hmm, maybe Jon (ccd) can help? Bruce On Sat, 1 Dec 2018, 1013364183 wrote:
External Email - Use Caution Dear Bruce, I use mri_surf2surf to map lh.thickness from high resolution to low resolution, and vice versa, can this statement implement the operation of Figure 2(a)? yours yujunjie ------------------ ???????? ------------------ ??????: "Bruce Fischl"<fis...@nmr.mgh.harvard.edu>; ????????: 2018??11??29??(??????) ????11:46 ??????: "Freesurfer support list"<freesurfer@nmr.mgh.harvard.edu>; ????: Re: [Freesurfer] ?????? Triangular mesh sampling problem Hi yujunjie there is source code in mrishash.c and mrisurf.c for this kind of thing, e.g. MHTfindClosestVertex. We don't have any complete code that will do exactly what you want though, so you will have to poke around in the source yourself I'm afraid. cheers Bruce On Thu, 29 Nov 2018, 1013364183 wrote: > > External Email - Use Caution > > Dear Bruce, > I want to do the following, which source code should we use, and if so, can you send me a > connection? > We now have high and low resolution images, we want to resample each triangular surface mesh > generated from low-resolution data onto the corresponding triangular surface mesh generated from > high-resolution data and vice versa as follows: For every vertex in a low-resolution surface mesh we > found the closest point on the high-resolution surface mesh (which typically fell within a triangle > face of the mesh), and defined a point at that location on the high-resolution surface mesh > (subsequently referred to as ??sparse?? meshes).What should we do to use freesurfer to do the above? > > Thank you in advance > look forward to your reply > yours yujunjie > ------------------ ???????? ------------------ > ??????: "Bruce Fischl"<fis...@nmr.mgh.harvard.edu>; > ????????: 2018??11??7??(??????) ????2:42 > ??????: "Freesurfer support list"<freesurfer@nmr.mgh.harvard.edu>; > ????: Re: [Freesurfer] Triangular mesh sampling problem > > Hi yujunjie > > we have code interenally that will do what you are asking, but no binary, > sorry. You could download our source code and try to write your own, > although it will be a bit of a project. > > cheers > Bruce > On Tue, 6 Nov 2018, 1013364183 > wrote: > > > > > External Email - Use Caution > > > > Dear FS > > We now have high and low resolution images, we want to resample each triangular surface mesh > > generated from low-resolution data onto the corresponding triangular surface mesh generated from > > high-resolution data and vice versa as follows: For every vertex in a low-resolution surface mesh > we > > found the closest point on the high-resolution surface mesh (which typically fell within a > triangle > > face of the mesh), and defined a point at that location on the high-resolution surface mesh > > (subsequently referred to as ??sparse?? meshes).What should we do to use freesurfer to do the > above? > > > > Thanks in advance > > > > yours yujunjie > > > > > _______________________________________________ > 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
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