Re: [Freesurfer] GCA file

2015-01-12 Thread Bruce Fischl
Hi Sophie what kind of modifications did you make? The 3 volumes are part of the information in the gca, but not all of it (they don't contain the markov information) so there is no way to recreate it from only them. mri_ca_train is the only way to make a gca at the moment, although there is s

[Freesurfer] GCA file

2015-01-12 Thread Sophie Maingault
Dear experts, I extracted the 3 mgz volumes of the GCA file used in the recon-all process (RB_all_2008-03-26.gca). I modified these files and I wanted to recreate the GCA file by reunite the 3 mgz. I tried some mri_convert command but I failed to convert these 3 volumes in 1 GCA file. Is it pos

Re: [Freesurfer] GCA file for non-human recon-all use

2012-08-21 Thread Bruce Fischl
1. These need to be image volumes with every voxel containing an index into FreeSurferColorLUT.txt 2. Use the volumes from 1. 3. Yes. 4. The aseg is used to automated several steps in cortical surface reconning that you will need to do manually if you don't have one (ventricle/thalamus/basal

[Freesurfer] GCA file for non-human recon-all use

2012-08-21 Thread Jeff Thompson
Hello, I have a few questions that I hope can be answered: Q1:How can '.label' files be turned into the necessary '.gca' file needed for the recon-all pipeline. Starting for the first step in auto-recon2.What else other than the '.label' files would be needed to create this '.gca' file? Q2: How

[Freesurfer] gca file format

2007-07-19 Thread lan lin
I got some question about gca file format. What does totaltraining means? GIBBS_NEIGHBORS is more 6 neighboring voxels. What is relationship between them? From 1:6 , which one is left, right etc? thanks ___ Freesurfer mailing list Freesurfer@nmr.mgh.