<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Hi Marie,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">by looking at the documentation of <a href="https://itk.org/Doxygen/html/classitk_1_1LevelSetMotionRegistrationFilter.html">Level-Set Motion Registration Filter</a>, optimizer is not needed. The whole registration is set up as an iterative process, executing motion equations at each iteration. You need to experiment with it to see which number of iterations produces good results for your case.</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Regards,</div><div class="gmail_default" style="font-family:verdana,sans-serif;font-size:small">Dženan</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Dec 4, 2016 at 9:15 AM, CocoM <span dir="ltr"><<a href="mailto:cgo_2113@hotmail.com" target="_blank">cgo_2113@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everyone,<br>
<br>
Being fairly new in ITK, I have kind of a general question about deformable<br>
registration. I'm working with the LevelSetMotionRegistrationFilt<wbr>er/Function<br>
classes and the example DeformableRegistration5, which is using them. I<br>
noticed this example doesn't use any optimizer class. It seems to be the<br>
same for the other PDEDeformable methods. So my question is : why? Is that<br>
because it's non parametric registration? And I guess there isn't any<br>
possibility to use an optimizer class in that kind of problem?<br>
<br>
Thanks a lot in advance,<br>
<br>
Marie<br>
<br>
<br>
<br>
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