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Table 4 Statistical analysis of experimental results

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

MethodsRange of error (mm)GradeNumber of points
Robot experiments0–2.50A8
2.50–3.50B8
3.50–4.50C0
Improved identification method0–2.50A0
2.50–3.50B8
3.5–4.50C8
Identification method≤ 4.50C0
> 4.50D16