Hi Somi,<br><br>If you use the ScalarChanAndVese filters in the Review folder, then you can have your level set function defined on a small rectangular subregion. This will definitely save you memory and it is faster. The above optimization is not available for the standard level set methods.<br>
<br>Also, you cannot do it for a non-rectangular region.<br><br>Kishore<br><br><br><div class="gmail_quote">On Tue, Apr 13, 2010 at 8:31 PM, somi <span dir="ltr"><<a href="mailto:seesomi@gmail.com">seesomi@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;">Hi,<br><br>a) Is is possible to restrict the growth of level set filter to a user defined volume ?<br>
For example, in the attached CT image, if a seed point is put at the blue cross point, and we want to grow a region only in the cylindrical reddish region specified by the user,<br>
can we restrict the region growing only to that region ? I want to minimize calculations and memory utilization<br><br><br>b) Can we apply an ITK filter only to specific non-rectangular region ( like the conical region in the attached image ) ?<br>
<br><br>Thanks,<br><font color="#888888">Somi<br> <br><br>
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