Eye tracking white sclera (limbus tracking). It presents another challenge for vertical eye movements due to obstruction of eyelids. Eye-tracking setups vary greatly: some are head-mounted, some require the head to be stable (for example, with a chin rest), and some function remotely and automatically track the head during motion. Most use a sampling rate of at least 30 Hz. Although 50/60 Hz is more common, today many video-based eye trackers run at 240, 350 or even 1000/1250 Hz, speeds needed in order to capture fixational eye movements or correctly measure saccade dynamics. Eye movements are typically divided into fixations and saccades
The Savage Eye The Savage Eye The Savage Eye is a 1960 "dramatized documentary" film that superposes a dramatic narration of the life of a divorced woman with documentary camera footage of an unspecified 1950s city. The film was written, produced, directed, and edited by Ben Maddow, Sidney Meyers, and Joseph Strick, who did the work over several years on their weekends. "The Savage Eye" is often considered to be part of the cinema vérité movement of the 1950s and 1960s. In a 1960 review, A. H. Weiler characterized the film: Benjamin Jackson has noted that Irving Lerner, Strick's collaborator on the earlier