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Table 2 Euler angles of the in-vivo measured head positions

From: Characterization of the head-to-trunk orientation with handheld optical 3D apparatus based on the fringe projection technique

Position HHC
mean ± std [°]
Rotation left φ −3.46 ± 1.75
θ −33.57 ± 2.64
  ψ 8.76 ± 2.61
right φ −4.02 ± 1.67
θ 32.26 ± 2.77
   ψ −2.97 ± 2.93
  1. The number of repeated measurements is 13.