Hello Everybody,
I am trying to understand the C code of the DARTEL function in order to accelerate its implementation.
According to the documentation found in spm_diffeo.m, the param variable in the function spm_diffeo('dartel',v,g,f,param) has - 9 parameters (settings). The 8th parameter (k) is used to define the generation of the deformations. A value of zero indicates a small deformation model.
I have three questions:
(1) Who sets this value? can the user set it ?
(2) Does this implies that DARTEL can perform both small and large deformation --according to the user's choice?
(3) On which basis is the deformation model chosen? which model is best suited in which case?
Thank you,
Yasmeen
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