Dear Mark (or other FSL experts),
to clarify and expand on this question about in 2009 about the .par
output of mcflirt, can I confirm that
1) rot_x is applied first, followed by rot_y, followed by rot_z,
followed by the displacement (trans_x, trans_y, trans_z)?
2) And that the rot_x is rotation about x axis in the clockwise
direction, etc. as suggested by Satra?
Thanks,
Thomas
Hi,
Not quite - they are the parameters you need to align with
the reference volume (the middle of the timeseries in FSL).
All the best,
Mark
On 9 Feb 2009, at 01:09, Satrajit Ghosh wrote:
> Hi,
>
> Thanks. So am I correct in assuming the following:
>
> rot_x, rot_y, rot_z, trans_x, trans_y, trans_z
>
> rotations in radians and clockwise
> translations in mm
>
> These are scan to scan changes rather than cumulative (like SPM).
>
> Cheers,
>
> Satra
>
>
> On Sun, Feb 8, 2009 at 1:57 PM, Xinian Zuo <[log in to unmask]>
> wrote:
>> the first three columns are rot and last three are trans.
>>
>
Hi,
Is there a specification somewhere for the motion parameter estimates
(par file) of mcflirt? I'm looking for information such as which
fields are rotation, translation, what are the dimensions, is it scan
to scan motion or cumulative, etc.
Thanks,
Satra
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