[Insight-users] Non-planar slicing

[somi]

Goggling  curved plane reformat give links to some VTK implementations.

Also, I realized that if the surface is parametric we can directly compute
the mapping between Cartesian - parametric space,
and sample the image at grid points in parametric space, which should be a
lot faster and efficient than voxelizing and masking.

http://vtk.1045678.n5.nabble.com/curve-plane-reformat-with-a-vtkThinPlateSplineTransform-td3361647.html
http://www.vtk.org/doc/release/4.0/html/classvtkProbeFilter.html
http://vtk.1045678.n5.nabble.com/How-to-do-Curved-MPR-Using-VTKProbeFilter-td5482396.html


http://vtk.org/Wiki/VTK/Examples/Cxx/Visualization/CurvedReformation

Somi
http://500px.com/seesomi



On Fri, Jun 8, 2012 at 6:17 PM, Kent Ogden <ogdenk at upstate.edu> wrote:

> Just for reference, in medical imaging we refer to this as a curved plane
> reformat (CPR, just for confusion with cardiopulmonary resuscitation).
> Somi's suggestion may get you your results, I'm not expert enough in ITK to
> help you there.
>
> Kent
>
>
>
> Sent from my iPad
>
> On Jun 8, 2012, at 5:25 PM, "somi <seesomi at gmail.com>" <seesomi at gmail.com>
> wrote:
>
> Hi,
> I think one way to compute what you want is to :
>
> a) Create a surface of the non-planar�manifold that you desire ( I assume
> its parametric to that should be easy to do)
> b) Voxelize the surface it into an image
> c) Use the image created in step (b) as a mask and perform an AND
> operation with your image
>
> The voxeliztion process might be slow if you create a finely spaced volume.
>
> Thanks,
> Somi
> http://500px.com/seesomi
>
> Message: 4
> Date: Thu, 7 Jun 2012 11:08:43 -0700 (PDT)
> From: sgfallows <sgfallows at ieee.org>
> Subject: [Insight-users] Non-planar slicing
> To:�insight-users at itk.org
> Message-ID: <1339092523198-7580206.post at n2.nabble.com>
> Content-Type: text/plain; charset=us-ascii
>
> I need to extract a 2D image from a 3D data set by what I would call
> non-planar slicing. Imagine a sheet of paper curled into a parabola or
> half-ellipse, in the middle of a 3D volume. I want to extract the points on
> the sheet of paper into a flat 2D image. (If there is a better/standard
> term
> for this, please correct me). The curve would be defined by a poly-line or
> Bezier.
>
> AFAICT, the closest thing in ITK is ResampleImageFilter(), however I'm
> having trouble figuring out what the transform would be. All the examples
> seem to map 3D to 3D. Or is this the wrong approach to begin with?
>
> Can anyone point me at something similar?
>
> --
> View this message in context:�
> http://itk-insight-users.2283740.n2.nabble.com/Non-planar-slicing-tp7580206.html
> Sent from the ITK Insight Users mailing list archive at Nabble.com.
>
>  <Part.002>
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>
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