Skip to main content

Table 3 System accuracy - 30° between IR lights and camera

From: A free geometry model-independent neural eye-gaze tracking system

Session 1   Calibration grid    Test grid  
User RMSEx RMSEy RMSEρ RMSEx RMSEy RMSEρ
1 0.308° 0.322° 0.446° 0.333° 0.407° 0.526°
2 0.262° 0.329° 0.421° 0.355° 0.316° 0.475°
3 0.366° 0.424° 0.561° 0.359° 0.480° 0.600°
4 0.317° 0.432° 0.536° 0.355° 0.454° 0.576°
5 0.469° 0.424° 0.632° 0.409° 0.553° 0.687°
6 0.449° 0.395° 0.598° 0.521° 0.468° 0.701°
mean 0.362° 0.388° 0.532° 0.389° 0.446° 0.594°
SD ±0.075° ±0.046° ±0.076° ±0.064° ±0.073° ±0.081°
RSD% ±20.7% ±11.8% ±14.4% ±16.3% ±16.3% ±13.6%
Session 2   Calibration grid    Test grid  
User RMSE x RMSE y RMSE ρ RMSE x RMSE y RMSE ρ
1 0.249° 0.383° 0.457° 0.381° 0.362° 0.526°
2 0.328° 0.357° 0.485° 0.419° 0.369° 0.558°
3 0.383° 0.450° 0.591° 0.361° 0.436° 0.566°
4 0.306° 0.313° 0.438° 0.526° 0.361° 0.638°
5 0.383° 0.450° 0.591° 0.361° 0.436° 0.566°
6 0.462° 0.371° 0.592° 0.517° 0.419° 0.666°
mean 0.352° 0.387° 0.526° 0.427° 0.397° 0.586°
SD ±0.067° ±0.049° ±0.067° ±0.069° ±0.034° ±0.049°
RSD% ±19.2% ±12.7% ±12.8% ±16.2% ±8.4% ±8.3%
mean 0.357° 0.388° 0.529° 0.408° 0.422° 0.590°
SD ±0.071° ±0.048° ±0.072° ±0.069° ±0.062° ±0.067°
RSD% ±20.0% ±12.3% ±13.6% ±17.0% ±14.6% ±11.3%