso-yfti-irow:1;mso-yfti-lastrow:yes'> <td valign=top style='border:none;padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>There is a chicken-egg dilemma on object detection and recognition: before an object is <strong><span style='font-family:"Tahoma",sans-serif'>IDENTIFIED</span></strong>, it must be <strong><span style='font-family:"Tahoma",sans-serif'>DETECTED</span></strong>; while to <strong><span style='font-family:"Tahoma",sans-serif'>DETECT</span></strong> an object, we must develop a system to <strong><span style='font-family: "Tahoma",sans-serif'>IDENTIFY</span></strong> it.<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>To crack this problem, I prefer a two-stage architecture proposed by Rensink, and implemented by Walther. During the first stage, &quot;perceptual blobs&quot;, or &quot;proto-objects&quot; are detected by plain detection algorithms. Then identification mechanisms work directly on these proto-objects.<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>This architecture suggests two things:<o:p></o:p></span></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt: auto;margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1; tab-stops:list 36.0pt'><![if !supportLists]><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif;mso-fareast-font-family: Tahoma'><span style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span lang=EN-US style='font-size:9.0pt; font-family:"Tahoma",sans-serif'>In order to mimic this early stage visual processing, we may not resort to the information that would be available only in late stages. <o:p></o:p></span></p> <p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt: auto;margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1; tab-stops:list 36.0pt'><![if !supportLists]><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif;mso-fareast-font-family: Tahoma'><span style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><![endif]><span lang=EN-US style='font-size:9.0pt; font-family:"Tahoma",sans-serif'>The result of the first stage may be crude, in some cases the proto-objects are not actual objects. However, if we expect otherwise, we are asking the detecting system to IDENTIFY - which is obviously unattainable given the computational constrains. <o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>The incentive for Spectral Residual is plain and straightfoward: I am composing an early stage attention model, so this model must be as simple as possible, free of training or hand-lebeling, and most important, no parameter tuning.<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>Given these extremely tough constrains, I failed to find a common property shared by different targets, but there is one property for backgrounds in spectral domain. By eliminating the homogenous background, the &quot;residual&quot; parts are detected as proto-objects.<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>Spatial local cues are primary information used in nowadays model. But what makes my spectral residual approach unique, is the SPECTRAL representation. In the field of vision, the spectral representation recieves much less attention than it deserves. As far as I know, the most renowned utilization of the Fourier spectrum is Oliva's <a href="http://cvcl.mit.edu/"><b>Gist of the Scene</b></a>.<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>The oblivion of the Fourier spectrum may be due to a long held idea that information behind the amplitude spectrum is only trivial (see Chapter 7 of <em><span style='font-family:"Tahoma",sans-serif'>Computer Vision</span></em> by Forsyth for reference). But as demonstrated by Spectral Residual, we believe there is gold behind a mess of the Fourier spectrum. <o:p></o:p></span></p> </td> </tr> </table> </td> </tr> <tr style='mso-yfti-irow:1'> <td style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <p><span lang=EN-US>&nbsp;</span></p> </td> </tr> <tr style='mso-yfti-irow:2'> <td valign=top style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;mso-cellspacing:0cm;border:solid #666666 1.0pt; mso-border-alt:solid #666666 .75pt;mso-yfti-tbllook:1184;mso-padding-alt: 0cm 0cm 0cm 0cm'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes;height:15.0pt'> <td width="100%" style='width:100.0%;border:solid white 1.0pt;mso-border-alt: solid white .75pt;padding:0cm 0cm 0cm 15.0pt;height:15.0pt'> <p class=MsoNormal><span class=style51><b><span lang=EN-US style='font-size:11.5pt;font-family:"Tahoma",sans-serif'>5 