The effects of video image frame rate on the environmental hazards recognition performance in using remote vision to navigate visually impaired pedestrians

  • Authors:

  • Vanja Garaj;Ziad Hunaiti;Wamadeva Balachandran

  • Affiliations:

  • Brunel University, Uxbridge, Middlesex, UK;Anglia Ruskin University, Chelmsford, UK;Brunel University, Uxbridge, Middlesex, UK

  • Venue:
  • Mobility '07 Proceedings of the 4th international conference on mobile technology, applications, and systems and the 1st international symposium on Computer human interaction in mobile technology
  • Year:
  • 2007

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Abstract

This paper presents the results of a study to determine the effects of video image frame rate on the performance of the sighted human guide in recognizing static hazards in the travel environment - a basic activity in using remote vision to navigate visually impaired pedestrians. The results show that variations in the frame rate (25 fps and 2 fps) do not cause a significant difference in the ability to recognize static hazards in the travel environment based on video image. The study was conducted as a part of the process of development of a novel system for navigation of visually impaired people. The system, titled the System for Remote Sighted Guidance of Visually Impaired Pedestrians, is being developed by the Electronic Systems Research Group at the School of Engineering and Design, Brunel University.