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Dear Bruce， We are studying your paper "Advantages of cortical surface reconstruction using submillimeter 7 T MEMPRAGE". I don't know how the process in Figure 2 is implemented.I use mri_surf2surf to map lh.thickness from high resolution to low resolution, can this statement implement the operation of Figure 2(a)? yours yujunjie
------------------ 原始邮件 ------------------ 发件人: "Bruce Fischl"fischl@nmr.mgh.harvard.edu; 发送时间: 2018年12月1日(星期六) 晚上11:51 收件人: "Freesurfer support list"freesurfer@nmr.mgh.harvard.edu;
主题: Re: [Freesurfer] ?????? ?????? Triangular mesh sampling problem
Hi yujunjie
can you explain what your goal is? I'm not really sure that I understand.
cheers Bruce On Sat, 1 Dec 2018, 1013364183 wrote:
External Email - Use CautionDear 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"fischl@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 CautionDear 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"fischl@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 CautionDear 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
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