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Table 1 The technical accuracy analysis of the OTS and the EMTS

From: Technical accuracy of optical and the electromagnetic tracking systems

Error [mm]
  OTS EMTS
Mean Error, EMEAN 0.20 0.30
RMS Error, ϵ 0.27 0.36
95% CI 0.60 0.76
Standard Deviation, σ ±0.10 ±0.13
Error, EMAX 0.99 1.10