[Insight-users] multi-modality with FEM or with Demons ?

[Schreibmann Eduard]

Hello everybody,

Question 1 :
I want to use FEM to register some CT and MRI images, 
using the  DeformableRegistration1.exe. With the 
demo images, it works great but...

When using some CT and MRI images that came with ITK (
BrainT1Slice and BrainProtonDensitySlice.png ), and
with setting the metric to 3 (MI) in the configuration
file, the application finishes after 2-3 iterations
without doing something visible to the input image.
Basically, the only thing changed in the parameter
file was file names and metric type.

What parameters control this behavior ? 
What settings are appropriate for this job ?

Question 2: Is it true that demons can not be used for
multi-modality registration ?

Question 3: The "viscous fluid landmark" registration
has anything to do with demons or FEM ?

Thank you in advance,

A nice day,
Edi

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