You could formulate a transform mathematically. <br><br>For instance you can use an itk::ThinPlateSplineTransform. You would specify a bunch of source and target landmarks to roughly achieve the desired warping. Then explicitly generate a deformation field by iterating over every voxel and computing the transformation. This would the deformation field that you would use for validation.<br>
<br>( I must mention though that it is more customary to validate a registration itself rather than the deformation field )<br><br>--<br>karthik<br><br><div><span class="gmail_quote">On 2/27/08, <b class="gmail_sendername">gabri</b> <<a href="mailto:tartuz@gmail.com">tartuz@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi all,<br> <br> I need to build a Deformation field of known shape to find out the<br> correct behaviour of the non rigid registation process i've been using<br> in my thesis.<br> <br> In other words i need something like , in the rigid case, a tool that<br>
could be used to apply a known rotation to a volume of interest.<br> This could be really usefull to verify the accuracy of the registration<br> tool.<br> <br> Someone have some hints?<br> <br> Best reguards,<br> <br> Gabriele<br>
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