Specifications
| Characteristic | faceLAB 5 |
|---|---|
| Head data | Head position Head rotation |
| Eye data (for each eye) | Eye position Eye rotation Eye gaze position against screen Eye gaze position against world model Pupil diameter Eye vergence distance Saccade events |
| Eyelid data (for each eyelid) | Blink events Blink frequency Blink duration Eyelid aperture PERCLOS fatigue metric |
| Facial feature data | Eyelid behavior Lip behavior |
| Timing data | Experiment frame number |
| Head Rotations | Tracking and recovery up to +/- 90° around the y-axis Tracking and recovery up to +/- 45° around x-axis |
| Gaze Rotations | Eye rotations of up to +/- 45° around the y-axis Eye rotations of up to +/- 22° around the x-axis |
| Head Box | Horizontal tracking range up to 0.35m (13.8”) Vertical range up to 0.23m (9”) Distance range up to 0.6m (23.6”) |
| Tracking Accuracy | Typical static accuracy of head measurement within +/- 1mm of translational error and +/- 1° of rotational error Typical static accuracy of gaze direction measurement 0.5-1° rotational error |