Voice Navigation for Visually Impaired People in Indoor Environment

  • 蔡 凱宇

Student thesis: Doctoral Thesis

Abstract

During daily life “moving around” is easy for people who are not vision impairment but it is the most challenge for visually impairment people As visually impaired people living independent the main barrier for them is the difficult of spatial navigation Visually impaired people usually explore in the indoor and outdoor environment In order to move the goal they have to go through these environments or make the route plans before to make a series of decision Visually impaired people can use other consciousness to explore environment and build the mental map Relating spatial cognition theories improved that combining different conscious inputs to make the spatial cognition would also very similar to the spatial memory constructing by visual Through voice navigation to describe the environment information it will describe the landmark was constructed by the people not use visual consciousness directly and visually impaired people not need to explore by themselves can make the correct mental map quickly The study was making two stages of experiment (making A/ B voice navigation versions and then A/ B voice navigation versions on test) to clarify the suitable voice navigation for visually impaired people step by step (1) Making A/ B voice navigation versions the experiment recruiting four visually impaired people (Group VI) and four not visually impaired people (Group NVI) totally were eight participants Through exploring the foreign indoor environment and making each group’s voice navigation version (2) A/ B voice navigation versions on test the experiment recruiting 31 visually impaired people and 32 not visually impaired people (sighted people wore a blindfold) totally were 63 participants On test the voice navigation (version A) for visually impaired people and the voice navigation (version B) for not visually impaired people of the item of navigation complete times successful percent sense of direction sense of safety knowing their location grade of understanding grade of satisfying separately The research result represented that visually impaired people and not visually impaired people used the voice navigation (version A) which was created by visually impaired people was greater than voice navigation (version B) which was created by not visually impaired people in successful percent of navigation the sense of direction the sense of safety knowing their location and grade of satisfying obviously The study improved that voice navigation (version A) will enhance the effect of visually impaired people to explore foreign environment
Date of Award2019
Original languageEnglish
SupervisorYu-Hsiu Hung (Supervisor)

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