<pre style="font-family: arial,helvetica,sans-serif;">-------- Original Message --------<br>Subject: question regarding <br>"GeodesicActiveContourShapePriorLevelSetImageFilter"<br>Date: Wed, 23 Apr 2008 15:00:38 -0400<br>
From: Amir M. Tahmasebi <<span style="border-bottom: 1px dashed rgb(0, 102, 204); cursor: pointer;" class="yshortcuts" id="lw_1209073536_0"><a href="mailto:tahmaseb@cs.queensu.ca">tahmaseb@cs.queensu.ca</a></span>><br>
To: <span style="border-bottom: 1px dashed rgb(0, 102, 204); cursor: pointer;" class="yshortcuts" id="lw_1209073536_1"><a href="mailto:insight-users@itk.org">insight-users@itk.org</a></span><br><br><br><br>Hi all,<br><br>
I am using "GeodesicActiveContourShapePriorLevelSetImageFilter" to segment a structure from 3D MR images of the brain. I used <br>"ImagePCAShapeModelEstimator" for generating meanshape model as well as variation modes. I have modified the provided example for 3D. Instead<br>
of "FastMarchingImageFilter", which requires seed points, I provide the distance map of the meanshape as the initial contour (generated using <br>"SignedDanielssonDistanceMapImageFilter").<br><br>My question is regarding the the initial coordinate (x,y,z) for meanshape to start with which are a part of parameters being updated.<br>
No matter what position I select, I get the same final result. I was wondering how can I check if this initial position is actually involved <br>in the process of segmentation.<br><br>Thanks in advance,<br><br>________________________________<br>
Amir M. Tahmasebi<br>Ph.D. Student,<br>Medical Image Analysis Lab.<br>School of Computing,<br>Queen's University,<br>Kingston, Ontario<br>CANADA<br>K7L 3N6<br>________________________________<br>Tel: <span style="border-bottom: 1px dashed rgb(0, 102, 204); cursor: pointer;" class="yshortcuts" id="lw_1209073536_2">(613) 533-2797</span><br>
Web: <a target="_blank" href="http://www.cs.queensu.ca/%7Etahmaseb"><span class="yshortcuts" id="lw_1209073536_3">www.cs.queensu.ca/~tahmaseb</span></a></pre><p style="font-family: arial,helvetica,sans-serif;"> </p>