Dear Freesurfer:
I have some problems with using mri_surf2vol .I'd like to ask if you
could help me with this.--volreg Contains the matrix that maps XYZ in the
reference anatomical to XYZ in the functional volume. And to get this reg I
use bbregister. But the result of bbregister is functional to anatomial
volume,so I need to inverse the matrix.When I use convert_xfm in fsl I
found the register.dat(which is the reslut of bbregister)is not a 4*4
matrix ,it just like
dsub1
1.000000
1.000000
0.150000
9.999998807907104e-01 3.475215926300734e-04 3.422866575419903e-04
1.634627580642700e-02
-3.475832345429808e-04 9.999999403953552e-01 1.798802986741066e-04
-4.015868902206421e-02
-3.422244917601347e-04 -1.799785532057285e-04 1.000000000000000e+00
-2.181045338511467e-02
0 0 0 1
round
Is there a command I can use to inverse the register.dat?Or if I use
convert_xfm which part of the register.dat should I use?
Thank you !
Yours
Dongbo Liu
2014-05-06 10:22 GMT+08:00 刘东博 <lldbue...@gmail.com>:
> Dear Freesurfer:
> I have some problems with using mri_surf2vol .I'd like to ask if you
> could help me with this.--volreg Contains the matrix that maps XYZ in the
> reference anatomical to XYZ in the functional volume. And to get this reg
> I use bbregister. But the result of bbregister is functional to anatomial
> volume,so I need to inverse the matrix.When I use convert_xfm in fsl I
> found the register.dat(which is the reslut of bbregister)is not a 4*4
> matrix ,it just like
> dsub1
> 1.000000
> 1.000000
> 0.150000
> 9.999998807907104e-01 3.475215926300734e-04 3.422866575419903e-04
> 1.634627580642700e-02
> -3.475832345429808e-04 9.999999403953552e-01 1.798802986741066e-04
> -4.015868902206421e-02
> -3.422244917601347e-04 -1.799785532057285e-04 1.000000000000000e+00
> -2.181045338511467e-02
> 0 0 0 1
> round
> Is there a command I can use to inverse the register.dat?Or if I use
> convert_xfm which part of the register.dat should I use?
> Thank you !
>
> Yours
> Dongbo Liu
>
>
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