Hi -
I'm using freesurfer with an ex-vivo MTR of a monkey, at 0.25mm. unfortunately the data doesn't fit into 256^3, and anyway things are much faster, and decent results are to be had by downsampling to 0.5mm.
I did notice this mris_refine_surfaces. That looked great. I can fit 0.32mm into 256^3, so I did that, and called it 0.64mm, and treated it the same way I treated the 0.5mm (nu_correct etc etc) to get my "hires.mgz" for mris_refine_surfaces
then I noticed mris_refine_surfaces wants ?h_hires.label as well.
a) how would I make ?h_hires.label b) does my hires.mgz even have to be 256^3? If not, I could use the actual 250um data to refine the surface, and that would be nice. c) I don't suppose there would be any chance of not only using a hi res volume to refine the surfaces, but also upsampling the surfaces too? There is a reason I might want them upsampled. It would be nice for the ?h.white mesh to sort of approximately have a node for each voxel face. It's to do with more accurately mapping certain data in CARET later on.
I'd settle for just how to make ?h_hires.label and use mris_refine_surfaces though :)
cheers,
Colin