lines</span></b></span><b><span lang=EN-US style='font-size:11.5pt;font-family:"Tahoma",sans-serif; color:#DFEFFF'> of MATLAB codes to implement Spectral Residual<o:p></o:p></span></b></p> </td> </tr> <tr style='mso-yfti-irow:1;mso-yfti-lastrow:yes'> <td valign=top style='border:none;padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p class=style1><span lang=EN-US>clear<br> clc</span></p> <p class=style1><span class=style21><span lang=EN-US>%% Read image from file </span></span><span lang=EN-US><br> inImg = im2double(rgb2gray(imread(<span class=style31>'yourImage.jpg'</span>)));<br> inImg = imresize(inImg, [64, 64], 'bilinear');</span></p> <p class=style1><span class=style21><span lang=EN-US>%% Spectral Residual</span></span><span lang=EN-US><br> <span class=style51>myFFT = fft2(inImg); </span><span style='color:red'><br> <span class=style51>myLogAmplitude = log(abs(myFFT));</span><br> <span class=style51>myPhase = angle(myFFT);</span><br> <span class=style51>mySpectralResidual = myLogAmplitude - imfilter(myLogAmplitude, fspecial('average', 3), 'replicate'); </span><br> <span class=style51>saliencyMap = abs(ifft2(exp(mySpectralResidual + i*myPhase))).^2; </span></span></span></p> <p><span class=style21><span lang=EN-US style='font-size:9.0pt;font-family: "Courier New"'>%% After Effect</span></span><span lang=EN-US style='font-size:9.0pt;font-family:"Courier New"'><br> <span class=style11>saliencyMap = imfilter(saliencyMap, fspecial('disk', 3));</span><br> <span class=style11>saliencyMap = mat2gray(saliencyMap);</span><br> <span class=style11>imshow(saliencyMap);</span></span><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'><o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>&nbsp;<o:p></o:p></span></p> </td> </tr> </table> </td> </tr> <tr style='mso-yfti-irow:3'> <td style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <p><span lang=EN-US>&nbsp;</span></p> </td> </tr> <tr style='mso-yfti-irow:4'> <td valign=top style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;mso-cellspacing:0cm;border:solid #666666 1.0pt; mso-border-alt:solid #666666 .75pt;mso-yfti-tbllook:1184;mso-padding-alt: 0cm 0cm 0cm 0cm'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes;height:15.0pt'> <td width="100%" style='width:100.0%;border:solid white 1.0pt;mso-border-alt: solid white .75pt;padding:0cm 0cm 0cm 15.0pt;height:15.0pt'> <p class=MsoNormal><b><span lang=EN-US style='font-size:11.5pt;font-family: "Tahoma",sans-serif;color:#DFEFFF'>Results on natural images<o:p></o:p></span></b></p> </td> </tr> <tr style='mso-yfti-irow:1;mso-yfti-lastrow:yes'> <td valign=top style='border:none;padding:3.75pt 7.5pt 15.0pt 7.5pt'> <table class=MsoNormalTable border=0 cellspacing=3 cellpadding=0 width=600 style='width:360.0pt;mso-cellspacing:1.5pt;mso-yfti-tbllook:1184'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes'> <td width=200 style='width:120.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US><a href="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree1.jpg"><b style='mso-bidi-font-weight:normal'><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter"/> <v:formulas> <v:f eqn="if lineDrawn pixelLineWidth 0"/> <v:f eqn="sum @0 1 0"/> <v:f eqn="sum 0 0 @1"/> <v:f eqn="prod @2 1 2"/> <v:f eqn="prod @3 21600 pixelWidth"/> <v:f eqn="prod @3 21600 pixelHeight"/> <v:f eqn="sum @0 0 1"/> <v:f eqn="prod @6 1 2"/> <v:f eqn="prod @7 21600 pixelWidth"/> <v:f eqn="sum @8 21600 0"/> <v:f eqn="prod @7 21600 pixelHeight"/> <v:f eqn="sum @10 21600 0"/> </v:formulas> <v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/> <o:lock v:ext="edit" aspectratio="t"/> </v:shapetype><v:shape id="VGr_x0020_1" o:spid="_x0000_i1037" type="#_x0000_t75" 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o:spid="_x0000_i1033" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree5.jpg" href="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree5.jpg" style='width:120pt;height:90pt;visibility:visible;mso-wrap-style:square' o:button="t"> <v:imagedata src="spectralresidual.files/image009.jpg" o:title="Tree5"/> </v:shape><![endif]--><![if !vml]><span style='mso-ignore:vglayout'><img border=0 width=200 height=150 src="spectralresidual.files/image010.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree5.jpg" v:shapes="VGr_x0020_5"></span><![endif]></span></b></a></span></p> </td> <td width=200 style='width:120.