3D eye tracking visual analysis

Our research explores the use of data visualisation to visually analyse complex eye tracking data and have spent the last few years developing open-source eye tracking analysis software along side feedback from those who use eye tracking in their work.

Eye tracking is widely used in various domains. Eye-tracking data consists of a record over time of eye position relative to the scene being viewed. Important features relate to fixations (steady gaze on a particular location for some period of time) and saccades (quick eye movements between locations). Most eye tracking occurs in controlled studies in laboratories that require external sensors to track gaze. However, with the growing development of wearable eye trackers (e.g. Tobii Pro), it is now possible to perform ‘in the wild’ studies (i.e. in the participant’s natural environment) by having participants wear eye tracking glasses. These ‘in the wild’ studies tend to produce large amounts of less controlled data. Current eye-tracking analysis software provide limited solutions for the exploratory analysis and visualisation of such collected data.