Glossary

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Finger Assistive Device(also: FAD)

A category of wearable assistive devices worn on a finger or fingertip that extend sensing or actuation to the primary locus of tactile perception. The term was introduced by Shilkrot et al. to classify finger-worn input technologies, particularly those developed for blind and…

Finger-Worn Camera(also: Ring camera, Finger-mounted camera, Finger assistive camera)

A miniature camera attached to a finger, typically via a ring or thimble-like housing, that captures images from the hand rather than from the head or chest. In accessibility contexts, finger-worn cameras enable blind and low-vision users to point and query objects through…

Finger-mounted Camera(also: Fingertip Camera, Wearable Finger Camera)

A small camera device worn on the finger that enables direct, tactile interaction with printed documents for blind and low-vision users. Unlike handheld or phone-based cameras, finger-mounted systems allow users to trace text with their finger while receiving real-time feedback…

Fingertip Deflection

A haptic guidance technique in which a wearable device gently pulls or tilts the fingertip in a chosen direction (abduction, adduction, flexion, or extension) to bias arm motion toward a target during reach. Unlike vibrotactile alerts that must be symbolically decoded, fingertip…

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