Re: [Freesurfer] FreeSurfer 6 vertex-wise cortical volume computation details?

2019-08-17 Thread Tim Schäfer
External Email - Use Caution Hi Doug, thanks a lot for the clarification! Tim > On August 16, 2019 at 6:19 PM "Greve, Douglas N.,Ph.D." > wrote: > > > The algorithm in v6 is not as you describe. The function below is based > on Anderson Winkler's (cc'ed) work. > > /*! >  

Re: [Freesurfer] FreeSurfer 6 vertex-wise cortical volume computation details?

2019-08-16 Thread Greve, Douglas N.,Ph.D.
The algorithm in v6 is not as you describe. The function below is based on Anderson Winkler's (cc'ed) work. /*!   \fn MRISvolumeTH3(MRIS *w, MRIS *p, MRI *vol)   \brief Compute vertex-wise volume based on dividing each obliquely truncated   trilateral pyramid into three tetrahedra. Based on A

[Freesurfer] FreeSurfer 6 vertex-wise cortical volume computation details?

2019-08-15 Thread Tim Schäfer
External Email - Use Caution Dear FreeSurfer experts, can anybody refer me to a publication that explains in detail how vertex-wise cortical volume (the data in /surf/?h.volume) is computed in FreeSurfer 6? My understanding is the following: * area is computed as 1/3 the area