On 02/01/2011 07:31 PM, Tristan Chaplin wrote: > Hi, > > I've been reading about the creation of your atlases, and I see that > PALS and the macaque atlases have standard size mesh of 73,730 nodes. > I was wondering, is this the same across species to allow > interspecies registration? i.e. is it still possible to do > interspecies comparisons of other species with different size meshes? Possible, but more difficult. Not to say that achieving vertex correspondence across species is trivial. Interspecies comparisons are really hard. I think David Van Essen is the only one in our lab that is doing them, although Matt Glasser might also be doing some. > > I was also wondering how the standard mesh was was actually made. The > PALS paper refers to the Saad 2004 paper, which I think uses SUMA. > SUMA has a program called MapIcosahedron to create standard meshes. > Is this still how you would recommend making a standard mesh? Tim Coalson (a student who works summers here) also developed a utility that creates meshes of specified resolution.
Making a standard mesh is not something I ever do. You do it with a specific motivation -- typically some other important data is already available on that mesh. And the way you usually get your data on that mesh is to register it to an atlas target already on that mesh. If you are talking about creating, say, a sparser mesh for mice/rats, then you're out of my orbit. > > Thanks, > Tristan > ------------------------------------------------------------------------ > > _______________________________________________ > caret-users mailing list > [email protected] > http://brainvis.wustl.edu/mailman/listinfo/caret-users > _______________________________________________ caret-users mailing list [email protected] http://brainvis.wustl.edu/mailman/listinfo/caret-users
