External Email - Use Caution Hello, I am working on generating a vertex mapping file that identifies corresponding vertices across different levels of an icosahedral mesh. Specifically, for ico6, I want to determine which vertices contribute to each vertex in ico5 when downsampling is performed. Currently, I approximate this mapping using Euclidean distance: for each vertex in ico5, I find the n closest vertices in ico6 based on their (x, y, z) coordinates, then average across these. However, I’m wondering if there is a more formal or standard approach to defining these vertex correspondences—perhaps one based on the hierarchical structure of icosahedral refinement. Would you have any suggestions for a more principled method to determine vertex equivalence across levels? Thanks, Sam
_______________________________________________ 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 Mass General Brigham Compliance HelpLine at https://www.massgeneralbrigham.org/complianceline <https://www.massgeneralbrigham.org/complianceline> . Please note that this e-mail is not secure (encrypted). If you do not wish to continue communication over unencrypted e-mail, please notify the sender of this message immediately. Continuing to send or respond to e-mail after receiving this message means you understand and accept this risk and wish to continue to communicate over unencrypted e-mail.
