> Thanks for the reply! > > I was under the impression that inflating, flattening and registration > didn't change the number of verteces in the mesh. That way, one can easily > go from a point in the flat mesh to the corresponding point in the > original space. (ie, if a vertex on the flatmap is vertex number 12,329, > than one need only get the coordinates of the 12,329th vertex of the > corresponding cortical mesh.)
Correct -- changing the geometry doesn't change the mesh. > I couldn't find a tutorial that shows how to do the surface-based > registration to an atlas such that it changes the number of vertices (for > example to '74k'). Look for the word "Registration" in the title, e.g.: http://brainvis.wustl.edu/wiki_linked_files/documentation/Caret_5.5_Tutorial_Segment.pdf But as I said earlier, if you use the pipeline, there is a command line step near the end of the postborder.sh script that runs spherical registration. Everything in preborder.sh and postborder.sh is leading up to this final step. > On Apr 9, 2011, at 8:25 PM, David Van Essen wrote: > >> Colin, >> >> Segmentation produces a 'native mesh' whose exact node number cannot be >> prespecified in Caret (or in other segmentation algorithms I know >> about). >> >> The 73,730-node mesh ('74k' in our latest lingo) arises from >> surface-based registration to an atlas - either the macaque F99 atlas (a >> 74k_f99 mesh) or the human PALS-B12 atlas (a 74k_pals mesh) - using the >> appropriate tutorial. >> >> David VE >> >> >> On Apr 8, 2011, at 6:48 PM, Colin Davey wrote: >> >>> Hi, >>> >>> How do you create a 73,730 standard-mesh with Caret? I assume you begin >>> by going through segmentation, flattening and registration process from >>> the tutorial of the same name. But then what? >>> >>> Cheers, >>> - C >>> >>> *************************************** >>> Colin Davey >>> Scientist >>> Senior Software Engineer >>> >>> Electrical Geodesics, Inc. >>> 1600 Millrace Dr. St 307 >>> Eugene, OR 97403 >>> >>> Learn Boogie Woogie Piano >>> http://www.ColinDavey.com/BoogieWoogie >>> *************************************** >>> >>> _______________________________________________ >>> 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 > > _______________________________________________ > 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
