Electronic Supplement to
High-Resolution Trench Photomosaics from Image-Based Modeling: Workflow and Error Analysis

by Nadine G. Reitman, Scott E. K. Bennett, Ryan D. Gold, Richard W. Briggs, and Christopher B. DuRoss

Table S1. Error Analysis Data

Model	Number of Control Points	Number of Control Points	Spatial Distribution*	3D Residuals (cm)
				Maximum	Minimum	Mean	Median	Standard Deviation	Root Mean Square Error
A	3	50	Minimum GCPs	3.92	0.15	1.44	1.31	0.77	1.63
B	3	50	Minimum GCPs	8.01	0.79	3.89	3.87	1.64	4.22
C	3	50	Minimum GCPs	7.66	0.28	2.45	2.10	1.49	2.87
D	5	48		9.33	0.21	1.92	1.44	1.70	2.56
E	5	48		5.78	0.29	1.69	1.43	1.15	2.04
F	5	48		7.31	0.09	0.98	0.63	1.21	1.56
G	6	47		5.94	0.17	0.77	0.58	0.87	1.16
H	6	47		8.07	0.08	1.06	0.72	1.24	1.63
I	10	43	GCPs Scattered	6.87	0.11	0.84	0.65	1.04	1.34
J	10	43	GCPs at Edges	7.69	0.10	1.05	0.79	1.19	1.59
K	12	41	GCPs Scattered	6.58	0.06	0.82	0.58	1.06	1.34
L	12	41	GCPs at Edges	6.56	0.07	1.14	0.89	1.10	1.59
M	17	36	Original Model	4.84	0.21	0.92	0.68	0.81	1.22
N	26	27	Random 50% 1	6.27	0.12	0.84	0.50	1.23	1.49
O	27	26	Random 50% 2	2.35	0.06	0.42	0.29	0.45	0.61
P	27	26	50% GCPs	5.52	0.05	0.77	0.50	1.05	1.30
Q	27	26	50% GCPs	5.42	0.09	0.66	0.42	1.01	1.21
R	40	13	75% GCPs	2.28	0.06	0.43	0.24	0.56	0.71
S	53	53	All GCPs	2.61	0.00	0.29	0.14	0.46	0.55

See Figure 5 for spatial distributions of control points.

* GCP, ground control point.

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