Literature Reviews
Reviewed research papers, articles, and publications relevant to digital accessibility.
8 results found tagged turn-by-turn navigation.
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NavCog: A Navigational Cognitive Assistant for the Blind
This paper introduces NavCog, an iPhone-based turn-by-turn navigation assistant designed to guide blind users through unfamiliar indoor and outdoor environments without requiring expensive infrastructure or structural modifications. The authors argue…
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Modeling Expertise in Assistive Navigation Interfaces for Blind People
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 corrid…
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Environmental Factors in Indoor Navigation Based on Real-World Trajectories of Blind Users
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 autho…
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Variability in Reactions to Instructional Guidance during Smartphone-Based Assisted Navigation of Blind Users
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-…
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Turn Right: Analysis of Rotation Errors in Turn-by-Turn Navigation for Individuals with Visual Impairments
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 l…
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Achieving Practical and Accurate Indoor Navigation for People with Visual Impairments
This paper presents improvements to the NavCog indoor navigation system that achieve sub-meter localization accuracy for blind pedestrians while significantly reducing the infrastructure cost of deploying BLE (Bluetooth Low Energy) beacon networks. G…
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NavCog3 in the Wild: Large-scale Blind Indoor Navigation Assistant with Semantic Features
This paper presents NavCog3, a smartphone-based indoor navigation assistant for people with visual impairments that combines high-accuracy Bluetooth beacon localization with rich semantic environmental features. The system uses off-the-shelf BLE beac…
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Deep Learning Compensation of Rotation Errors During Navigation Assistance for People with Visual Impairments or Blindness
This paper addresses a critical but often overlooked problem in turn-by-turn navigation assistance for people with visual impairments or blindness (VIB): rotation errors at turning points. While much navigation research focuses on improving localizat…