Table A1:

Computed average distance errors of the direct linear transformation calibration scenarios (see also Fig. A2).

Scenario	Number of Calibration Markers	Marker Location	Avg. Error (mm) Calibrated	Avg. Error (mm) Non-Calibrated
1	6	Along Border	1.04 mm	1.77 mm
		Center	1.44 mm	3.00 mm
2	14	Along Border	0.46 mm	0.63 mm
		Center	0.41 mm	0.49 mm
3	28	Along Border	0.24 mm	0.25 mm
		Center	0.25 mm	0.30 mm
4	42	All Markers	0.24 mm	N/A
5	22	Boundary Markers	0.26 mm	0.23 mm