[ITK-users] Constrain a transform for optimizer

Matt McCormick matt.mccormick at kitware.com
Wed Apr 1 11:49:49 EDT 2015


Hi Laurent,

Only some of the optimizers, such as the LBFGSBOptimizerv4 [1]
currently can be constrained.

HTH,
Matt

[1] http://www.itk.org/Doxygen/html/classitk_1_1LBFGSBOptimizerv4.html



On Tue, Mar 31, 2015 at 10:21 AM, Laurent Chauvin
<lchauvin at bwh.harvard.edu> wrote:
> Hello ITK users,
>
> I'm trying to use a Levenberg-Marquardt optimizer to find a point in a plane
> (based on a cost function).
> For now I create a itk::TranslationTransform< double, 3 > and set it to the
> Levenberg-Marquardt optmizer.
>
> However, I know the point I'm looking for is included in a plane.
>
> I was wondering if there is a way to constrain the transform to only check
> points in the plane (to avoid looking for points out of the plane to speed
> up the optimization process) ?
>
> Thank you very much.
>
> --
> Laurent Chauvin, MS
> Surgical Navigation and Robotics Laboratory, Radiology Department
> Brigham And Women's Hospital, Harvard Medical School
> http://wiki.ncigt.org/index.php/User:Lchauvin
>
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