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Table 2 Error of virtual and real registration based on improved identification method (mm)

From: Optimization of virtual and real registration technology based on augmented reality in a surgical navigation system

GroupPointMark points on the real modelMark points on the virtual modelCoordinate errorError (mm)Average error (mm)p-value
XYZXYZXYZ
AP1− 138.41− 153.00− 1381.74− 139.57− 152.82− 1384.681.160.182.933.163.520.65
P2− 152.42− 72.01− 1377.30− 149.08− 69.94− 1376.993.352.070.313.95
P3− 120.67− 134.73− 1349.59− 123.99− 133.29− 1351.583.321.441.984.13
P4− 175.34− 81.00− 1424.07− 176.85− 80.06− 1424.461.520.402.402.86
BP1− 62.10185.31− 1390.53− 64.94184.02− 1390.242.841.290.293.133.36
P2− 28.07149.31− 1328.60− 30.94148.22− 1328.022.871.090.583.20
P3− 0.91202.92− 1280.62− 1.94201.79− 1277.721.031.132.903.28
P4− 84.33191.37− 1424.81− 80.02189.98− 1424.764.311.390.053.83
CP1− 37.84186.61− 1352.84− 40.17− 184.76− 1352.932.331.850.092.973.530.60
P2− 36.07178.86− 1307.83− 38.87176.72− 1307.932.802.140.103.52
P3− 65.96259.36− 1381.28− 67.42258.92− 1384.731.460.443.453.77
P4− 108.21− 63.52− 1210.20− 110.43− 60.58− 1211.052.222.940.853.84
DP1− 87.14119.06− 1316.18− 84.64121.76− 1317.872.502.701.694.323.73
P2− 77.20112.31− 1270.39− 74.86108.97− 1268.342.343.342.054.28
P3− 39.13139.35− 1250.14− 40.71141.02− 1246.471.581.673.673.13
P4− 72.0989.47− 1294.83− 70.6491.45− 1291.381.451.983.453.21