External Email - Use Caution        

Got it :)


filling the unassigned vertices with 'unknown' using tksurfer solved my
problem.


cheers,

Joerg


> Hi Bruce,
> this did not change anything. But I tried the process of mris_ca_train,
> mris_ca_label with lh.oasis.chubs.annot and this worked fine.
>
> A closer look to my source annot file from mris_seg2annot showed that
> the label 'unknown' is missing.
>
> How can I add the unknown to all unlabeled vertices?
>
> cheers,
> Joerg
>
>
>
>> Hi Joerg
>>
>> I'm not positive that I understand, but have you tried giving
>> mris_ca_label the switch:
>>
>> mris_ca_label -l $SUBJECTS_DIR/$subject/label/$hemi.cortex.label ...
>>
>>
>> that should remove non-cortical regions from your output annot
>>
>> cheers
>> Bruce
>>
>> On Tue, 5 Mar 2019, Jörg Stadler wrote:
>>
>>>        External Email - Use Caution
>>> Hi,
>>>
>>> I transfered the SPM Anatomy Toolbox
>>> (http://www.fz-juelich.de/inm/inm-1/DE/Forschung/_docs/SPMAnatomyToolbox/SPMAnatomyToolbox_node.html)
>>>
>>> from Collin space to fsaverage using
>>>
>>> Wu J, Ngo GH, Greve DN, Li J, He T, Fischl B, Eickhoff SB, Yeo BTT.
>>> *Accurate nonlinear mapping between MNI volumetric and FreeSurfer
>>> surface coordinate systems*
>>> <http://people.csail.mit.edu/ythomas/publications/2018VolSurfMapping-HBM.pdf>,
>>>
>>> /Human Brain Mapping/ 39:3793–3808, 2018.
>>>
>>>
>>> mris_seg2annot --seg rh_Anatomy_v22c.nii.gz --ctab-auto Anatomy_v22c --s
>>> fsaverage --hemi rh --o rh.anat_v22c
>>>
>>> mris_seg2annot --seg lh_Anatomy_v22c.nii.gz --ctab-auto Anatomy_v22c --s
>>> fsaverage --hemi lh --o lh.anat_v22c
>>>
>>>
>>> This gave me the annot files for fsaverage (annotation.png) and a
>>> template for the color lookup table.
>>>
>>>
>>> Training of the classifier:
>>>
>>> mris_ca_train -t Anatomy_v22c_LUT.txt lh lh.sphere.reg anat_v22c.annot
>>> fsaverage lh.Anatomy_v22c.gcs
>>>
>>> mris_ca_train -t Anatomy_v22c_LUT.txt rh rh.sphere.reg anat_v22c.annot
>>> fsaverage rh.Anatomy_v22c.gcs
>>>
>>>
>>> Transfer to individual subject fsaverage:
>>>
>>> mris_ca_label fs_average lh sphere.reg lh.Anatomy_v22c.gcs
>>> Anatomy_v22c.annot
>>> mris_ca_label fs_average rh sphere.reg rh.Anatomy_v22c.gcs
>>> Anatomy_v22c.annot
>>>
>>>
>>> Now the miracle occurred and the whole surface got labeled.
>>> (mris_ca_label.png)
>>>
>>> How can a keep unassigned regions unlabeled?
>>>
>>>
>>> Joerg
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>

-- 
Dr. rer. nat. Joerg Stadler
Leibniz Institute for Neurobiology (LIN)
Special Lab Non-Invasive Brain Imaging
Brenneckestr. 6, D - 39118 Magdeburg
Tel.: +49-391-6263-92171     Fax: +49-391-6263-92589
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