Gaze-contingent displays: a review.
Gaze-contingent displays (GCDs) attempt to balance the amount of information displayed against the visual information processing capacity of the observer through real-time eye movement sensing. Based on the assumed knowledge of the instantaneous location of the observer's focus of attention, GCD content can be "tuned" through several display processing means. Screen-based displays alter pixel level information generally matching the resolvability of the human retina in an effort to maximize bandwidth. Model-based displays alter geometric-level primitives along similar goals. Attentive user interfaces (AUIs) manage object- level entities (e.g., windows, applications) depending on the assumed attentive state of the observer. Such real-time display manipulation is generally achieved through non-contact, unobtrusive tracking of the observer's eye movements. This paper briefly reviews past and present display techniques as well as emerging graphics and eye tracking technology for GCD development.
Duchowski
Andrew T
AT
Computer Science Department, Clemson University, Clemson, South Carolina 29634-0974, USA. andrewd@clemson.edu
Cournia
Nathan
N
Murphy
Hunter
H
D001288:Attention; D016288:Computer Terminals; D003201:Computers; D005133:Eye Movements / Q000502:physiology; D006801:Humans; D012160:Retina / Q000502:physiology; D012984:Software; D014796:Visual Perception