Glossary

Searchable terminology from accessibility, web standards, and related fields.

6660 terms — page 150 of 333

Image-Based Interface (Photo-Based Interface, Picture-Based Interface)
A user interface design approach that uses photographs, icons, or other visual images as the primary means of interaction and identification, minimizing or eliminating the need for text. Image-based i…
Image-to-3D Generation (Image-to-3D Conversion, 2D-to-3D Generation)
An AI-powered process that converts two-dimensional images into three-dimensional digital models suitable for manipulation, rendering, or physical fabrication via 3D printing. In assistive technology …
ImageNet
ImageNet is a large-scale visual database containing over 14 million labeled images organized into thousands of categories, widely used for training and benchmarking computer vision models. Many objec…
Imaginary Interface (Spatial Memory Interface, Empty-Handed Interaction)
An interaction paradigm where users interact with a virtual interface mapped to empty space or their own body, without any physical device in the interaction area. Users transfer their spatial memory …
Imagined Device (Imaginary Device, Imagined Input Device)
An input device that exists only in the user's imagination, with no physical form, operated through gestures that draw on mental models of a real counterpart such as a smartphone, remote control, or j…
Imagined Voluntary Movement-Related Potentials (IVMRPs, Motor Imagery Potentials)
Electrical brain signals generated when a person imagines performing a voluntary movement without actually executing it. These potentials, detectable via EEG electrodes placed over motor cortex areas,…
Imitation (Embodied Imitation)
The act of observing and reproducing another person's actions, gestures, or vocalisations. Imitation is a foundational social and developmental skill that supports language acquisition, motor learning…
Immersion
The objective level of sensory fidelity that a VR system provides, including visual quality, spatial audio, and haptic feedback that work together to create a convincing virtual environment. Unlike pr…
Immersive Analytics (3D Data Visualisation, Spatial Analytics, Immersive Visualisation)
Immersive analytics is the application of interactive 3D, virtual reality (VR), or augmented reality (AR) technologies to support data exploration, analysis, and decision-making. By leveraging spatial…
Immersive Media (Immersive Content, Immersive Technology)
Digital content and technologies designed to create a sense of presence and embodiment by surrounding users with stimuli that engage multiple senses. This includes 360-degree video, virtual reality, a…
Immersive Reader (Reading Mode, Reader View)
A built-in feature in web browsers, learning management systems, and productivity applications (such as Microsoft Immersive Reader) that simplifies the visual presentation of content by stripping away…
Immersive Storytelling (Interactive Narrative, VR Storytelling)
A narrative approach that places users inside a story environment, allowing them to experience and interact with the narrative through spatial presence, sensory engagement, and active participation. I…
Immersive Video (Immersive Media, VR Video)
Video content viewed through head-mounted displays or surrounding screens that creates a sense of being present within the recorded environment. Immersive video includes 360-degree video captured with…
Immersive Virtual Reality (IVR, Immersive VR)
A form of virtual reality that uses head-mounted displays (HMDs) with near-full field of view, positional tracking, and often gesture-based controllers to create a sense of being physically present in…
Implementation Science
The study of methods and strategies that promote the systematic uptake of research findings and evidence-based practices into routine clinical, educational, or service settings. Implementation science…
Implicit Interaction (Implicit Input, Implicit Human-Computer Interaction)
Implicit interaction refers to user input that the system infers from natural behaviors not explicitly performed for the purpose of issuing commands, such as gaze, gait, posture, physiological signals…
Implicit Scoping (Prioritized Scoping)
A voice navigation strategy that combines the efficiency of relaxed scoping with intelligent disambiguation. In implicit scoping, the system maintains awareness of the user's current focus area and pr…
Implicit User (Model User, Implied User)
A concept from semiotic engineering describing the hypothetical user that a designer envisions when creating an interface — encompassing assumptions about the user's behaviour, experience, competence,…
Imposter syndrome (Impostor phenomenon)
A psychological pattern in which individuals doubt their accomplishments and fear being exposed as a fraud, despite evidence of competence. Imposter syndrome is particularly prevalent among neurodiver…
Impostor Syndrome (Impostor Phenomenon, Impostorism)
A psychological pattern in which individuals doubt their accomplishments and fear being exposed as fraudulent despite evidence of competence. For people with disabilities, impostor syndrome is often i…