Hi Zhennan there is an option to mri_ca_label to read in a prior segmentation and iterate the MRF minimization, but unless your labels and conventions are identical to our's it's unlikely to work. You can use mri_ca_train to build the MRF and likelihoods and such if you want.
cheers Bruce On Wed, 30 Jan 2013, Zhennan Yan wrote: > Dear freesurfer experts, > > I have questions about the MRF in Freesurfer: > (1) I have a T1 image and sub-cortical segmentation for it (nifti format). > But the segmentation is not perfect > and I would like to relabel it using the ICM algorithm as shown in fig.8 in > paper: Whole Brain Segmentation: > Automated Labeling of Neuroanatomical Structures in the Human Brain, Fischl > et al., (2002). > How can I do this using Freesurfer? > > (2) If I have several subjects with labels, how can I train the anisotropic > nonstationary MRF prior as equation > (9) in the same paper? Can I use that MRF prior elsewhere in my own program? > > Many thanks! > > Best, > Zhennan > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
