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• Turn Right: Analysis of Rotation Errors in Turn-by-Turn Navigation for Individuals with Visual Impairments

  Dragan Ahmetovic, Uran Oh, Sergio Mascetti, Chieko Asakawa · 2018 · Proceedings of the 20th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '18)

  This paper examines a frequently overlooked problem in navigation assistance for blind and visually impaired (BVI) people: how accurately users execute rotation instructions during turn-by-turn guidance. While much research has focused on improving localization accuracy (knowing…

  navigation · blindness · orientation and mobility · indoor navigation · assistive technology

• Variability in Reactions to Instructional Guidance during Smartphone-Based Assisted Navigation of Blind Users

  Eshed Ohn-Bar, João Guerreiro, Kris Kitani, Chieko Asakawa · 2018 · Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)

  This paper takes a close, sensor-level look at something most indoor-navigation research glosses over: how differently individual blind users actually react to the same spoken instruction. The authors instrumented a smartphone-and-BLE-beacon turn-by-turn system (based on NavCog)…

  indoor navigation · turn-by-turn navigation · blindness · visual impairment · assistive technology

• Modeling Expertise in Assistive Navigation Interfaces for Blind People

  Eshed Ohn-Bar, João Guerreiro, Dragan Ahmetovic, Kris M. Kitani, Chieko Asakawa · 2018 · Proceedings of the 23rd International Conference on Intelligent User Interfaces (IUI)

  This short IUI paper asks a question most assistive-navigation research leaves unasked: what happens as a blind user becomes an expert on a route? Existing smartphone guidance apps deliver the same instruction set on a user's tenth trip down a corridor as on their first,…

  blind navigation · indoor navigation · turn-by-turn navigation · visual impairment · blindness

• Environmental Factors in Indoor Navigation Based on Real-World Trajectories of Blind Users

  Hernisa Kacorri, Eshed Ohn-Bar, Kris M. Kitani, Chieko Asakawa · 2018 · Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems

  This paper addresses a methodological blind spot in blind-navigation research: studies typically report localization accuracy and completion time, but say almost nothing about how the physical environment itself shapes where users go wrong. The authors argue that the same…

  indoor navigation · turn-by-turn navigation · blindness · visual impairment · assistive technology

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