<br> Hi Ivan<br> I've read section <span style="font-weight: bold; font-style: italic;">9.5.1 Hough Transform</span> <span style="font-weight: bold;"></span>from the<span style="text-decoration: underline;"> ItkSoftwareGuide.pdf</span>, and i tried the example <span style="font-weight: bold; font-style: italic;"> Examples/Segmentation/HoughTransform2DLinesImageFilter.cxx, <br> <span style="font-style: italic;"><span style="font-weight: bold;"></span></span></span><span style="font-weight: bold;"><span style="font-weight: bold;"></span></span>but i didn't Get significant results (i get lines allong diagonals and not the vessels).<br> Many people speak about Hessian Matrice in the vessels blood segmentation, but i didn't know something about it before, and i didn't now how to use it in my case, and especially from where to start?<br> I didn't want to extract or to measure blood vessels, but to segment image containing blood vessels so that to make them clear and brights and
hide other structure.<br> a gray level segmentation don't give satisfaisant results.<br> thx for your time and help,<br> Regards,<span style="font-weight: bold; font-style: italic;"><span style="font-style: italic;"><span style="font-weight: bold;"></span></span><br> </span><br><b><i>Iván Macía <imacia@vicomtech.es></i></b> a écrit :<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta content="MSHTML 6.00.2800.1528" name="GENERATOR"> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2">Hi Charfeddine,</font></span></div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2"></font></span> </div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial"
size="2">itk::Hessian3DToVesselnessMeasureImageFilter is the implementation of the work you mention. It takes as input a tensor image with the hessian matrix calculated at every point.</font></span></div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2"><a href="http://www.itk.org/Doxygen/html/classitk_1_1Hessian3DToVesselnessMeasureImageFilter.html">http://www.itk.org/Doxygen/html/classitk_1_1Hessian3DToVesselnessMeasureImageFilter.html</a></font></span></div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2"></font></span> </div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2">Also have a look at the VesselnessMeasureImageFilter example or the Curves3DExtractor application.</font></span></div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial"
size="2"></font></span> </div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2">Regards</font></span></div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2"></font></span> </div> <div align="left" dir="ltr"><span class="750394108-09032006"><font color="#0000ff" face="Arial" size="2">Iván</font></span></div><br> <div class="OutlookMessageHeader" align="left" dir="ltr" lang="es"> <hr tabindex="-1"> <font face="Tahoma" size="2"><b>De:</b> insight-users-bounces+imacia=vicomtech.es@itk.org [mailto:insight-users-bounces+imacia=vicomtech.es@itk.org] <b>En nombre de </b>charfeddine amir<br><b>Enviado el:</b> jueves, 09 de marzo de 2006 8:13<br><b>Para:</b> insight insight<br><b>Asunto:</b> [Insight-users] is there a Filter in ITK to detect Heart veins froma CT image?<br></font><br></div> <div></div>Hi all,<br>How could i filter a CT image of heart to detect vein
from other structure in the image,<br>did any one hear about Sato Filter ( i read about it in a paper) ?<br>thx for help,<br><br> <div> </div><hr size="1"> Nouveau : téléphonez moins cher avec Yahoo! Messenger ! Découvez les tarifs exceptionnels pour appeler la France et l'international. <a href="http://us.rd.yahoo.com/messenger/mail_taglines/default/*http://fr.beta.messenger.yahoo.com">Téléchargez</a> la version beta.<br> <div><font size="2">--<br>No virus found in this incoming message.<br>Checked by AVG Free Edition.<br>Version: 7.1.375 / Virus Database: 268.2.0/276 - Release Date: 07/03/2006<br></font></div> <div><font face="Arial" size="2"></font></div><br> <div><font size="2">--<br> No virus found in this outgoing message.<br> Checked by AVG Free Edition.<br> Version: 7.1.375 / Virus Database: 268.2.1/277 - Release Date: 08/03/2006<br> </font> </div> </blockquote><br><p>
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