We investigate the gaze estimation error induced by pupil size changes using simulated data. We investigate the influence of pupil diameter changes on estimated gaze point error obtained by two gaze estimation models. Simulation data show that at wider viewing angles and at small eye-camera distances, error increases with increasing pupil sizes. The maximum error recorded for refracted pupil images is 2.4° of visual angle and 1.5° for non-refracted pupil projections.
|Title of host publication||ETRA '16 Proceedings of the Ninth Biennial ACM Symposium on Eye Tracking Research & Applications|
|Number of pages||4|
|Publisher||Association for Computing Machinery|
|Publication date||14 Mar 2016|
|Publication status||Published - 14 Mar 2016|
- image processing, eye tracking, gaze estimation, pupildynamics, human computer interaction