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• Mind Your Crossings: Mining GIS Imagery for Crosswalk Localization

  Dragan Ahmetovic, Roberto Manduchi, James M. Coughlan, Sergio Mascetti · 2017 · ACM Transactions on Accessible Computing (TACCESS)

  This paper presents a computer vision system for automatically detecting and localizing zebra crosswalks in urban environments by mining existing geospatial image databases, specifically Google satellite imagery and Google Street View. The motivation is that blind pedestrians…

  visual impairment · orientation and mobility · computer vision · navigation · crowdsourcing

• Virtual Navigation for Blind People: Building Sequential Representations of the Real-World

  João Guerreiro, Dragan Ahmetovic, Kris M. Kitani, Chieko Asakawa · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper investigates whether blind people can build accurate mental representations of real-world routes by virtually navigating them on a smartphone before physically visiting the location. Sighted people routinely study maps before visiting new places, building a sequential…

  blindness · navigation · cognitive mapping · virtual navigation · orientation and mobility

• NavCog3: An Evaluation of a Smartphone-Based Blind Indoor Navigation Assistant with Semantic Features in a Large-Scale Environment

  Daisuke Sato, Uran Oh, Kakuya Naito, Hironobu Takagi, Kris Kitani, Chieko Asakawa · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper presents NavCog3, a smartphone-based indoor navigation assistant for people with visual impairments, evaluated at scale in a 21,000 m² shopping mall in Japan. Unlike many prior indoor navigation prototypes that were tested only in constrained lab environments, NavCog3…

  indoor navigation · blindness · visual impairment · wayfinding · Bluetooth beacons

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