Table 3.
Simulation—vessel width: mean values and (standard deviation)
| Method\Vessel diameter | 1 | 2 | 3 mm |
|---|---|---|---|
| Noise – No smoothing |
51.2 (26.0) |
50.2 (24.5) |
48.5 (25.5) |
| Simple smoothing |
61.3 (1.6) |
66.5 (1.7) |
68.6 (1.6) |
| Removed smoothing |
38.8 (1.4) |
33.6 (1.4) |
31.6 (1.3) |
| Masked smoothing | 50.0 (1.8) | 50.1 (2.0) | 50.1 (2.1) |
Masked Smoothing is much closer to the true value of 50 than either of the other smoothing methods. The standard deviation values are markedly better for all smoothing methods than the No Smoothing data. A clear bias is evident for the Simple and Removed Smoothing methods.