[vtkusers] Volume mesh of an object with convexe and concave regions

[syssboxx-vtk at yahoo.fr]

Hi vtk users,
I have to visualize a head from contours of MRI images.I tried Delaunay from a txt file with set of points with coordinates.My object has concave and convexe regions,so for the convexes it gives a good results but for the others it's terrible!! (I jointed the result) Is there a way to apply some other filter after Delaunay for improve the result in the concaves. I tried also MarchingCubes applied on the volume with the contours but results are neither good. 
That's the best choice for this  kind of object to get best result and the same time I want a mesh over the originaly points.
 
Thanks for your suggestions
 
Stanislava




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