<div dir="ltr"><div><div><div><div><div>Hello all,<br><br></div>I use the ITK examples ImageRegistration5, ImageRegistration8 and DeformableRegistration2 (Demon's) for registration of normal and deformed data (same subject). Briefly, I do some pre-registration of my data using ImageReg5 and ImageReg8 (for gross alignment), after which I take the produced displacement fields, and use them as the 'initial displacement field' for DefReg2.<br>
<br></div>In all cases, I am using my 'pre-deformation' data as my fixed source, and my 'deformation' data as my moving source.<br><br></div>I have some fiducial markers to check the accuracy of the generated displacement field, and it looks pretty good. However, when trying to produce figures, my registration output looks much closer to my 'deformation' data, and sometimes the output and the actual 'deformation' data are offset by a magnitude.<br>
<br></div>In my situation, should I be aiming to have my registration output appear similar to my 'pre-deformation' data? (I get confused reading the ITK explanation on that) Shouldn't I be able to produce the a 'deformation' look-a-like by using WarpImageFilter with my 'pre-deformation' data and my generated displacement field?<br>
<br></div>Sorry this was so wordy. Any help would be much appreciated.<br clear="all"><div><div><div><div><div><div><div><div><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>Canada<br>V5Z 1M9<br><br>Ph: (604) 675-8845<br>Fax: (604) 675-8820<br>Web: <a href="http://oibg.mech.ubc.ca" target="_blank">oibg.mech.ubc.ca</a><br>
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