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• Investigating Laboratory and Everyday Typing Performance of Blind Users

  Hugo Nicolau, Kyle Montague, Tiago Guerreiro, André Rodrigues, Vicki L. Hanson · 2017 · ACM Transactions on Accessible Computing (TACCESS)

  This paper presents the first longitudinal study comparing blind users' touchscreen typing performance in laboratory versus everyday real-world settings. Over 12 weeks, five novice blind smartphone users participated in eight weekly laboratory sessions while also having their…

  visual impairment · text entry · touchscreen · mobile accessibility · longitudinal study

• 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

• Design and Real-World Evaluation of Eyes-Free Yoga: An Exergame for Blind and Low-Vision Exercise

  Kyle Rector, Roger Vilardaga, Leo Lansky, Kellie Lu, Cynthia L. Bennett, Richard E. Ladner, Julie A. Kientz · 2017 · ACM Transactions on Accessible Computing (TACCESS)

  This paper presents Eyes-Free Yoga, an accessible exergame using the Microsoft Kinect that acts as a yoga instructor for people who are blind or have low vision, providing personalized auditory feedback based on real-time skeletal tracking. People with visual impairments face…

  visual impairment · exergame · exercise · Kinect · audio feedback

• On the Evaluation of Novel Sonification Techniques for Non-Visual Shape Exploration

  Sergio Mascetti, Andrea Gerino, Cristian Bernareggi, Lorenzo Picinali · 2017 · ACM Transactions on Accessible Computing (TACCESS)

  This paper proposes and evaluates six novel sonification techniques for enabling blind and visually impaired users to explore and recognize shapes on touchscreen devices, comparing them against two existing techniques from the literature. The motivation is that graphical…

  sonification · visual impairment · STEM accessibility · touchscreen · shape recognition

• Technology, Education and Access: A "Fair Go" for People with Disabilities

  Scott Hollier · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This keynote is a personal narrative by Dr. Scott Hollier, a digital access specialist diagnosed with Retinitis Pigmentosa at age five, tracing how technology and education have shaped his life and career in accessibility. Hollier frames the talk around the Australian concept of…

  lived experience · visual impairment · retinitis pigmentosa · assistive technology · consumer technology

• Math Melodies: Supporting Visually Impaired Primary School Students in Learning Math

  Dragan Ahmetovic, Valeria Alampi, Cristian Bernareggi, Andrea Gerino, Sergio Mascetti · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This demonstration paper presents Math Melodies, a free iPad application designed to teach mathematics to primary school children who are blind or visually impaired, while simultaneously engaging sighted peers. Mathematics education poses particular challenges for visually…

  visual impairment · blindness · education accessibility · mathematics accessibility · children

• WAEM: A Web Accessibility Evaluation Metric Based on Partial User Experience Order

  Shuyi Song, Can Wang, Liangcheng Li, Zhi Yu, Xiao Lin, Jiajun Bu · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This paper introduces WAEM (Web Accessibility Experience Metric), a novel accessibility metric that derives checkpoint weights from actual user experience data rather than from WCAG priority levels. The authors demonstrate that existing metrics like WAB and WAQM, which weight…

  accessibility metrics · user experience · accessibility evaluation · machine learning · SVM

• Producing Accessible Statistics Diagrams in R

  Donal Fitzpatrick, A. Jonathan R. Godfrey, Volker Sorge · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This paper presents a system for making statistical diagrams accessible to blind users by generating semantically enriched SVG graphics from the R statistical computing environment. The core problem is that statistical graphics — bar charts, histograms, box plots, scatter plots,…

  data visualization accessibility · STEM accessibility · visual impairment · blindness · screen readers

• Achieving Practical and Accurate Indoor Navigation for People with Visual Impairments

  Dragan Ahmetovic, Masayuki Murata, Cole Gleason, Erin Brady, Hironobu Takagi, Kris Kitani, Chieko Asakawa · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  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. GPS provides outdoor…

  indoor navigation · visual impairment · blindness · BLE beacons · Bluetooth Low Energy

• ChattyBooks and ChattyBook Service

  Masakazu Suzuki, Katsuhito Yamaguchi · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This demonstration paper presents ChattyBooks, a Windows application that converts STEM content in DAISY/accessible EPUB3 format into audio-embedded HTML5 with JavaScript, enabling playback in any web browser on any platform without requiring specialized DAISY/EPUB3 players. The…

  STEM accessibility · DAISY · EPUB · MathML · mathematics accessibility

• Subjective Evaluation of Website Accessibility and Usability: A Survey for People with Sensory Disabilities

