Thanks for your suggestions, Dr. Warfield.<div><br></div><div>For some reason I had thought that simply the existence of a deformation field would allow the inverse to be calculated utilizing inter/extrapolation, rather than requiring a meaningful Jacobian of the inverse.</div>
<div><br></div><div>I will definitely be taking a look at the source code and perhaps trying an implementation.</div><div><br></div><div>Thanks again,</div><div><br></div><div>Tim<br><br>On Friday, January 3, 2014, Simon Warfield wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 1/3/14 12:00 PM, <a>insight-users-request@itk.org</a> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
1. c++ code for getting the inverse displacement field form<br>
Demon's registration (Tim Bhatnagar)<br>
2. ANN: CMake Course - February 10 in Lyon, France (Julien Jomier)<br>
3. Re: c++ code for getting the inverse displacement field form<br>
Demon's registration (brian avants)<br>
<br>
<br>
------------------------------<u></u>------------------------------<u></u>----------<br>
<br>
Message: 1<br>
Date: Thu, 2 Jan 2014 13:32:08 -0800<br>
From: Tim Bhatnagar <<a>tim.bhatnagar@gmail.com</a>><br>
Subject: [Insight-users] c++ code for getting the inverse displacement<br>
field form Demon's registration<br>
To: insight-users <<a>insight-users@itk.org</a>><br>
Message-ID:<br>
<<a>CALbgTzbj1r7iKF55W4FB1o6aAxUa8seBFC0w1smpTwtVHWehdA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hello all,<br>
<br>
Would anyone have a WORKING c++/source file that successfully<br>
generates/acquires the inverse displacement field from a Demon's non-rigid<br>
registration field?<br>
</blockquote>
<br>
<br>
Dear Tim,<br>
<br>
There are a number of facets to this problem. A good paper discussing the issues from a practical perspective is this one:<br>
<a href="http://www.ncbi.nlm.nih.gov/pubmed/18293565" target="_blank">http://www.ncbi.nlm.nih.gov/<u></u>pubmed/18293565</a><br>
<br>
<br>
An implementation is available here:<br>
<a href="http://www.insight-journal.com/browse/publication/768" target="_blank">http://www.insight-journal.<u></u>com/browse/publication/768</a><br>
<br>
<br>
--<br>
Simon<br>
<br>
<br>
<br>
<br>
-- <br>
Simon K. Warfield, Ph.D.<br>
Professor of Radiology<br>
Harvard Medical School<br>
Director of Radiology Research<br>
Director Computational Radiology Laboratory<br>
Department of Radiology<br>
Boston Children's Hospital<br>
<br>
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</blockquote></div><br><br>-- <br>Tim Bhatnagar<br>PhD Candidate<br>Orthopaedic Injury Biomechanics Group<br>Department of Mechanical Engineering<br>University of British Columbia<br><br>Rm 5000 - 818 West 10th Ave.<br>Vancouver, BC<br>
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