TABLE 3. Mean and Standard Deviation of Centroid Difference in Superior–Inferior and Anterior–Posterior Directions as Well as 2-Dimensional Centroid Difference. The GPU and CPU Implementations Yielded Similar Level of Accuracy.
| Centroid difference, CPU | Centroid difference, GPU | |||||
|---|---|---|---|---|---|---|
| Subject |
 -norm (SD) mm |
S–I (SD) mm | A–P (SD) mm |
 -norm (SD) mm |
S–I (SD) mm | A–P (SD) mm |
| Subject 1 | 1.67 (0.94) | 0.97 (0.64) | 1.19 (0.95) | 1.62 (0.93) | 0.95 (0.63) | 1.17 (0.93) |
| Subject 2 | 1.52 (0.89) | 0.96 (0.78) | 1.00 (0.77) | 1.55 (0.88) | 0.96 (0.79) | 1.04 (0.76) |
| Subject 3 | 1.76 (1.25) | 1.17 (0.84) | 1.20 (1.06) | 1.75 (1.27) | 1.20 (0.89) | 1.16 (1.06) |
| Subject 4 | 1.13 (0.74) | 0.65 (0.53) | 0.82 (0.67) | 1.13 (0.74) | 0.66 (0.53) | 0.82 (0.66) |
| Subject 5 | 2.18 (1.41) | 1.45 (1.05) | 1.49 (1.13) | 2.14 (1.39) | 1.43 (1.02) | 1.46 (1.14) |
| Subject 6 | 1.46 (0.80) | 1.11 (0.80) | 0.72 (0.62) | 1.46 (0.78) | 1.10 (0.78) | 0.72 (0.63) |
| Mean | 1.62 (1.01) | 1.05 (0.77) | 1.07 (0.87) | 1.61 (1.00) | 1.05 (0.77) | 1.06 (0.86) |