External Email - Use Caution Dear Thomas,
thanks for your reply and suggestion. I had a look at the tool and its paper on it and I think it could be helpful. If I got it correctly, use case #8 at https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems is referred to as 'the affine method' in the paper, but it is inferior the the non-linear warp method presented in the Wu2017_RegistrationFusion paper. About using the github repo: The MNI152 coords I have are in a text file and they represent locations within the cortex, so I have no volume file that I want to project. But from a quick look at the repo, what I could do is to use the displacement fields (or whatever you want to call them) under bin/final_warps_FS5.3/?h.avgMapping_allSub_RF_ANTs_MNI152_orig_to_fsaverage.mat to look up the surface coords in fsaverage. Is that correct? Thanks, Tim > On February 11, 2019 at 1:45 AM Thomas Yeo <ytho...@csail.mit.edu> wrote: > > > External Email - Use Caution > > Hi Tim, > > Case #8 is transforming between MNI152 and MNI305 spaces. MNI305 is > different from fsaverage: one is a volumetric space and one is a surface > space. > > If you are indeed looking for a transformation between MNI152 volumetric > space and fsaverage surface space, you can consider the following: > https://github.com/ThomasYeoLab/CBIG/tree/master/stable_projects/registration/Wu2017_RegistrationFusion > > Regards, > Thomas > > On Sat, Feb 9, 2019 at 11:11 PM Tim Schäfer <ts...@rcmd.org> wrote: > > > External Email - Use Caution > > > > > Dear list, > > > > > > I have some points of interest (volume coordinates, e.g. '5.9, -27.7, > > 49.7') in MNI152 space. I would like to transform them to fsaverage space. > > > > > > How should I do that? > > > > > > > To answer my own question, this seems to be explained as use case #8 on > > the following website (at the bottom): > > > > https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems > > > > To be precise, the website explains the transformation in the opposite > > direction, so one should use the inverse of the matrix given on the website. > > > > -- > > Tim > > > > _______________________________________________ > > Freesurfer mailing list > > Freesurfer@nmr.mgh.harvard.edu > > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Tim _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
