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. Author manuscript; available in PMC: 2010 Feb 22.
Published in final edited form as: IEEE Trans Robot. 2009;25(5):1109–1124. doi: 10.1109/tro.2009.2027375

TABLE III. Target-Acquisition Data From Fine-Positioning Study: Posterior Pattern.

Target No. Target Distance
(mm)
A→B Error
(mm)
B→C Error
(mm)
C→D Error
(mm)
A→D Error
(mm)
Duration
(s)
1 5.0 1.0 1.9 0.4 1.7 13
2 9.8 0.4 0.8 0.6 2.3 28
3 9.8 1.0 1.0 0.8 0.9 23
4 15.9 0.9 1.6 0.7 0.3 9
5 12.5 0.3 1.5 0.1 1.6 21
6 15.9 0.4 1.1 0.3 1.9 20
7 19.5 1.5 1.0 3.0 3.6 56
8 19.5 0.3 0.3 0.7 1.1 11

Mean ± Std 14 ± 5 0.7 ± 0.4 1.1 ± 0.5 0.8 ± 0.9 1.7 ± 1.0 23 ± 15