Table 1.
Calibration Performance for Different Image Resolutions, in Terms of Horizontal (fc1) and Vertical (fc2) Focal Length Error, Measured in Pixels
| Resolution | fc1 Error | fc2 Error |
|---|---|---|
| 2,048 × 1,536 | 152.57658 | 148.04606 |
| 1,024 × 768 | 51.81176 | 51.25215 |
| 640 × 480 | 37.49968 | 36.96163 |