Dear All,
A program that uses afni registers a ct scan ($ct) to T1 MRI ($t1) via 3 steps
1. @Align_Centers -base $t1 -dset $ct : creates matrix ct_shft.1D
2. 3dresample -input ct_shft.nii -prefix ct_res_shft.nii -master $t1 -dxyz 1 1 1 -rmode NN
3. align_epi_anat.py -dset1 $t1 -dset2 ct_res_shft.nii -dset1_strip None -dset2_strip None -dset2to1 -suffix _al -feature_size 1 -overwrite -cost nmi -giant_move -rigid_body > status.txt : creates matrix t1_al_mat.aff12.1D
I would like to create also a T1 copy registered to $ct (reverse transformation of t1 in ct space) using the two matrices generated by forward transform. How to I do this in afni?
Thank you very much and Happy New Year!!
Octavian
