Glossary

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EdgeWrite(also: Edge Write)

A gestural text entry method that uses the physical edges and corners of a square input area to guide character formation. Unlike traditional handwriting recognition that analyzes the full path of a stroke, EdgeWrite recognizes characters based on the sequence of corners hit,…

Electromagnetic Tracking(also: Magnetic Tracking, 6-DOF Tracking)

Electromagnetic tracking is a position and orientation sensing technology that uses electromagnetic fields to determine the location and rotation of a sensor in three-dimensional space. Systems like the Polhemus tracker generate a low-frequency magnetic field from a stationary…

Electromyography(also: EMG, Electromyogram)

Electromyography (EMG) is a technique for measuring the electrical activity produced by muscles when they contract or are at rest. In accessibility and assistive technology, EMG sensors placed on the skin can detect muscle activations even when there is no visible movement,…

Enhanced Area Touch(also: Area Touch, Expanded Touch Area)

A touchscreen interaction technique that enlarges the effective touch point from a single pixel to a larger circular area, expanding both the motor space (the physical area the user needs to target) and the visual space (the on-screen representation of targets). When multiple…

Eye Cursor(also: Gaze Cursor)

A visual indicator displayed on screen that shows where an eye tracking system has determined the user is currently looking. The eye cursor serves the same function as a mouse cursor but is controlled by eye gaze rather than hand movement. Because eye gaze is inherently less…

Eye Gaze(also: Gaze, Gaze Direction, Visual Gaze)

The direction and focus of a person's eyes during visual attention, used both as a communication signal and as a measurable indicator of cognitive processing. In sign language communication, eye gaze serves critical linguistic functions including marking grammatical…

Eye Gaze Communication(also: Gaze-Based Communication, Eye Tracking Communication)

The use of eye movements and gaze direction as a means of communication, either naturally (making eye contact, looking at objects to indicate interest) or through technology (eye-tracking systems that allow users to select items on a screen by looking at them). For AAC users,…

Eye Gaze Technology(also: Eye Control Technology, Gaze Control)

Technology that tracks and responds to eye movements, enabling users to control electronic devices using only their eyes. Eye gaze technology typically uses infrared cameras to track pupil position and gaze direction, allowing users to move cursors, make selections, type text,…

Eye Tracking(also: Gaze Tracking)

Technology that detects and follows the movement of a user's eyes, enabling gaze-based interaction, attention monitoring, and foveated rendering. In accessibility contexts, eye tracking serves as an alternative input method for users who cannot use traditional controllers,…

Eye-Gaze Control(also: Gaze Control, Eye-Controlled Interface, Gaze-Based Input)

An input method that uses eye-tracking technology to detect where a user is looking and translates gaze direction into control commands for computers, wheelchairs, communication devices, and other systems. Eye-gaze control is essential for people with severe motor disabilities —…

Eyelid Gesture(also: Eyelid Interaction, Eyelid-Based Input)

An eyelid gesture is a deliberate eye movement used as an input method for controlling digital devices, involving intentional opening and closing of one or both eyelids in specific patterns, sequences, and durations. Unlike simple blink detection, eyelid gestures exploit the…

11 results.