[ITK] [ITK-users] Constrain a transform for optimizer (Laurent Chauvin)

[Todd Jensen]

Hello, Laurent,

Have you tried having your cost function return the max value allowed when a trial point falls outside the plane?

Todd Jensen, PhD
Jensen Informatics LLC
http://www.linkedin.com/in/toddjensen
+1 (262) 682-0143
todd at jenseninformatics.com


> From: Laurent Chauvin <lchauvin at bwh.harvard.edu>
> 
> 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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