<div dir="ltr"><div>Dear Emma,</div><div> </div><div> The error you got usually means that the overlap region between the fixed and the moving images is too small</div><div>because the estimated transformation parameters are too far from the optimal. Decreasing the step size of the </div>
<div>optimizer to constrain the length of the transformation parameter updates usually helps. You could run B-spline </div><div>registration only at the first low-resolution level and use that transformation to warp the moving image. Then you</div>
<div>could visualize the moving image with respect to the fixed image using some visualization tools like 3D Slicer or</div><div>Paraview. This could help you understand while you got that error when you move to the next finer level.</div>
<div> </div><div> </div><div>Best regards,</div><div> </div><div>Sureerat</div><div> </div><div> </div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Sep 27, 2013 at 12:31 PM, Emma Saunders <span dir="ltr"><<a href="mailto:emmasaunders123@gmail.com" target="_blank">emmasaunders123@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Users<div><br></div><div>I am performing Affine, followed by multilevel Bspline (as per example DeformableRegistration6)</div>
<div><br></div><div>I however recieve an error itk::ERROR: MeanSquaresImageToImageMetric(0x1df51d0): Too many samples map outside moving image buffer: 0 / 49804 when entering the higher resolution Bspline grif</div>
<div><br></div><div>Any advice?</div><div><br></div><div>Thanks</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Emma</div></font></span></div>
<br>_____________________________________<br>
Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
<br>
Visit other Kitware open-source projects at<br>
<a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
<br>
Kitware offers ITK Training Courses, for more information visit:<br>
<a href="http://www.kitware.com/products/protraining.php" target="_blank">http://www.kitware.com/products/protraining.php</a><br>
<br>
Please keep messages on-topic and check the ITK FAQ at:<br>
<a href="http://www.itk.org/Wiki/ITK_FAQ" target="_blank">http://www.itk.org/Wiki/ITK_FAQ</a><br>
<br>
Follow this link to subscribe/unsubscribe:<br>
<a href="http://www.itk.org/mailman/listinfo/insight-users" target="_blank">http://www.itk.org/mailman/listinfo/insight-users</a><br>
<br></blockquote></div><br></div>