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US><a href="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree6.jpg"><b style='mso-bidi-font-weight:normal'><span style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_6" o:spid="_x0000_i1032" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree6.jpg" href="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree6.jpg" style='width:120pt;height:90pt;visibility:visible;mso-wrap-style:square' o:button="t"> <v:imagedata src="spectralresidual.files/image011.jpg" o:title="Tree6"/> </v:shape><![endif]--><![if !vml]><span style='mso-ignore:vglayout'><img border=0 width=200 height=150 src="spectralresidual.files/image012.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/multiobj/Tree6.jpg" v:shapes="VGr_x0020_6"></span><![endif]></span></b></a></span></p> </td> </tr> </table> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>As demonstrated by these examples, the spectral residual successful detects the suspect proto-objects in images.<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>Note the efficiency of this method outperforms other spatial-based methods (about 10x to 20x faster).<o:p></o:p></span></p> </td> </tr> </table> </td> </tr> <tr style='mso-yfti-irow:5'> <td style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <p><span lang=EN-US>&nbsp;</span></p> </td> </tr> <tr style='mso-yfti-irow:6'> <td valign=top style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;mso-cellspacing:0cm;border:solid #666666 1.0pt; mso-border-alt:solid #666666 .75pt;mso-yfti-tbllook:1184;mso-padding-alt: 0cm 0cm 0cm 0cm'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes;height:15.0pt'> <td width="100%" style='width:100.0%;border:solid white 1.0pt;mso-border-alt: solid white .75pt;padding:0cm 0cm 0cm 15.0pt;height:15.0pt'> <p class=MsoNormal><b><span lang=EN-US style='font-size:11.5pt;font-family: "Tahoma",sans-serif;color:#DFEFFF'>Results on psychological patterns<o:p></o:p></span></b></p> </td> </tr> <tr 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width=100 style='width:60.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_8" o:spid="_x0000_i1030" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/density.jpg" style='width:60pt;height:120pt;visibility:visible;mso-wrap-style:square'> <v:imagedata src="spectralresidual.files/image014.jpg" o:title="density"/> </v:shape><![endif]--><![if !vml]><img border=0 width=100 height=200 src="spectralresidual.files/image014.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/density.jpg" v:shapes="VGr_x0020_8"><![endif]></span></p> </td> <td width=100 style='width:60.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_9" o:spid="_x0000_i1029" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/intersection.jpg" style='width:60pt;height:120pt;visibility:visible;mso-wrap-style:square'> <v:imagedata src="spectralresidual.files/image015.jpg" o:title="intersection"/> </v:shape><![endif]--><![if !vml]><img border=0 width=100 height=200 src="spectralresidual.files/image015.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/intersection.jpg" v:shapes="VGr_x0020_9"><![endif]></span></p> </td> <td width=100 style='width:60.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_10" o:spid="_x0000_i1028" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/inv-intersection.jpg" style='width:60pt;height:120pt;visibility:visible;mso-wrap-style:square'> <v:imagedata src="spectralresidual.files/image016.jpg" o:title="inv-intersection"/> </v:shape><![endif]--><![if !vml]><img border=0 width=100 height=200 src="spectralresidual.files/image016.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/inv-intersection.jpg" v:shapes="VGr_x0020_10"><![endif]></span></p> </td> <td width=100 style='width:60.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_11" o:spid="_x0000_i1027" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/orientation.jpg" style='width:60pt;height:120pt;visibility:visible;mso-wrap-style:square'> <v:imagedata src="spectralresidual.files/image017.jpg" o:title="orientation"/> </v:shape><![endif]--><![if !vml]><img border=0 width=100 height=200 src="spectralresidual.files/image017.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/orientation.jpg" v:shapes="VGr_x0020_11"><![endif]></span></p> </td> </tr> <tr style='mso-yfti-irow:1'> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>curve<o:p></o:p></span></p> </td> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>density<o:p></o:p></span></p> </td> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>intersection<o:p></o:p></span></p> </td> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>inv-intersection<o:p></o:p></span></p> </td> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>orientation<o:p></o:p></span></p> </td> </tr> <tr style='mso-yfti-irow:2'> <td colspan=5 style='padding:.75pt .75pt .75pt .75pt'> <p><span lang=EN-US>&nbsp;</span></p> </td> </tr> <tr style='mso-yfti-irow:3'> <td width=100 style='width:60.