sorry, do you mean 1 annot per subject in the training set? I noticed that there is an 'export annotation' option in tksurfer. I figured it would be a matter of drawing my labels on each subject, then, while they're all loaded, clicking the 'export annotation' option and saving the file. However, if I do this and then try to load the annotation again, nothing appears. Am i missing something? Thanks again, Alex
Alex Fornito M.Psych/PhD (clin. neuro.) candidate Melbourne Neuropsychiatry Centre and Department of Psychology The University of Melbourne alexander.fornito@wh.org.au
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From: Bruce Fischl [mailto:fischl@nmr.mgh.harvard.edu] Sent: Sun 11/12/2005 12:34 AM To: Fornito, Alexander Cc: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Custom parcellation atlas
you need 1 annot/training subjects. The canonical surface is the ?h.sphere.reg. The annots can be created by drawing in tksurfer.
cheers, Bruce
On Sat, 10 Dec 2005, Fornito, Alexander wrote:
Hi all, I would like to create my own custom parcellation atlas for the frontal lobes using labels that I have traced on the surfaces. From what I can gather from the mailing list, I need to use mris_ca_train to do this. The usage states indicates I need to specify a canonical surface and an annotation file, but I don't know how to create these. Also, I would have thought I would need to input one annotation file per subject, rather than the single one that is implied in the usage. Do need to do something else before I start using mris_ca_train? Any help is much appreciated. Alex
Alex Fornito M.Psych/PhD (clin. neuro.) candidate Melbourne Neuropsychiatry Centre and Department of Psychology The University of Melbourne alexander.fornito@wh.org.au
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