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• WeAllWalk: An Annotated Dataset of Inertial Sensor Time Series from Blind Walkers

  Germán H. Flores, Roberto Manduchi · 2018 · ACM Transactions on Accessible Computing (TACCESS)

  This paper introduces WeAllWalk, an annotated dataset of inertial sensor time series collected from blind and sighted walkers navigating complex indoor routes. Ten blind volunteers (seven using a long cane, one using a guide dog, and two alternating between both) and five…

  indoor navigation · blindness · inertial sensing · step counting · turn detection

• How Context and User Behavior Affect Indoor Navigation Assistance for Blind People

  João Guerreiro, Eshed Ohn-Bar, Dragan Ahmetovic, Kris Kitani, Chieko Asakawa · 2018 · Proceedings of the 15th International Web for All Conference (W4A 2018)

  This short paper presents a fine-grained thematic analysis of user behaviour during indoor assisted navigation to understand when and why navigation errors occur even when the underlying localisation system is accurate. The research uses NavCog, a smartphone-based indoor…

  indoor navigation · blind · orientation and mobility · guide dog · white cane

• 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

• Crowdsourcing the Installation and Maintenance of Indoor Localization Infrastructure to Support Blind Navigation

  Cole Gleason, Dragan Ahmetovic, Saiph Savage, Carlos Toxtli, Carl Posthuma, Chieko Asakawa, Kris M. Kitani, Jeffrey P. Bigham · 2018 · Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT)

  This paper introduces LuzDeploy, a physical crowdsourcing system that coordinates non-expert volunteers to install and maintain Bluetooth Low Energy (BLE) beacon infrastructure for indoor navigation systems used by blind people. The central problem is that indoor navigation…

  indoor navigation · crowdsourcing · Bluetooth beacons · blind users · wayfinding

• The Present and Future of Museum Accessibility for People with Visual Impairments

  Saki Asakawa, João Guerreiro, Dragan Ahmetovic, Kris M. Kitani, Chieko Asakawa · 2018 · Proceedings of the 20th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '18, Poster)

  This short ASSETS '18 poster paper is the formative survey that motivated much of the later Miraikan and CaBot museum-accessibility work from the same research group. The authors conducted in-person semi-structured interviews with 19 people with visual impairments (16 totally…

  museum accessibility · visual impairment · indoor navigation · tactile replicas · audio description

• 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

8 results.