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_12" o:spid="_x0000_i1026" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/closure.jpg" style='width:60pt;height:120pt;visibility:visible;mso-wrap-style:square'> <v:imagedata src="spectralresidual.files/image018.jpg" o:title="closure"/> </v:shape><![endif]--><![if !vml]><img border=0 width=100 height=200 src="spectralresidual.files/image018.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/closure.jpg" v:shapes="VGr_x0020_12"><![endif]></span></p> </td> <td width=100 style='width:60.0pt;padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US style='mso-no-proof:yes'><!--[if gte vml 1]><v:shape id="VGr_x0020_13" o:spid="_x0000_i1025" type="#_x0000_t75" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/curvature2.jpg" style='width:60pt;height:120pt;visibility:visible;mso-wrap-style:square'> <v:imagedata src="spectralresidual.files/image019.jpg" o:title="curvature2"/> </v:shape><![endif]--><![if !vml]><img border=0 width=100 height=200 src="spectralresidual.files/image019.jpg" alt="http://www.its.caltech.edu/~xhou/projects/spectralResidual/psycho/curvature2.jpg" v:shapes="VGr_x0020_13"><![endif]></span></p> </td> <td colspan=3 style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><span lang=EN-US>&nbsp;</span></p> </td> </tr> <tr style='mso-yfti-irow:4;mso-yfti-lastrow:yes'> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>closure<o:p></o:p></span></p> </td> <td valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p align=center style='text-align:center'><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>inv-curvature<o:p></o:p></span></p> </td> <td colspan=3 valign=top style='padding:3.75pt 7.5pt 15.0pt 7.5pt'></td> </tr> </table> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>Note that the spectral residual fails in detecting odds from the stimuli of the second row. However, it is well-known, certain features, such as closure and inverse-curvature, are too complex for an early visual system. This point has been confirmed by numerous psychological experiments. (J.M.Wolfe's guided search theory for example) <o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>In a word, the failure in closure and inverse-curvature is rather encouraging. They are believed unperceptible by attention of Human Visual System. <o:p></o:p></span></p> </td> </tr> </table> </td> </tr> <tr style='mso-yfti-irow:7'> <td style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <p><span lang=EN-US>&nbsp;</span></p> </td> </tr> <tr style='mso-yfti-irow:8;mso-yfti-lastrow:yes'> <td valign=top style='padding:7.5pt 7.5pt 7.5pt 7.5pt'> <table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;mso-cellspacing:0cm;border:solid #666666 1.0pt; mso-border-alt:solid #666666 .75pt;mso-yfti-tbllook:1184;mso-padding-alt: 0cm 0cm 0cm 0cm'> <tr style='mso-yfti-irow:0;mso-yfti-firstrow:yes;height:15.0pt'> <td width="100%" style='width:100.0%;border:solid white 1.0pt;mso-border-alt: solid white .75pt;padding:0cm 0cm 0cm 15.0pt;height:15.0pt'> <p class=MsoNormal><b><span lang=EN-US style='font-size:11.5pt;font-family: "Tahoma",sans-serif;color:#DFEFFF'>Misc downloads<o:p></o:p></span></b></p> </td> </tr> <tr style='mso-yfti-irow:1;mso-yfti-lastrow:yes'> <td valign=top style='border:none;padding:3.75pt 7.5pt 15.0pt 7.5pt'> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>The original paper of spectral saliency is available here: <a href="http://www.its.caltech.edu/~xhou/papers/cvpr07.pdf"><b>Saliency Detection: A Spectral Residual Approach</b></a> (1.6MB)<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>The poster presentation I used in CVPR 2007 is available here: <a href="http://www.its.caltech.edu/~xhou/papers/cvpr07poster.pdf"><b>CVPR07Poster.pdf</b></a> (1.7MB)<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>&nbsp;<o:p></o:p></span></p> <p><span lang=EN-US style='font-size:9.0pt;font-family:"Tahoma",sans-serif'>Pictures used in the experiments is availalbe here: <a href="http://www.its.caltech.edu/~xhou/papers/cvpr07supp.rar"><b>CVPR07Supp.rar</b></a> (11.1MB)<o:p></o:p></span></p> </td> </tr> </table> </td> </tr> </table> <p><span lang=EN-US>&nbsp;</span></p> </div> </body> </html>