Thanks, that did the trick.
The only problem is that I would also like to do the same for fsaverage, but
in this case mri_aparc2aseg fails because it is looking for ribbon.mgz (see
below). Is there a work around for this?
Thanks again,
Alex


mri_aparc2aseg --s fsaverage/ --rip-unknown --annot 1000_compact.aparc
--volmask --o fsavg_1000roi_aseg.nii
SUBJECTS_DIR /work/imaging5/af397/twins/freesurfer
subject fsaverage/
outvol fsavg_1000roi_aseg.nii
useribbon 0
baseoffset 0
RipUnknown 1

Reading lh white surface
 /work/imaging5/af397/twins/freesurfer/fsaverage//surf/lh.white
reading group avg surface area 822 cm^2 from file
Reading in average area
/work/imaging5/af397/twins/freesurfer/fsaverage//surf/lh.white.avg.area.mgh

Reading lh pial surface
 /work/imaging5/af397/twins/freesurfer/fsaverage//surf/lh.pial
reading group avg surface area 1041 cm^2 from file
Reading in average area
/work/imaging5/af397/twins/freesurfer/fsaverage//surf/lh.pial.avg.area.mgh

Loading lh annotations from
/work/imaging5/af397/twins/freesurfer/fsaverage//label/lh.1000_compact.aparc
.annot
reading colortable from annotation file...
colortable with 1171 entries read (originally
/autofs/space/birn_044/users/christophe_atlas_rebuild/Simple_surface_labels2
005.txt)

Reading rh white surface
 /work/imaging5/af397/twins/freesurfer/fsaverage//surf/rh.white
reading group avg surface area 822 cm^2 from file
Reading in average area
/work/imaging5/af397/twins/freesurfer/fsaverage//surf/rh.white.avg.area.mgh

Reading rh pial surface
 /work/imaging5/af397/twins/freesurfer/fsaverage//surf/rh.pial
reading group avg surface area 1043 cm^2 from file
Reading in average area
/work/imaging5/af397/twins/freesurfer/fsaverage//surf/rh.pial.avg.area.mgh

Loading rh annotations from
/work/imaging5/af397/twins/freesurfer/fsaverage//label/rh.1000_compact.aparc
.annot
reading colortable from annotation file...
colortable with 1187 entries read (originally
/autofs/space/birn_044/users/christophe_atlas_rebuild/Simple_surface_labels2
005.txt)
Have color table for lh white annotation
Have color table for rh white annotation
Loading ribbon segmentation from
/work/imaging5/af397/twins/freesurfer/fsaverage//mri/ribbon.mgz
ERROR: cannot find 
/work/imaging5/af397/twins/freesurfer/fsaverage//mri/ribbon.mgz
ERROR: loading 
/work/imaging5/af397/twins/freesurfer/fsaverage//mri/ribbon.mgz


On 19/10/2009 17:42, "Douglas N Greve" <gr...@nmr.mgh.harvard.edu> wrote:

> how many labels are in that annot? The way that mri_label2vol works is
> to create a multi-frame volume with the number of frames equal to the
> number of labels in the annotation. It then counts the number of times
> each voxel "sees" a given label. It then assigns that voxel to the most
> frequently occurring label. The problem is that your volume is already
> starting at 256^3, so it does not take many frames to make the memory
> requirements blow up way beyond what even a big computer can do.
> mri_label2vol was really meant for the case where you downsample labels
> which causes a single voxel to have multiple labels. In your case, you
> are probably better off using mri_aparc2aseg, specifying your annotation
> with --annot (see 1002593/scripts/recon-all.log for example
> command-line) . You might want to specify a different annot-table to
> match your labels.
> 
> doug
> 
> Alex Fornito wrote:
>> Hi all,
>> I've tried running mri_label2vol on a few different computers now and keep
>> encountering the same memory error. Can anyone provide suggestions as to how
>> to get around this problem? I've included the output from a run using linux
>> on a dual 3.05 GHz Xeon with 8GB ram below.
>> Thanks for your help,
>> Alex
>> 
>> 
>>  mri_label2vol --annot 1002593/label/fsavg_lh_500_compact.aparc.annot
>> --identity --temp 1002593/mri/orig.mgz --subject 1002593 --hemi lh --o
>> output.nii
>> Number of labels: 0
>> Annot File:      1002593/label/fsavg_lh_500_compact.aparc.annot
>> Template Volume: 1002593/mri/orig.mgz
>> Outut Volume: output.nii
>> Registration File: (null)
>> Fill Threshold: 0
>> Label Vox Vol:  1
>> ProjType:       (null)
>> ProjTypeId:     0
>> ProjStart:      0
>> ProjStop:       0
>> ProjDelta:      0.1
>> Subject:  1002593
>> Hemi:     lh
>> UseNewASeg2Vol:  1
>> DoLabelStatVol  0
>> $Id: mri_label2vol.c,v 1.25.2.3 2009/06/09 16:22:30 greve Exp $
>> Template RAS-to-Vox: --------
>> -1.000   0.000   0.000   128.000;
>> -0.000  -0.000  -1.000   128.000;
>> -0.000   1.000  -0.000   128.000;
>>  0.000   0.000   0.000   1.000;
>> Template Voxel Volume: 1
>> nHits Thresh: 0
>> Using Identity Matrix
>> RegMat: --------
>>  1.000   0.000   0.000   0.000;
>>  0.000   1.000   0.000   0.000;
>>  0.000   0.000   1.000   0.000;
>>  0.000   0.000   0.000   1.000;
>> Label RAS-to-Vox: --------
>> -1.000   0.000   0.000   128.000;
>>  0.000   0.000  -1.000   128.000;
>>  0.000   1.000   0.000   128.000;
>>  0.000   0.000   0.000   1.000;
>>   INFO: loading surface
>> /work/imaging5/af397/twins/freesurfer/1002593/surf/lh.white
>> nvertices = 143248
>> Reading thickness
>> /work/imaging5/af397/twins/freesurfer/1002593/surf/lh.thickness
>> Loading annotations from 1002593/label/fsavg_lh_500_compact.aparc.annot
>> reading colortable from annotation file...
>> colortable with 596 entries read (originally
>> /autofs/space/birn_044/users/christophe_atlas_rebuild/Simple_surface_labels2
>> 005.txt)
>> annotidmax = 595
>> Allocating Hit Volume (1392508928) voxels
>> MRIalloc(256, 256, 256): could not allocate 131072 bytes for 22406th slice
>> 
>> Cannot allocate memory
>> 
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Freesurfer mailing list
>> Freesurfer@nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
>> 
>> 
>>   

-- 

Alex Fornito
CJ Martin Post-Doctoral Fellow
Brain Mapping Unit
Department of Psychiatry
University of Cambridge
Downing Site
Downing St, Cambridge
UK CB2 3EB

Email:    af...@cam.ac.uk
Phone:    +44 (0) 1223 764670
Fax:        +44 (0) 1223 336581

Australian Details:

Melbourne Neuropsychiatry Centre
National Neuroscience Facility
Levels 1 & 2, Alan Gilbert Building
161 Barry St 
Carlton South 3053
Victoria, Australia

Email:    forni...@unimelb.edu.au
Phone:    +61 3 8344 1861
Fax:        +61 3 9348 0469


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