Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- On-Body Interaction(also: Body-centric interaction, Skin input, On-body input)
- An interaction paradigm that uses the surface of the user's own body as an input medium, typically through gestures like taps, swipes, or touches on the skin. On-body interaction leverages tactile and proprioceptive feedback from the user's own body, making it potentially…
- On-body Input(also: Skin-based Input, Body-based Interaction)
- An interaction technique that uses the surface of the user's own body — typically the hand, arm, or other skin areas — as an input surface for controlling digital devices. On-body input is sensed through wearable cameras, depth sensors, capacitive touch sensors, or acoustic…
- Optical Flow
- A computer vision method that estimates the apparent motion of objects between consecutive video frames by tracking pixel displacement patterns. Optical flow calculates velocity vectors showing movement direction and speed across an image. In assistive technology, optical flow…
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