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An Empirical Study of Verbal Map Guidelines for Visually-impaired people to Enhance Daily Mobility

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  • Visually-Impaired People / Verbal Map / Navigation System / Field Experiment
  • Design


An Empirical Study of Verbal Map Guidelines for Visually-impaired people to Enhance Daily Mobility Mei TAKAHASHI* and Takashi UCHIDA** (Received September 30, 2013) Synopsis This study was conducted to revise verbal map guidelines for a pedestrian navigation system. The guidelines show rules for describing features in a town to enhance everyday mobility. This report presents a review of earlier studies and explains the concept of an audio augmented reality (AR) application for visually-impaired people. Then, field experiments are conducted to assess methods to encourage visually-impaired people to use audio guidance through courses and to advance hearing research. Outlines, results, and consideration of the experiments are presented. Finally, verbal map guidelines are revised. This study assessed a system necessary for a navigation system for visually-impaired people to enhance everyday mobility. The system can be managed continuously by sharing feature information from users with other users according to guidelines. KEYWORDS: Visually-impaired people, Verbal map, Navigation systemヲFieldexperiment 1. Research Background and Objectives (1) Background A typical smartphone has a global positioning system (GPS)白nctionand a web access function. Furthermore, augmented reality (AR) applications of smartphones have become commonplace. Such phones can display appropriate information for a location on a screen. However, visually-impaired people cannot see a screen and cannot use AR applications. Therefore, they must ask sighted people to take them to a place to which they have never walked before. A navigation system must be designed as soon as possible for practical use by visually-impaired people to enhance everyday mobility. Therefore, earlier studies1l2l developed systems using Radio Frequency IDentification (RFID) tags which make up for GPS and a“verbal map”that explains feature information to visually-impaired people using audio guidance. Timing of the

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