[Insight-users] Thin plate spine or interpolate

[Tim Hutton]

Learning VTK will take you a while, as it's big and complicated like
ITK. It's well worth the effort though.

My top tip for learning VTK is to learn Tcl, and work through as much
of the VTK test suite as you can. The Tcl test scripts are linked off
each class's page, in a section labelled "Tests:", e.g. here for
vtkThinPlateSpline:
http://www.vtk.org/doc/release/5.0/html/a02101.html


On 15/05/07, Zihua Su <zihuabox at gmail.com> wrote:
> Hi, Tim
>
> Thanks for your kind help. Could i know if i can have an example code for
> how to use VTk or VTK thinplatespline,
> since i have never used it before.
>
> Thanks
>
> Richard
>
>
>
>
> On 5/15/07, Tim Hutton <tim.hutton at gmail.com > wrote:
> > Hi Richard,
> >
> > If your surfaces are represented as polygonal meshes you might find
> > VTK more suited to this than ITK. The problem of finding the nearest
> > point on a surface is easily solved using vtkCellLocator. I have often
> > used vtkThinPlateSplineTransform and vtkCellLocator for making a dense
> > correspondence between 3D scans of human faces, it works well for
> > this.
> >
> > If your surfaces are represented as volume images then it would be
> > best to contour them or otherwise extract the surfaces you want, to
> > make these manipulations easier.
> >
> > Tim
> >
> > On 14/05/07, Zihua Su < zihuabox at gmail.com> wrote:
> > > Dear all
> > >
> > >
> > > I wanna have a correspondence between 2  3D surface. So, I decided to
> use
> > > thin plate spine for tackling this problem.
> > > A set of correspondence points have been found between these two
> surface,
> > > but i need to find more, by thin plate spline interpolation.
> > > I found the thin plate spine is not built for this purpose. Could anyone
> pls
> > > give me some clue?
> > >
> > > For example"
> > >    P1 is source points set, in surface S1, P2 is target points set, in
> > > surface S2.
> > >   After computing the wMatrix,  how can i find a correspondence  between
> > > point A in S1 to B in S2?
> > >
> > >
> > > Cheers
> > > --
> > > Richard
> > > _______________________________________________
> > > Insight-users mailing list
> > > Insight-users at itk.org
> > > http://www.itk.org/mailman/listinfo/insight-users
> > >
> > >
> >
> >
> > --
> > Tim Hutton - http://www.sq3.org.uk
> >
> > Take the Organic Builder challenge -
> > http://www.sq3.org.uk/Evolution/Squirm3/OrganicBuilder/
> >
>
>
>
>


-- 
Tim Hutton - http://www.sq3.org.uk

Take the Organic Builder challenge -
http://www.sq3.org.uk/Evolution/Squirm3/OrganicBuilder/