I'm to blame for one usage of the unfortunate phrase "flirt space":
http://brainvis.wustl.edu/help/pals_volume_normalization/
Sorry about that.
Jason: Does your question involve the PALS_B12 atlas?
On 09/22/2006 04:58 PM, Christian Beckmann wrote:
> Hi Jason
>
> not sure what you mean by 'flirt space' but you can invert any flirt
> transformation matrix using the command line tool
> convert_xfm.
>
> As an example, assume that you want to convert a ROI drawn in highres
> space to low-res space:
> (i) flirt -in lowres -ref highres -out lr2hr -omat lowres_2_highres.mat
> (ii) convert_xfm -omat highres_2_lowres.mat -inverse lowres_2_highres.mat
> (iii) flirt -in ROI -res lowres -out roi_in_lowres -applyxfm -init
> highres_2_lowres.mat
>
> If you prefer a GUI then use InvertXFM (or InvertXFM_gui on a mac)
>
> hope this helps
> christian
>
> On 22 Sep 2006, at 22:20, Jason Connolly wrote:
>
>> Dear fsl user list,
>>
>> We wish to take an ROI drawn in FLIRT space and reverse normalization it
>> from FLIRT space back to the original functional volume space. Are
>> there
>> any methods for using FLIRT to do such a reverse normalization?
>>
>> Many thanks,
>>
>> Dr. Jason Connolly
>
> --
> Christian F. Beckmann
> Oxford University Centre for Functional
> Magnetic Resonance Imaging of the Brain,
> John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
> Email: [log in to unmask] - http://www.fmrib.ox.ac.uk/~beckmann/
> Phone: +44(0)1865 222551 Fax: +44(0)1865 222717
>
--
Donna L. Dierker
(Formerly Donna Hanlon; no change in marital status -- see http://home.att.net/~donna.hanlon for details.)
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