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% |