¥Data smoothing (along the
surface) is done with SurfSmooth
HThe difficulty in
smoothing lies in calculating geodesic distances between node pairs.
HSmoothing can be
performed by solving the diffusion equation on the surface. This can be
achieved in a relatively rapid manner with an iterative algorithm
(M.K. Chung et al. 2003)
¥Demo (close SUMA and afni)
HExecute: source
run_SurfSmooth_data
åThe script will use
3dVol2Surf to map the delay data onto the surfaces (uses slightly
different options from previous example)
åSUMA is then
launched and the script waits for you to setup the recorder ON
åHit enter twice (in
the shell) to launch the smoothing program
åWatch the smoothing
progress with each iteration. You can play the whole sequence at the
end.