Virtual environments for visually impaired

Abstract

We provide a systematic study for generating interactive, virtual environments for the blind. We present our system as a tool for shape recognition and mobility training for the blind. In our system, head movement can be detected to indicate horizontal and vertical movements. Audio feedback is used for reinforcement. Our experiment for shape learning can guide the user in tracing the surface of a sphere by using the audio feedback. We also present a compelling case for using force feedback devices for visually impaired, and our experience with the PHANToM(TM) force feedback device is summarized. A detailed survey of present research is also presented.