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Table 2 System accuracy - 0° 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 0.378° 0.303° 0.485° 0.298° 0.526° 0.605°
2 0.336° 0.299° 0.449° 0.308° 0.414° 0.516°
3 0.361° 0.458° 0.583° 0.359° 0.498° 0.614°
4 0.415° 0.434° 0.601° 0.284° 0.612° 0.675°
5 0.414° 0.392° 0.570° 0.330° 0.466° 0.571°
6 0.444° 0.428° 0.617° 0.487° 0.480° 0.684°
mean 0.391° 0.386° 0.551° 0.344° 0.499° 0.611°
SD ±0.037° ±0.063° ±0.062° ±0.068° ±0.061° ±0.058°
RSD% ±9.4% ±16.3% ±11.2% ±19.8% ±12.2% ±9.5%
Session 2   Calibration grid    Test grid  
User RMSE x RMSE y RMSE ρ RMSE x RMSE y RMSE ρ
1 0.305° 0.512° 0.596° 0.443° 0.516° 0.680°
2 0.387° 0.460° 0.601° 0.421° 0.420° 0.595°
3 0.365° 0.494° 0.615° 0.336° 0.462° 0.571°
4 0.409° 0.351° 0.539° 0.426° 0.436° 0.610°
5 0.425° 0.429° 0.604° 0.482° 0.486° 0.685°
6 0.372° 0.470° 0.600° 0.389° 0.536° 0.662°
mean 0.377° 0.453° 0.592° 0.416° 0.476° 0.634°
SD ±0.038° ±0.053° ±0.025° ±0.046° ±0.041° ±0.044°
RSD% ±10.1% ±11.6% ±4.2% ±10.9% ±8.7% ±6.9%
mean 0.384° 0.419° 0.572° 0.380° 0.488° 0.622°
SD ±0.038° ±0.067° ±0.051° ±0.068° ±0.053° ±0.053°
RSD% ±9.9% ±16.0% ±9.0% ±18.0% ±10.9% ±8.5%