Navigation Problems in Blind-to-Blind Pedestrians Tele-assistance Navigation

  • Jan BalataEmail author
  • Zdenek Mikovec
  • Ivo Maly
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9296)


We raise a question whether it is possible to build a large-scale navigation system for blind pedestrians where a blind person navigates another blind person remotely by mobile phone. We have conducted an experiment, in which we observed blind people navigating each other in a city center in 19 sessions. We focused on problems in the navigator’s attempts to direct the traveler to the destination. We observed 96 problems in total, classified them on the basis of the type of navigator or traveler activity and according to the location in which the problem occurred. Most of the problems occurred during the activities performed by the navigator. We extracted a set of guidelines based on analysis of navigation problems and successful navigation strategies. We have partially mapped the problem of tele-assistance navigation to POMDP based dialogue system.


Visually impaired Navigation Tele-assistance User study 



This research has been supported by the project Design of special user interfaces funded by grant no. SGS13/213/OHK3/3T/13 (FIS 161 – 832130C000).


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Copyright information

© IFIP International Federation for Information Processing 2015

Authors and Affiliations

  1. 1.Faculty of Electrical Engineering, Department of Computer Graphics and InteractionCzech Technical University in PraguePragueCzech Republic

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