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Each method of eye-tracking has advantages and disadvantages, and the choice of an eye-tracking system depends on considerations of cost and application. There are offline methods and online procedures like AttentionTracking. There is a trade-off between cost and sensitivity, with the most sensitive systems costing many tens of thousands of ...
Video-oculography (VOG) is a non-invasive, video-based method of measuring horizontal, vertical and torsional position components of the movements of both eyes (eye tracking) using a head-mounted mask that is equipped with small cameras. VOG is usually employed for medical purposes.
Gaze-contingent techniques are part of the eye movement field of study in psychology. From a system analysis point of view, eye-tracking applications should be distinguished from diagnostic or interactive system. In diagnostic mode, the eye tracker provides data about the observer's visual search and attention processes. In interactive mode ...
Movement-based methods are used for tracing information acquisition. Some specific ones are eye tracking (Eyegaze), mouse tracing (Mouselab), or other active information search methods. [1] [6] These methods avoid participant self report and various other process interruptions. Furthermore, they are less expensive, and have a wider outreach ...
Eye tracking device is a tool created to help measure eye and head movements. The first devices for tracking eye movement took two main forms: those that relied on a mechanical connection between participant and recording instrument, and those in which light or some other form of electromagnetic energy was directed at the participant's eyes and its reflection measured and recorded.
Oculometer is a device that tracks eye movement. [1] [2] The oculometer computes eye movement by tracking corneal reflection relative to the center of the pupil. [3]An oculometer, which can provide continuous measurements in real time, can be a research tool to understand gaze as well as cognitive function.
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