<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hello,<div><br></div><div>In case anyone else has a similar problem, I switched to using the <span class="Apple-style-span" style="font-family: Monaco; font-size: 10px; ">IterativeInverseDeformationFieldImageFilter </span>and was able to get it to work just fine for my application.</div><div><br></div><div>Thanks,</div><div>Sara</div><div><br></div><div><br><div><div>On Apr 11, 2011, at 4:34 PM, Sara Rolfe wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hello,<br><br>I'm using landmark warping following the example LandmarkWarping2.cxx to deform an image. I'd now like to find vector field mapping the original image to the warped image which is the inverse of the field produced. I've tried using the itkInverseDeformationFieldImageFilter, but the results are very poor. I am guessing this is because the resolution is too low, but with a subsampling factor of less than about 10, the computational time is very long.<br><br>Is there a better way to solve this problem? Also, in practice, should results from itkInverseDeformationFieldImageFilter resemble the correct output, even with lower resolution? I'm wondering if I could have something else wrong.<br><br>Thanks,<br>Sara<br>_____________________________________<br>Powered by <a href="http://www.kitware.com">www.kitware.com</a><br><br>Visit other Kitware open-source projects at<br><a href="http://www.kitware.com/opensource/opensource.html">http://www.kitware.com/opensource/opensource.html</a><br><br>Kitware offers ITK Training Courses, for more information visit:<br>http://www.kitware.com/products/protraining.html<br><br>Please keep messages on-topic and check the ITK FAQ at:<br>http://www.itk.org/Wiki/ITK_FAQ<br><br>Follow this link to subscribe/unsubscribe:<br>http://www.itk.org/mailman/listinfo/insight-users<br></div></blockquote></div><br></div></body></html>