Glossary

Search results

Gaze(also: Eye Gaze, Gaze Direction, Point of Regard)

The direction in which a person is looking, typically measured as the point of visual fixation on a display or in a physical environment. Gaze tracking technology captures where users look and for how long, enabling gaze-based input for motor-impaired users who cannot use…

Gaze Fixation(also: Eye Fixation, Visual Fixation)

The act of maintaining one's gaze steadily on a specific point or target, as opposed to saccadic eye movements between points. In gaze-based assistive technology, gaze fixation is the primary mechanism for making selections — users fixate on a desired target for a set dwell time…

Gaze Input(also: Eye Tracking Input, Gaze-Based Interaction, Eye Control)

An input method that uses eye-tracking technology to detect where a user is looking, enabling interaction with digital interfaces through eye movements such as fixation (dwelling on a target), smooth pursuit (following a moving target), or blinks. Gaze input is a critical…

Gaze Interaction(also: Gaze-Based Interaction, Gaze Input, Eye Gaze Control)

Gaze interaction is a method of controlling computers and devices by tracking where a person is looking on the screen. Using eye-tracking technology, the system detects the user's point of gaze and translates it into cursor movement or selection actions, often combined with…

Gaze-Based Interaction(also: Gaze Input, Eye-Gaze Interaction, Gaze Control)

An interaction method where users control digital interfaces by directing their visual gaze at on-screen targets, typically detected through eye tracking or head orientation tracking. In accessibility contexts, gaze-based interaction provides an alternative input modality for…

Gazepoint(also: Gaze Point, Point of Gaze)

The specific point on a screen or surface where a person is looking at any given moment, as determined by an eye tracking system. The gazepoint is calculated from the gaze vector — the line extending from the eye to the display — and is typically reported as x,y coordinates. Eye…

Gestural Input(also: Gesture-based Input, Touch Gestures)

Input methods that interpret finger movements on a touchscreen as commands, including taps, swipes, pinches, and multi-finger gestures. For blind users, gestural input must be performed without visual feedback, requiring consistent gesture recognition regardless of screen…

Gestural Interaction(also: Gesture-Based Interaction)

A mode of human-computer interaction in which users control systems through movements of the body — hands, arms, head, eyes, or whole body — captured by sensors such as accelerometers, cameras, IMUs, or depth sensors. Gestural interaction supports hands-free or low-force control…

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

An input method that uses physical movements of the body — typically hands, fingers, arms, or head — to interact with digital systems. Gesture input includes touchscreen gestures (swipes, taps, pinches), mid-air gestures detected by cameras or motion sensors, and motion gestures…

Gesture Interaction(also: Gesture-based interaction, Gestural interfaces)

An input modality in which users control digital systems through hand, arm, or body movements detected by cameras, depth sensors, IMUs, or wearable devices rather than through traditional keyboards, pointing devices, or touchscreens. Gesture interaction underpins many augmented…

Gesture Recognition(also: Gesture Detection)

The computational process of identifying and interpreting human gestures—typically hand, arm, or body movements—using sensors and machine learning algorithms. Gesture recognition systems analyze data from cameras, accelerometers, gyroscopes, or other sensors to classify…

Gesture Typing(also: Swipe Typing, Trace Typing, Glide Typing)

A text entry method on touchscreen devices where the user enters a word by continuously gliding their finger from letter to letter on a virtual keyboard without lifting it, rather than tapping each key individually. The continuous trace is interpreted by a statistical decoder…

Gesture-Based Input(also: Gesture input, Gestural input, Gesture-based text entry)

An input method that interprets finger or hand movements — such as swipes, taps, and drawn paths — as commands or text characters. For people with visual impairments, gesture-based input on touchscreens offers an alternative to traditional keyboard layouts that require targeting…

Gesture-Based Interface(also: Gestural Interface, Gesture Recognition Interface)

An interaction system that interprets human gestures—such as hand movements, body poses, or finger motions—as input commands. Gesture-based interfaces can use cameras, accelerometers, touch surfaces, or wearable sensors to detect and interpret movement. In accessibility, they…

Goal Crossing(also: Crossing-Based Input, Crossing Interface)

An input technique where users select targets by moving through a boundary line rather than clicking within a target area. Research shows goal crossing can improve input performance for people with motor impairments by reducing the precision demands of target acquisition—users…

Grasp Recognition

Technology that detects and interprets how a user holds, grips, or manipulates objects, typically through sensors in VR controllers or camera-based hand tracking. In VR accessibility, grasp recognition is relevant because it can enable more natural object manipulation in virtual…

Grid-Based Cursor Control(also: Grid-Based Navigation, Grid Overlay Navigation)

A hands-free cursor positioning technique that overlays a numbered grid on the screen, allowing users to select a cell by voice command or other input to recursively zoom into smaller screen regions until the desired target is reached. Grid-based approaches reduce the vocabulary…

17 results.