Literature Reviews
Reviewed research papers, articles, and publications relevant to digital accessibility.
85 results found tagged tactile graphics.
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Multimodal Virtual Reality Versus Printed Medium in Visualization for Blind People
This paper presents a comparative evaluation of two approaches for making bar chart data accessible to blind and visually impaired people: traditional raised tactile diagrams and a multimodal virtual reality system. The VR system combines a SensAble …
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A Study of Blind Drawing Practice: Creating Graphical Information Without the Visual Channel
This paper from UC Berkeley investigates how blind users create drawings and proposes a grid-based model for non-visual drawing tools. The researchers began by observing that existing drawing tools for blind users fail because they lack adequate cont…
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Tactile Imaging Using Watershed-Based Image Segmentation
This paper from the University of Delaware proposes a new image segmentation method for automatically converting visual images into tactile representations suitable for display on tactile devices such as microcapsule (swell) paper. The core problem a…
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Constructing Sonified Haptic Line Graphs for the Blind Student: First Steps
This paper presents early research from the University of Glasgow's MultiVis project, a three-year initiative investigating how different sensory modalities can make statistical information representations accessible to blind people. The focus is on …
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TGuide: A Guidance System for Tactile Image Exploration
This paper presents TGuide, a system that actively guides blind users' hands during exploration of tactile graphics using a novel vibrotactile directional output device. The author identifies three key problems with unaided tactile image exploration:…
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TDraw: A Computer-Based Tactile Drawing Tool for Blind People
This paper from Freie Universität Berlin presents TDraw, a computer-based system that enables blind people to create tactile drawings and, equally importantly, allows researchers to study how blind people draw. The paper begins with a theoretical ana…
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AudioGraf: A Diagram-Reader for the Blind
This paper from ETH Zürich presents AudioGraf, a system that enables blind and visually impaired users to read diagrams through a combination of touch panel input and auditory display. The core problem addressed is that diagrams — widely used in tech…
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Tactile Chart Generation Tool
This paper presents a Java application that automatically generates tactile bar and pie charts from raw data values provided in a formatted text file. Developed in collaboration with Vision Australia, the tool addresses the time-consuming and expensi…
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Refreshable tactile graphics applied to schoolbook illustrations for students with visual impairment
This paper presents research on making schoolbook illustrations accessible to students with visual impairments using a refreshable tactile display system. The system combines the STReSS2 (Stimulator of Tactile Receptors by Skin Stretch), a device tha…
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Instant Tactile-Audio Map: Enabling Access to Digital Maps for People with Visual Impairment
This paper presents an automated system for converting standard digital map images into interactive tactile-audio maps that people who are blind can explore independently. The core problem addressed is that while online map services like Google Maps …