Wearable Range-Vibrotactile Field: Design and Evaluation

  • Frank G. Palmer
  • Zhigang Zhu
  • Tony Ro
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7383)


Touch is one of the most natural methods of navigation available to the blind. In this paper, we propose a method to enhance a person’s use of touch by placing range sensors coupled with vibrators throughout their body. This would allow them to be able to feel objects and obstacles in close proximity to them, without having to physically touch them. In order to make effective use of this vibrotactile approach, it is necessary to discern the perceptual abilities of a person wearing small vibrators on different parts of their body. To do this, we designed a shirt with small vibrators placed on the wrists, elbows, and shoulders, and ran an efficient staircase PEST algorithm to determine their sensitivities on those parts of their body.


Spatial Navigation Vibrotactile Threshold Alternative Perception Vibrotactile Feedback Pulse Width Modulation Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Frank G. Palmer
    • 1
  • Zhigang Zhu
    • 1
  • Tony Ro
    • 2
  1. 1.City College Visual Computing LaboratoryGrove School of Engineering, City College of New YorkNew YorkUSA
  2. 2.Department of PsychologyGrove School of Engineering, City College of New YorkNew YorkUSA

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