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Shoval, S., Ulrich, I., and Borenstein, J., "Computerized Obstacle Avoidance Systems for the Blind and Visually Impaired." Invited chapter in "Intelligent Systems and Technologies in Rehabilitation Engineering." Editors
 

Summary: Shoval, S., Ulrich, I., and Borenstein, J., "Computerized Obstacle Avoidance Systems for the Blind and Visually
Impaired." Invited chapter in "Intelligent Systems and Technologies in Rehabilitation Engineering." Editors:
Teodorescu, H.N.L. and Jain, L.C., CRC Press, ISBN/ISSN: 0849301408, Publication Date: 12/26/00, pp. 414-448.
Computerized Obstacle Avoidance Systems for the Blind
and Visually Impaired
by
Dr. Shraga Shoval* Mr. Iwan Ulrich** and Dr. Johann Borenstein***
* Faculty of Industrial Engineering and Management Technion, Israel
** Robotics Institute, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA
*** Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor,
Michigan, USA.
Abstract
This chapter gives an overview of existing devices for the guidance of visually impaired
pedestrians and discusses the properties of the white cane and of conventional electronic
travel aids. Also described are the disadvantages of using a standard mobile robot for this
purpose. Next follows a description of the NavBelt, a computerized travel aid for the blind
that is based on advanced mobile robot obstacle avoidance technology. The NavBelt is worn
by the user like a belt and, via a set of stereo earphones, provides acoustic signals that guide
the user around obstacles. One limitation of the NavBelt is that it is exceedingly difficult for
the user to comprehend the guidance signals in time to allow fast walking.

  

Source: Areibi, Shawki M - School of Engineering, University of Guelph
Borenstein, Johann - Department of Mechanical Engineering, University of Michigan

 

Collections: Engineering