Table 2 Comparison of the two algorithms for automatic measurement of the black and white checkerboard pattern. RMSE and bias (and their relative values) are calculated on 1129 manually measured images including the checkerboard; the number of fails are calculated on the 33,389 images including the checkerboard
Program | Pixel width (mm) | Number of pixels/cm | Total number of fails | ||
|---|---|---|---|---|---|
RMSE | Bias | RMSE | Bias | ||
detec_mire | 0.0088 | 0.0026 | 0.6442 | − 0.4380 | 2 |
(3.5%) | (1.0%) | (1.5%) | (− 1.0%) | ||
pixel_grid | 0.0044 | 0.0008 | 0.4741 | − 0.1201 | 2 |
(1.7%) | (0.3%) | (1.1%) | (− 0.3%) | ||