[vtkusers] Interpolation and Rotation of 3d dataset

David Gobbi david.gobbi at gmail.com
Wed Nov 17 18:08:08 EST 2010


Hi Kevin,

You can resample and rotate a volume fairly easily in VTK with
vtkImageReslice.  You would have to keep your optimization code
because the only general-purpose optimizer that VTK has is a
Nelder-Mead simplex (vtkAmoebaMinimizer).  The big question is
how you would extract whatever parameter/statistics from the images
that you need for the optimization -- VTK's image classes are focussed
more on visualization than on analysis.

  David

On Wed, Nov 17, 2010 at 3:54 PM, Kevin Neff <kevin.l.neff at gmail.com> wrote:
>
> I am evaluating ways to perform a non-interactive interpolation and rotation
> of a 3-d dataset.  Is VTK an appropriate choice for this task?
>
> I have non-isotropic 3-dimensional data from a confocal microscope.  I will
> have to interpolate to define cubic voxels.  Then, I need to rotate the
> volume many times.  The rotations will be directed by a global minimization
> routine.
>
> I have coded some of this, but it's buggy and I need to figure out if it's
> worth finishing or using another solution, such as VTK.
>
> KLN
>
>
> ----------
> Kevin Neff, Ph.D.
> Mayo Clinic College of Medicine
> Rochester, MN



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