A Hand Wearable Device Used in Local Curvature Recovery

Abstract

In virtual curvature perception, extrusion-type curvature reproduction that refers to extruding the fingertip by a plate to render skin and muscle deformation so as to obtain the sense of curvature, is the way that with favorable effects. However, as the extrusion stimulus is always a rigid plate, the contact surface between the finger and the plate is a plane, only height difference and attitude difference are considered but not the local curvature. This work presents a hand wearable device which is used to recover local curvature by lifting up or pressing down the finger according to touch position in the process of exploring, which is a supplement to traditional extrusion-type curvature reproduction.