Reliable estimation of membrane curvature for cryo-electron tomography
Fig 7
Accuracy of curvature estimation on a smooth spherical surface.
Panels (A-D) show visualizations of κ2 (voxel-1) estimated by (A) VTK, (B) FreeSurfer (FS), (C) RVV or (D) AVV on a smooth sphere with radius = 10 voxels, using rh = 10 voxels for RVV and AVV. Panels (E-F) show cumulative relative frequency histograms of the principal curvature (κ1 and κ2) errors on a smooth sphere with radius = 10 (E) or 20 voxels (F) using different algorithms: RVV, AVV, SSVV, VTK, Mindboggle (MB) and FS; the values of rh or n (in voxels) used for each algorithm are indicated in the legends.