[MINC-users] minctracc - Order of Transformation using -lsq12

[Elizabeth Wicks]

Hi all,

I am wondering the exact order of the components in the /minctracc 
-lsq12/ transformation. That is, in what order are the rotation, 
translation, scaling and shear components done during the registration? 
For example, is the output matrix = 
rotation_matrix*skew_matrix*scale_matrix? And what are the forms of 
these individual matrices, e.g. is rotation_matrix = Rx*Ry*Rz or Rz*Ry*Rx?

In particular, it would be helpful to know how /minctracc/ creates its 
output xfm matrix, given the individual transformation parameters, 
(essentially the breakdown of what /param2xfm/ does).

Thanks in advance!

Elizabeth