Mean error between the skeleton extracted by ACTSE or the center line of tracked fiber tract by SLT and the ideal tract center line at different noise or PVE levels on simulated curve fiber phantom data.

aThe phantom data was filtered by mean filter with window 3×3×3 in variable times (N = 1, 2, 3) to simulate different PVE levels.bRandom noise with standard deviation (SD = 0.003,0.006,0.009,0.012,0.015) were added to phantom data to simulate different noise levels.