Is it just those few vertices that are appear to be on the sphere? Can 
you send me the terminal output from the mri_label2label with the 
--close operation?


On 05/10/2017 12:16 PM, Hengda He wrote:
> Hi Freesurfer Developers,
>
> I'm trying to map the vertices of caudal middle frontal in one subject 
> into the space of another subject by using mri_label2label. And I used 
> the method mentioned in this
> https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2015-November/042298.html
>
> We are using freesurfer-Linux-centos4_x86_64-stable-pub-v5.1.0, and I 
> noticed the mri_label2label in v5.1 has the bug of getting holes in 
> the mapped 
> labels(http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg42600.html).
>  
> So I am using the 
> /usr/local/freesurfer/freesurfer_dev/bin/mri_label2label.bin from 
> freesurfer-x86_64-unknown-linux-gnu-dev5-20160513.
>
> For example, we have source Labels(aparc-lh-003_5thCol.label), which 
> are all in SurfaceRAS coordinates:
> #!ascii label  , from subject FreeSurfer vox2ras=TkReg
> 8
> 104996  -35.679  16.281  25.156 1
> 104997  -36.480  16.439  25.362 2
> 104998  -37.443  16.702  25.369 3
> 105705  -41.554  16.840  28.930 4
> 105716  -40.445  17.153  28.046 5
> 105720  -39.570  17.200  26.959 6
> 131017  -29.315  12.915  45.422 7
> 131030  -31.304  12.514  46.455 8
>
> By running this:
> /usr/local/freesurfer/freesurfer_dev/bin/mri_label2label.bin 
> --srclabel aparc-lh-003_5thCol.label --srcsubject FreeSurfer 
> --trglabel aparc-lh-003_5thCol_Reg2MNI.label --trgsubject 
> FreeSurferMNI152 --regmethod surface --hemi lh
>
> We got mapped Labels(aparc-lh-003_5thCol_Reg2MNI.label), which are all 
> in SurfaceRAS coordinates:
> 119096  -39.670  37.222  12.833 3.0000000000
> 117433  -44.642  35.253  14.575 4.0000000000
> 118250  -43.206  35.844  14.273 5.0000000000
> 119091  -42.114  36.692  14.044 6.0000000000
> 120517  -26.436  38.614  21.780 7.0000000000
> 121236  -25.959  39.757  24.739 8.0000000000
> 1321  -22.346  -82.436  -9.530 0.0000000000
> 121253  -26.213  39.504  23.711 8.0000000000
>
> But the mapped labels I got from the mri_label2label in v5.1 and that 
> from using mri_label2label.bin in dev are quite similar to each other 
> when applying the method to around 3500 labels.
>
> So I am wondering if the bug of getting holes was fixed by providing 
> morphological operations in the updated mri_label2label like close 
> operation. If it is true, I am confused about the mapped labels from 
> mri_label2label with close operation.
>
> For example, with the same source labels above, I ran
>
> /usr/local/freesurfer/freesurfer_dev/bin/mri_label2label.bin 
> --srclabel aparc-lh-003_5thCol.label --srcsubject FreeSurfer 
> --trglabel aparc-lh-003_5thCol_Reg2MNI_close2.label --trgsubject 
> FreeSurferMNI152 --regmethod surface --hemi lh --close 2
>
> And we got mapped Labels(aparc-lh-003_5thCol_Reg2MNI_close2.label):
> 119096  -39.670  37.222  12.833 3.0000000000
> 117433  -44.642  35.253  14.575 4.0000000000
> 118250  -43.206  35.844  14.273 5.0000000000
> 119091  -42.114  36.692  14.044 6.0000000000
> 120517  -26.436  38.614  21.780 7.0000000000
> 121236  -25.959  39.757  24.739 8.0000000000
> 1321  -22.346  -82.436  -9.530 0.0000000000
> 121253  -26.213  39.504  23.711 8.0000000000
> 1045  -1.690  -91.572  -40.145 0.0000000000
> 118251  -18.413  75.394  63.061 0.0000000000
> 118258  -21.026  75.715  61.847 0.0000000000
> 119092  -19.797  75.786  62.165 0.0000000000
>
> The problem is that four additional labels 1045, 118251, 118258 and 
> 119092 are not actually on the white matter surface but seem to be 
> right on a sphere(ex. label 1045, 1.690^2+91.572^2+40.145^2=100^2). 
> But I checked all other mapped labels like 119096, they are on the WM 
> surface in the SurfaceRAS coordinates.
>
> I am using CentOS release 6.9.
>
> Thanks!
>
> All the Best,
> Hengda
>
>
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> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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www.nmr.mgh.harvard.edu/facility/filedrop/index.html
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