Dear Haim,
this smoothing filter is just a simple iterative procedure, here's the pseudo
code:
for n in iterations
for every line in centerlines:
for every point in line:
prev = previous neighbor point
next = next neighbor point
barycenter = 0.5 * (next + prev)
newpoint = point + relaxation * (barycenter - point)
Hope this helps
Luca
On Jan 10, 2012, at 7:44 AM, Haim Ezer wrote:
> Dear Luca, All
>
> I wonder if you could elaborate on the vmtkcenterlinegeometry.
> I quote from here: http://www.vmtk.org/Tutorials/GeometricAnalysis
> " it is possible to instruct the script to first run the centerline through a
> Laplacian smoothing filter first and then compute the derivatives and the
> related quantities"
> I found reference regarding using the laplacian filter on surfaces, not on a
> line.
> I would like to implement it in MATLAB, and would appreciate any help.
>
> Thank You, and best regards
>
> Haim
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