<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Helo,<div><br></div><div>Please be aware that there is an unfortunate bug in release 3.20 with regard to this filter:</div><div><a href="http://www.itk.org/Bug/view.php?id=11098">http://www.itk.org/Bug/view.php?id=11098</a></div><div><br></div><div>Brad</div><div><br></div><div><br><div><div>On Aug 10, 2010, at 12:46 PM, <a href="mailto:lynx.abraxas@freenet.de">lynx.abraxas@freenet.de</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>On 20/07/10 17:41:32, Sergio Vera wrote:<br><blockquote type="cite">Using the hessian you can look for tubular structures easily. ITK has some<br></blockquote><blockquote type="cite">functions related oriented do enhance vessels (that are similar to your<br></blockquote><blockquote type="cite">fibers).<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">There are also minor modifications of the hessian filter that sould be able<br></blockquote><blockquote type="cite">to respond well to plate-like structures as far as I remember...<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Look for Alejandro Frangi Vesselness measure. His paper explains the<br></blockquote><blockquote type="cite">combination of eigenvalues of the Hessian that respond well to tubes and to<br></blockquote><blockquote type="cite">plates.<br></blockquote><blockquote type="cite"><br></blockquote><br>Thanks a lot Sergio! This seems to be a very promising solution to my problem.<br>I'll try the HessianObjectnessFilter.<br><br>I wonder though if it would be better to apply the filter before binarization<br>(thresholding) of a grey image or on the binarized (thresholded) image?<br><br>Many thanks again.<br>Lynx<br><br>_____________________________________<br>Powered by <a href="http://www.kitware.com">www.kitware.com</a><br><br>Visit other Kitware open-source projects at<br><a href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</a><br><br>Kitware offers ITK Training Courses, for more information visit:<br>http://www.kitware.com/products/protraining.html<br><br>Please keep messages on-topic and check the ITK FAQ at:<br>http://www.itk.org/Wiki/ITK_FAQ<br><br>Follow this link to subscribe/unsubscribe:<br>http://www.itk.org/mailman/listinfo/insight-users<br></div></blockquote></div><br><div>
<span class="Apple-style-span" style="font-size: 12px; "><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica">========================================================</font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica">Bradley Lowekamp<span class="Apple-converted-space"> </span><span class="Apple-converted-space"> </span></font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font class="Apple-style-span" face="Arial"><span class="Apple-style-span" style="font-family: Arial; "><span class="Apple-style-span" style="font-family: Arial; ">Lockheed Martin </span></span></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">Contractor for</font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica">Office of High Performance Computing and Communications</font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica">National Library of Medicine<span class="Apple-converted-space"> </span></font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><a href="mailto:blowekamp@mail.nih.gov">blowekamp@mail.nih.gov</a></font></p><br class="Apple-interchange-newline"></span>
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