Table 2 Each of the four images (average faces) were landmarked twice, 2 weeks apart, and the differences in landmark coordinates between the first and second digitisation were used for analysis of the errors of the method.
Ave_D15 | Ave_D24 | Ave_MG15 | Ave_MG24 | Ave_MO15 | Ave_MO24 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
X | Y | Z | X | Y | Z | X | Y | Z | X | Y | Z | X | Y | Z | X | Y | Z | |
Ex (R) | 0.3 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.2 | 0.1 | 0.0 | 0.1 | 0.5 | 0.0 | 0.1 | 0.2 | 0.1 | 0.4 |
En (R) | 0.1 | 0.2 | 0.3 | 0.1 | 0.3 | 0.3 | 0.0 | 0.3 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.2 | 0.2 | 0.1 | 0.1 |
En (L) | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.2 | 0.0 | 0.0 | 0.3 | 0.1 | 0.1 |
Ex (L) | 0.4 | 0.1 | 0.2 | 0.6 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.2 | 0.1 | 0.0 | 0.4 | 0.1 | 0.3 | 0.3 | 0.0 | 0.2 |
N | 0.0 | 0.1 | 0.1 | 0.2 | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 | 0.2 | 0.0 | 0.5 | 0.1 | 0.0 | 0.2 | 0.4 | 0.1 | 0.0 |
Al (R) | 0.1 | 0.1 | 0.3 | 0.0 | 0.1 | 0.2 | 0.0 | 0.1 | 0.4 | 0.0 | 0.1 | 0.2 | 0.0 | 0.1 | 0.2 | 0.1 | 0.0 | 0.4 |
Al (L) | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.0 | 0.2 | 0.2 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.3 | 0.1 | 0.3 | 0.2 |
Prn | 0.1 | 0.1 | 0.2 | 0.1 | 0.0 | 0.4 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.2 | 0.0 | 0.2 | 0.1 | 0.1 | 0.1 |
Sn | 0.0 | 0.2 | 0.3 | 0.1 | 0.0 | 0.1 | 0.3 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 | 0.2 | 0.0 | 0.1 | 0.2 | 0.1 | 0.0 |
Sbal (R) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.2 | 0.2 | 0.1 | 0.0 | 0.0 | 0.2 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 |
Sbal (L) | 0.0 | 0.1 | 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 | 0.2 | 0.3 | 0.1 | 0.2 |
Ch (R) | 0.0 | 0.0 | 0.2 | 0.1 | 0.0 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 |
Ch (L) | 0.4 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.0 | 0.1 | 0.2 | 0.0 | 0.0 | 0.4 | 0.0 | 0.0 |
Cph (R) | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.2 | 0.0 | 0.0 | 0.2 | 0.2 | 0.1 | 0.1 | 0.3 | 0.0 | 0.1 | 0.3 | 0.0 | 0.1 |
Cph (L) | 0.1 | 0.0 | 0.1 | 0.5 | 0.1 | 0.2 | 0.0 | 0.0 | 0.3 | 0.2 | 0.2 | 0.1 | 0.2 | 0.0 | 0.2 | 0.4 | 0.1 | 0.0 |
Ls | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.2 | 0.0 | 0.1 | 0.1 | 0.1 | 0.3 | 0.3 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 |
Li | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.4 | 0.1 | 0.2 | 0.2 |
Gn | 0.0 | 0.1 | 0.1 | 0.0 | 0.3 | 0.4 | 0.1 | 0.0 | 0.0 | 0.0 | 0.6 | 0.3 | 0.1 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 |
Sm | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 | 0.1 | 0.1 | 0.2 | 0.0 | 0.1 | 0.2 | 0.0 | 0.1 | 0.2 | 0.4 | 0.0 | 0.1 |
Pog | 0.0 | 0.0 | 0.2 | 0.1 | 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.2 | 0.1 | 0.0 | 0.1 | 0.3 | 0.0 | 0.1 |
Go (R) | 0.3 | 0.1 | 0.4 | 0.3 | 0.7 | 0.5 | 0.1 | 0.3 | 0.3 | 0.3 | 0.3 | 0.8 | 0.2 | 0.1 | 0.4 | 0.2 | 0.9 | 0.1 |
Go (L) | 0.1 | 0.2 | 0.2 | 0.0 | 0.3 | 0.0 | 0.0 | 0.6 | 0.1 | 0.1 | 0.8 | 0.1 | 0.0 | 0.6 | 0.0 | 0.1 | 0.6 | 0.1 |
Zy (R) | 0.1 | 0.6 | 0.1 | 0.4 | 0.2 | 0.1 | 0.2 | 0.1 | 0.7 | 0.1 | 0.6 | 0.3 | 0.2 | 0.7 | 0.2 | 0.3 | 0.9 | 0.0 |
Zy (L) | 0.0 | 0.1 | 0.3 | 0.2 | 0.8 | 0.1 | 0.1 | 0.5 | 0.2 | 0.1 | 0.5 | 0.5 | 0.0 | 0.1 | 0.4 | 0.1 | 0.9 | 0.3 |
Mean | 0.10 | 0.11 | 0.16 | 0.14 | 0.14 | 0.14 | 0.08 | 0.13 | 0.16 | 0.10 | 0.16 | 0.18 | 0.15 | 0.09 | 0.18 | 0.21 | 0.20 | 0.12 |
SD | 0.13 | 0.12 | 0.11 | 0.16 | 0.21 | 0.14 | 0.08 | 0.16 | 0.15 | 0.10 | 0.23 | 0.19 | 0.13 | 0.18 | 0.12 | 0.13 | 0.30 | 0.12 |
Random error (CC) | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 |
Systematic error (p-values) | 0.389 | 0.397 | 0.074 | 0.143 | 0.300 | 0.372 | 0.477 | 0.848 | 0.237 | 0.888 | 0.830 | 0.287 | 0.929 | 0.129 | 0.560 | 0.193 | 0.578 | 0.932 |
