Table 3 Computational time complexity for VNN, PNN, Spline, PT, FMM and KR algorithms
From: Reconstruction of freehand 3D ultrasound based on kernel regression
VNN | PNN | Spline | PT | FMM | KR |
|---|---|---|---|---|---|
O(N · N p ) | O(N · R3) | O(N) |
| O(N m  · log(N m ) · R3) | O(N · R6 · D) |