Dear SPMers,
My problem still persists and i still wasn't able to successfully
transform DARTEL-normalized pictures back to subject space. I would
greatly appreciate any help on that matter.
Best regards
Robert Lech
Am 27.01.2012 22:07, schrieb Robert Lech:
> Thank you very much for your quick answer.
>
> I already thought that SPM should write new files, but i couldn't find
> any. There were none in the current Matlab directory, and there was no
> option in "Create Inverse Warped" to specify an output directory.
>
> Could you give me more information on warping back to original space
> or point me to a source with more information on that topic?
>
> Best regards
> Robert Lech
>
>
> Am 27.01.2012 16:02, schrieb John Ashburner:
>> The original images should remain the same. There should be new
>> images that get warped back to match the individual. Where they
>> appear will depend on what output directory you chose.
>>
>> Note that warping from MNI space to original space is a bit tricky, as
>> it needs more than just the Dartel flow fields. These fields map
>> between individual and population average spaces. An additional
>> affine transform is needed to map between population average and MNI
>> space - which will need more code to be written.
>>
>> Best regards,
>> -John
>>
>> On 27 January 2012 13:38, Robert Lech<[log in to unmask]> wrote:
>>> Dear SPM community,
>>>
>>> I recently tried to transform images from MNI space back to subject
>>> space,
>>> using the "Create Inverse Warped" tool. I put in the appropriate
>>> flowfield
>>> (which can be used for both forward and backward deformations?) and the
>>> images i wanted to transform.
>>>
>>> But after doing this i realized that the images were not changed at
>>> all, and
>>> they still remain in MNI space, although SPM successfully completed the
>>> batch without any error message.
>>>
>>> Is this the wrong tool to transform DARTEL normalized pictures back
>>> or am i
>>> missing something here?
>>>
>>> Best Regards
>>> Robert Lech
>>>
>>> --
>>> Dipl.Psych. Robert Lech
>>> Institute of Cognitive Neuroscience
>>> Department of Neuropsychology
>>> Ruhr-University Bochum
>>> GAFO 05/611
>>> Universitätsstraße 150
>>> 44801 Bochum, Germany
>>>
>>> Phone: +49(0)234-3223175
>>> Email: [log in to unmask]
>
--
Dipl.Psych. Robert Lech
Institute of Cognitive Neuroscience
Department of Neuropsychology
Ruhr-University Bochum
GAFO 05/611
Universitätsstraße 150
44801 Bochum, Germany
Phone: +49(0)234-3223175
Email: [log in to unmask]
|