Hybrid NFC and Vision Based Navigation System in Subways for the Blind and Visually Impaired
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2015-12-31
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TRIS Online Accession Number:01590467
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Edition:Final Report
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Abstract:This research introduces an indoor navigation system for blind and visually impaired users. The authors deploy visual tags in the environment at specific landmarks and introduce a visual tag detection algorithm using a sampling probe and cascading approach. Guidelines are provided to determine the visual tag size which is a function of various environmental and usage scenarios, which differ in lighting, dimensions of the indoor environment and angle of usage. The authors also developed a Smartphone based user interface for the visually impaired users that uses Android accessibility features.
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