| 2 | |
| 3 | Pupil is an accessible, affordable and extensible open source platform for ubiquitous eye-tracking and gaze-based interaction. Pupil's advantages are: |
| 4 | |
| 5 | 1. Light-weight eye tracking headset |
| 6 | 2. an open source software framework for mobile eye tracking |
| 7 | 3. A graphical user interface to playback and visualize video and gaze data. |
| 8 | 4. High-resolution scene and eye cameras for monocular and binocular gaze estimation. |
| 9 | 5. Software and GUI are platform-independent and include state-of-the-art algorithms for real-time pupil detection and tracking, calibration, and accurate gaze estimation. |
| 10 | |
| 11 | After doing a performance evaluation it was shown that Pupil can provide an average gaze estimation accuracy of 0.6 degree of visual angle (0.08 degree precision) with a processing pipeline latency of only 0.045 seconds. |