Table 3.
The result according to the distance between the sensor unit and the chessboard.
| Focal Length | Distance (m) | Rotation (Degree) (Standard Deviation) |
Translation (mm) (Standard Deviation) |
||||
|---|---|---|---|---|---|---|---|
| X | Y | Z | X | Y | Z | ||
| 3.5 mm | 2 | −88.896 (0.569) | 1.131 (1.434) | 177.934 (0.351) | −17.46 (14.43) | −129.92 (5.20) | −107.90 (26.21) |
| 3 | −88.960 (0.746) | 0.337 (2.022) | 178.359 (0.538) | −6.05 (19.77) | −123.94 (8.39) | −89.90 (50.69) | |
| 4 | −89.6116 (1.170) | 0.106 (2.294) | 178.693 (0.788) | −35.89 (56.83) | −125.08 (17.08) | −92.04 (76.45) | |
| 5 | − | − | − | − | − | − | |
| 8.0 mm | 2 | −88.624 (0.485) | −0.236 (0.653) | 177.981 (0.349) | −3.80 (15.65) | −147.55 (3.29) | −83.52 (15.66) |
| 3 | −87.766 (0.570) | 0.249 (0.899) | 177.984 (0.461) | 3.56 (22.07) | −145.37 (5.78) | −123.69 (28.05) | |
| 4 | −88.033 (1.009) | −0.100 (1.744) | 178.533 (0.483) | −36.87 (38.57) | −133.52 (8.18) | −133.52 (66.78) | |
| 5 | −85.222 (4.115) | 3.345 (7.675) | 178.222 (1.214) | −58.58 (93.93) | −114.38 (24.91) | −310.56 (319.27) | |
| Measure difference | 2 | −0.271 | 1.368 | −0.046 | −13.65696 | 17.62756 | 24.37621 |
| 3 | −1.193 | 0.087 | 0.375 | −9.61441 | 21.42924 | −32.97788 | |
| 4 | −1.578 | 0.207 | 0.159 | 0.98018 | 8.43786 | −37.84989 | |
| 5 | − | − | − | − | − | − | |