Study of Additional Eye-Related Features for Future Eye-Tracking Techniques.

We investigated additional eye-related features that can be tracked by modified Video-Oculography (VOG) and Photosensor Oculography (PSOG) systems in order to improve their data quality. Using a VOG technique in conjunction with the developed method of detection of actively moving eye-related features, we performed an experimental evaluation of movement characteristics of the observed features, such as eyelashes and eyebrows. Our results shown strong correlation between the lower eyelashes and limbus, which was taken as a control measure of eye movements. Our results can be implemented in applications that require high data quality of eye-tracking, such as in Virtual Reality (VR).