Hi Taruna,<br><br>Thanks for the clarification.<br><br>You may want to consider a pre-processing stage<br>for correcting field inhomogeneity. Such correction<br>will make a lot easier to run LevelSets or RegionGrowing<br>
algorithms.<br><br><br> Regards,<br><br> Luis<br><br><br>-------------------------------------------<br><div class="gmail_quote">On Fri, Jul 24, 2009 at 7:39 AM, Taru S <span dir="ltr"><<a href="mailto:swork24@gmail.com">swork24@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>Hello Luis,</div>
<div> </div>
<div>I haven't been correcting my images for field inhomogenity before running the segmentations. </div>
<div> </div>
<div>I do need to extract all the anatomical structures inside the knee including the soft tissue, skin, bones etc so can't go with the CT volumes.</div>
<div> </div>
<div>Thanks,</div>
<div>Taruna</div><div><div></div><div class="h5">
<div><br><br> </div>
<div class="gmail_quote">On Thu, Jul 23, 2009 at 10:11 PM, Luis Ibanez <span dir="ltr"><<a href="mailto:luis.ibanez@kitware.com" target="_blank">luis.ibanez@kitware.com</a>></span> wrote:<br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote"><br>Hi Taru,<br><br>Are you correcting your images for field inhomogenity<br>before running the segmentations ?<br>
<br><br> Please let us know,<br><br><br> Luis<br><br><br>-----------------<br>Taru S wrote:<br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote">/Dear ITK developers,
<div>
<div></div>
<div><br>/<br>I am working on the segmentation of the anatomical structures from the knee MR 3D volume. I tried some of the region growing segmentation algorithms (confidence connected, connected threshold, neighborhood connected etc) and got some success with the segmentation of the Tibia bone but the results aren't good for the Femur.<br>
The intensity based thresholds don't work well with the MR so it is hard to define the anatomical boundaries.<br> I tried ITK-SNAP for the same. The Region Competition approach works well for Tibia but not for others because of the intensity issue. The Edge Feature approach results in leaks ( I tried different advection and curvature velocities wrt propagation vel ).<br>
I will really appreciate your advise on the approach I should follow for this segmentation.<br> Thank You,<br>Taru<br> <br><br></div></div>------------------------------------------------------------------------
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