Glossary
Searchable terminology from accessibility, web standards, and related fields.
899 results found in Assistive Technology.
- Depth Camera (Depth Sensor, RGB-D Camera, 3D Camera)
- A depth camera is a device that captures both standard visual imagery and per-pixel distance information, producing a 3D representation of the scene. Technologies include structured light (projecting …
- Depth Estimation (Monocular Depth Estimation, Depth Prediction)
- The computer vision task of predicting the distance from the camera to each point in a scene, producing a depth map in which each pixel carries a distance value. Monocular depth estimation uses a sing…
- Depth Sensing (Depth Perception (computer vision), 3D Sensing)
- The ability of a sensor or system to measure the distance from itself to objects in the scene, producing a depth map or point cloud rather than a flat image. Common approaches include stereo vision (t…
- Design Pattern (Interaction Pattern, Pattern of Assistive Interaction)
- A reusable, generalised description of a solution to a commonly recurring design problem, expressed in a way that can be applied across different contexts without prescribing a specific implementation…
- Dialog Interface (Dialogue Interface, Conversational Interface)
- A user interface paradigm in which interaction occurs through a structured exchange of prompts and responses, typically using speech or text. In assistive technology contexts, dialog interfaces presen…
- Diarization (Speaker Diarization, Speaker Segmentation)
- The process of automatically determining "who spoke when" in an audio or video recording by segmenting the audio stream and assigning each segment to a specific speaker. In accessibility contexts, dia…
- Dichoptic presentation (Dichoptic display, Dichoptic filtering, Dichoptic stimulation)
- A technique in which different visual information is presented separately to each eye, typically using color-filtered glasses (red-cyan or red-green anaglyph), polarized lenses, or head-mounted displa…
- Digital Compass (Electronic Compass, Magnetometer)
- An electronic sensor that detects the Earth's magnetic field to determine the direction a person or device is facing, providing heading information in degrees or cardinal directions. In assistive tech…
- Digital Embroidery (Computerised Embroidery, Machine Embroidery)
- Fabrication of stitched patterns on fabric using a computer-controlled embroidery machine that reads a digitised design file (e.g., DST, EXP) and drives a needle to produce precise, repeatable stitche…
- Digital Family Portrait
- Digital Family Portrait is a 2001 research prototype from Georgia Institute of Technology (Mynatt et al.) that uses an ambient, picture-frame-style display in an adult child's home to represent the da…
- Digital Living Media (Living Media Interface, Biotic Design)
- Systems that combine living organisms with electronic components as part of a digital interface. In accessibility contexts, digital living media have been explored as motivational tools for children w…
- Digital Ruler (Reading Ruler, Line Guide)
- A digital tool that constrains the visible area of text to specific lines or paragraphs, reducing visual crowding and helping readers maintain focus on the current reading position. Digital rulers are…
- Digital Signal Processor (DSP)
- A specialised microprocessor designed to perform mathematical operations on digital signals in real time, such as filtering, compression, and pattern recognition. In assistive technology, DSPs are use…
- Digital Talking Book (DTB, DAISY Digital Talking Book, Talking book)
- A multimedia document format that synchronises text, audio narration, and navigation structure to provide accessible reading experiences for people who are blind, have low vision, or have print disabi…
- Digital fabrication (Fab, Digital manufacturing)
- The process of creating physical objects from digital designs using computer-controlled tools such as 3D printers, laser cutters, and CNC machines. In accessibility contexts, digital fabrication enabl…
- Displayless Interface (Screenless Interface, Eyes-Free Interface)
- A displayless interface is a computer interaction system that operates without a visual display, relying instead on audio, speech, haptic, or other non-visual output modalities. These interfaces serve…
- Dragon NaturallySpeaking (Dragon Dictation, Dragon Speech Recognition, Nuance Dragon)
- Dragon NaturallySpeaking is a commercial speech recognition software product, originally developed by Dragon Systems and later acquired by Nuance Communications (now part of Microsoft). It converts sp…
- DragonDictate (Dragon Dictate)
- An early discrete speech recognition system developed by Dragon Systems that allowed users to control computers and dictate text by speaking one word at a time with brief pauses between words. Release…
- Drone Accessibility (UAV Accessibility, Accessible Drone Piloting)
- The design and adaptation of unmanned aerial vehicles (drones) and their control interfaces to be usable by people with disabilities. This includes providing alternative input methods such as voice co…
- Duxbury Braille Translator (Duxbury, DBT)
- A commercial Braille translation software package (Duxbury Systems) widely used by transcribers and production agencies to convert print text and documents into contracted and uncontracted Braille, in…