[vtkusers] curve plane reformat with a vtkThinPlateSplineTransform?

[Bill Lorensen]

You can use vtkProbeFilter to resample the image data onto your curved plane.


On Fri, Jan 28, 2011 at 10:44 AM, Dean Inglis <dean.inglis at camris.ca> wrote:
> Im attempting to reslice a 3D image with a user generated curved plane to
> create
> a panoramic dental x-ray from a CT head scan.
> So far, I have a pipeline that allows the user to draw a contour with
> vtkContourWidget on an x-y slice
> visualized with vtkImageActor.  I set up a vtkParametricSpline to smoothy
> fit N equi-spaced points
> to the contour: call this the target.  There is a straight line composed of
> N equi-spaced points along
> the x axis in the image plane: call this the source.  I then use
> vtkThinPlateSplineTransform
> to transform the source to match the target.  I would like to use this
> transform information to
> somehow vtkImageReslice through the 3D image to get a curvilinear plane
> reformat but I
> have no idea how. One alternative option I can think of is to use
> vtkAppendPolyData and
> generate a curved plane mesh by propogating the spline fit points from top
> to bottom of
> the z-slices and then useing vtkProbeFilter to sample the CT scan, but this
> seems less
> elegant.
>
> Dean
>
>
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