How to convert vtk Polydata file to DICOM format?

I have a 3D model which is in vtk polydata format. I want to convert this file to DICOM. Is it possible in MatLab?

Answer 1

[Walter Roberson]

You would have to render the polygons into voxels and write out the rendered voxels.

At the moment I cannot think of any reason why you would want to do this? DICOM is a format for storing Digital Images especially for Medicine, not a generalized dataset format.

[Chathu]

Thank you so much for your quick response. But how to render the polygons into voxel? & How to write out the rendered voxels? Well, the reason is i want to transform my surface of the 3D model to a more realistic model so i started working with 3D slicer. It's input file is DICOM. And i cannot think of any better s/w which could generate the surface better.Any ideas, appreciated.

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/24484-geom3d might help. Possibly https://www.mathworks.com/matlabcentral/fileexchange/49692-gptoolbox. Perhaps https://www.mathworks.com/matlabcentral/fileexchange/27390-mesh-voxelisation

An important work routine is https://www.mathworks.com/matlabcentral/fileexchange/37856-inpolyhedron-are-points-inside-a-triangulated-volume-

Some of the routines in the PDE Toolbox might help; https://www.mathworks.com/help/pde/ug/create-and-view-3-d-geometry.html

[Chathu]

Thank you so much Walter. Really appreciate it. :-)