Deformation Measurement of a Railroad Bridge Using a Photogrammetric Board without Control Point Survey

Table 5

Positioning error of the check points by the determined IOPs and EOPs (mm).

RMSE	Max	RMSE	Max	RMSE	Max
Case 1	0.82	1.54	0.66	1.08	1.77	1.99
Case 2	0.57	1.10	0.56	1.08	0.85	1.61