Literature Reviews
Reviewed research papers, articles, and publications relevant to digital accessibility.
80 results found tagged orientation and mobility.
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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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Airport Accessibility and Navigation Assistance for People with Visual Impairments
This paper investigates whether a BLE-beacon-based smartphone navigation system can enable visually impaired travelers to move through an airport independently — a setting where they are currently required to rely on airline-provided sighted escorts …
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BlindPilot: A Robotic Local Navigation System that Leads Blind People to a Landmark Object
Most indoor-navigation research for blind travellers has focused on what the authors call 'global' navigation — getting from a building entrance to a room, gate, or exhibit. The 'last few metres' of the journey, a body-scale interaction with a specif…
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Smartphone-Based Assistance for Blind People to Stand in Lines
This CHI 2020 Late-Breaking Work is the preliminary study that seeded the CHI 2021 LineChaser paper by the same research group. Where the fuller LineChaser system would later combine line-end finding with AR-marker-based localisation and a dual audio…
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PathFinder: Designing a Map-less Navigation System for Blind People in Unfamiliar Buildings
Map-based indoor navigation systems for blind travellers (CaBot, NavCog, BLE-beacon apps) work well when a prebuilt map exists, but building and maintaining those maps is labour-intensive and has only been done for a tiny fraction of the world's buil…
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Guiding Blind Pedestrians in Public Spaces by Understanding Walking Behavior of Nearby Pedestrians
Collisions with other pedestrians are one of the most common hazards for blind travellers in public space — 87.8% of blind people report colliding or nearly colliding with pedestrians, bicycles, or obstacles. White canes detect contact rather than ap…
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LineChaser: A Smartphone-Based Navigation System for Blind People to Stand in Lines
Standing in line is a mundane-looking task — at a cashier, bus stop, or airport check-in — but for a blind person it is a brittle, anxiety-ridden sequence: find where the line currently ends (a position that moves), join it without bumping into anyon…
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Corridor-Walker: Mobile Indoor Walking Assistance for Blind People to Avoid Obstacles and Recognize Intersections
Walking an indoor corridor independently is deceptively hard for a blind traveller. Two problems compound: avoiding obstacles stacked against the wall (the same wall the traveller uses as a tactile guide) and recognising when an intersection has arri…
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ChitChatGuide: Conversational Interaction Using Large Language Models for Assisting People with Visual Impairments to Explore a Shopping Mall
ChitChatGuide is a smartphone-based indoor navigation system that wraps a GPT-4-powered conversational interface around an existing BLE-beacon localisation stack (HULOP) to support something most blind-navigation research overlooks: casual, purpose-l…
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Snap&Nav: Smartphone-based Indoor Navigation System For Blind People via Floor Map Analysis and Intersection Detection
Snap&Nav is a smartphone-based indoor navigation system for blind travellers that works in any building with a visible floor map, without requiring the building owner to pre-build a digital map, install BLE beacons, or deploy any other localisation i…