Hello, Beatriz, Martin, and others. My name is Ikhsan and I would like to ask a few things regarding SPHARM-PDM.
Firstly, I have looked at the tutorial and worked on the hippocampus example dataset. It functions properly on my laptop and I got the same output with those mentioned in the tutorial, except for the *SPHARM_procalign.vtk file which appears to be missing. My questions are:
How do I get the *SPHARM_procalign.vtk file? I have exactly followed the tutorial (using the hippocampus dataset provided) and tried to use my dataset as well but it doesn’t shows up.
Can I use the mean shape that I got from the ShapeVariationAnalyzer as a template for Rigid Procrustes alignment? Or do you have any recommendation which file should I use for the registration template?
How do I get the *SPHARM_procalign.vtk file? I have exactly followed the tutorial (using the hippocampus dataset provided) and tried to use my dataset as well but it doesn’t shows up.
You will need a previously computed spharm model and to use it as registration template
Can I use the mean shape that I got from the ShapeVariationAnalyzer as a template for Rigid Procrustes alignment? Or do you have any recommendation which file should I use for the registration template?
That is definitely an option, but it does not need to be.
Thank you for the answer, I have now successfully generated the *procalign.vtk file.
If I may ask once again, I have read in some articles that mentioned about the scaling normalization for the head size (intracranial volume) after the rigid-body Procrustes alignment. Can I perform this step on the SPHARM-PDM module, or should I use another module on the SlicerSALT?
I am currently exploring other modules as well, but so far I couldn’t find it on the SPHARM-PDM tutorial.
Thank you once again for your response, I really appreciate it.
Great to hear that you were able to get your procrustes aligned models!
Currently we still do not have a SlicerSALT module to do procrustes alignment (with and without scaling). There is however, a C++ CLI in SPHARM-PDM that does this, it is called MeshMath..
We will definitely look into incorporating this functionality in SlicerSALT soon.
Thank you!
