Touching 2D Images Using Haptogram System

摘要

In this paper, we demonstrate a system to render point-cloud tactile interaction with an aerial still image using a two-dimensional array of ultrasound transducers. The novelty in this demonstration is the ability to control the intensity of the tactile stimulation. The holographic display projects a 2-D image with vertical bars of different colors. Each color corresponds to different intensity of tactile stimulation. The 2-D image pixels are represented as a point-cloud of focal points where the ultrasound array switches between these focal points.