Hi,
I'm a summer student using FSL for some data analysis and I'm wondering how
I could get out the rotational component of the transformation matrix which
is generated during registration?
I'm going to transform the DTI-data to standard space and for analysis I
have to rotate bvecs accordingly. For this, I need the rotational component.
From the Flirt article "Optimisation in Robust linear Registration of brain
Images" by Jenkinson and Smith (p. 14), I know that the final matrix is
generated from thee different matrixes by multiplication. My first idea was
to access the flirt code and make it print out the parameters I need to
transform the matrix back to "pure rotational". However, I was unable to
open the code. I'm I even supposed to be able to access the code and how
could this be done?
All help will be greatly appreciated!
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