<div>Hi Karthik,</div>
<div>&nbsp;</div>
<div>thanks for the help.</div>
<div>&nbsp;</div>
<div>Yeah, I did a multiresolution registration by subsampling the images.</div>
<div>The result is: my program runs faster than the one using itk multiresolution pyramid.</div>
<div>Much faster!</div>
<div>The subsampling process: subsampling-&gt;smoothing using gaussian filter.</div>
<div>The result is also correct, or I missed up some step ?</div>
<div>&nbsp;</div>
<div>Thank you.</div>
<div>&nbsp;</div>
<div>Dilla<br><br>&nbsp;</div>
<div><span class="gmail_quote">On 1/27/06, <b class="gmail_sendername">Karthik Krishnan</b> &lt;<a href="mailto:Karthik.Krishnan@kitware.com">Karthik.Krishnan@kitware.com</a>&gt; wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">You have to subsample (use the ResampleImageFilter) and create the<br>multiresolution pyramid yourself to do that.
<br><br>That is: instead of using MultiResolutionRegsitrationMethod use the<br>ImageRegistrationMethod class and register each resolution level (where<br>you create the subsampled images yourself) and set your own transforms
<br>at each initial level.<br><br>Just make sure that you get your spacing etc right.. (ie images at 1/2<br>resolution will have twice the spacing etc)<br><br>-karthik<br><br>DiLLa HaNdiNi wrote:<br><br>&gt; Hi All,<br>&gt;
<br>&gt; How to do changing of transform method in the midle of multiresolution<br>&gt; registration process ?<br>&gt; Does anybody has sample code for it ?<br>&gt; Or, where can I find it ?<br>&gt;<br>&gt; Thank you in advance for the help.
<br>&gt;<br>&gt; Best Regards.<br>&gt;<br>&gt; Dilla.<br>&gt;<br>&gt;------------------------------------------------------------------------<br>&gt;<br>&gt;_______________________________________________<br>&gt;Insight-users mailing list
<br>&gt;<a href="mailto:Insight-users@itk.org">Insight-users@itk.org</a><br>&gt;<a href="http://www.itk.org/mailman/listinfo/insight-users">http://www.itk.org/mailman/listinfo/insight-users</a><br>&gt;<br>&gt;<br></blockquote>
</div><br>