Surface roughness judgment during finger exploration is changeable by visual oscillations

Abstract

Previously, we proposed a pseudo-haptic method of changing the perceived roughness of virtual textured surfaces represented by vibrational feedback during pen-surface interaction. This study extends the method to finger-surface interactions in order to change the roughness judgment of real surface. Users watched computer-generated visual oscillations of the contact point while exploring the texture using bare fingers. The user study showed that our method could modify roughness judgment of real textured surfaces.