  Tahani Alahmadi, Steve Drew · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This paper presents a novel subjective evaluation model for assessing web accessibility and usability from the perspective of students with sensory disabilities, applied to Australian university websites. The model integrates accessibility criteria from WCAG 2.0 and Section 508…

  accessibility evaluation · usability · university websites · education accessibility · sensory disabilities

• Extraction of Tabular Data from Document Images

  Manolis Vasileiadis, Nikolaos Kaklanis, Konstantinos Votis, Dimitrios Tzovaras · 2017 · Proceedings of the 14th International Web for All Conference (W4A)

  This demonstration paper presents an open-source tool for automatically detecting and extracting tabular data from document images — both scanned and digitally created — and converting them into accessible HTML format. The work addresses a significant accessibility gap: tables…

  document accessibility · OCR · table recognition · visual impairment · document conversion

• Enabling Collaboration in Learning Computer Programing Inclusive of Children with Vision Impairments

  Anja Thieme, Cecily Morrison, Nicolas Villar, Martin Grayson, Siân Lindley · 2017 · Proceedings of the 2017 Conference on Designing Interactive Systems (DIS)

  This paper from Microsoft Research explores how Torino, a physical programming language, enables collaborative learning of computer programming by children aged 7-12 with mixed visual abilities — from full blindness to full sight. Torino uses tangible "instruction beads" (play,…

  visual impairment · children · collaborative learning · tangible interface · computational thinking

• FluxMarker: Enhancing Tactile Graphics with Dynamic Tactile Markers

  Ryo Suzuki, Abigale Stangl, Mark D. Gross, Tom Yeh · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper presents FluxMarker, an inexpensive and scalable system that adds dynamic, movable tactile markers on top of static raised-line tactile graphics. Traditional embossed tactile graphics are static and cannot represent changing data, while existing refreshable braille…

  tactile graphics · visual impairment · blindness · data physicalization · haptic technology

• Tangibles + Programming + Audio Stories = Fun

  Varsha Koushik, Shaun K. Kane · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This poster introduces Story Blocks, a tangible programming toolkit designed to make block-based programming accessible to blind and visually impaired users. Block-based programming languages like Scratch and Blockly are popular tools for teaching children to code, but they…

  programming education · blindness · visual impairment · tangible interaction · children

• 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

• Imagining Artificial Intelligence Applications with People with Visual Disabilities using Tactile Ideation

  Cecily Morrison, Edward Cutrell, Anupama Dhareshwar, Kevin Doherty, Anja Thieme, Alex Taylor · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper presents a novel tactile ideation methodology for working with people with visual disabilities to imagine future AI applications, and reports on cross-cultural workshops conducted in the UK (6 participants) and India (8 participants). Rather than asking users about…

  artificial intelligence · blindness · visual impairment · participatory design · design methodology

• Investigating Microinteractions for People with Visual Impairments and the Potential Role of On-Body Interaction

  Uran Oh, Lee Stearns, Alisha Pradhan, Jon E. Froehlich, Leah Findlater · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper investigates how well microinteractions — brief, high-frequency mobile tasks that take sighted users only a few seconds to complete — are currently supported for people who are blind or visually impaired (VI). While modern smartphones are reasonably accessible through…

  microinteraction · on-body interaction · visual impairment · wearable technology · mobile accessibility

• BrailleSketch: A Gesture-based Text Input Method for People with Visual Impairments

  Mingzhe Li, Mingming Fan, Khai N. Truong · 2017 · Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '17)

  This paper presents BrailleSketch, a gesture-based text input method for touchscreen smartphones designed for people with visual impairments who already know the Braille alphabet. Rather than requiring users to tap specific screen locations or use multi-finger chording (as with…

  text entry · braille · gesture interaction · visual impairment · mobile accessibility

• "Hands On" Visual Recognition for Visually Impaired Users

  Joan Sosa-García, Francesca Odone · 2017 · ACM Transactions on Accessible Computing

  This paper presents a collaborative visual recognition system designed to help blind or visually impaired (BVI) users identify specific product instances — distinguishing between brands, models, or types of objects that feel similar when handled. While BVI individuals can often…

  visual impairment · object recognition · computer vision · assistive technology · wearable technology

• Accessible Touchscreen Technology for People with Visual Impairments: A Survey

  William Grussenmeyer, Eelke Folmer · 2017 · ACM Transactions on Accessible Computing

  This comprehensive survey reviews the state of the art in touchscreen accessibility for people who are blind or have low vision, covering research from the mid-1990s through 2016. The authors organize the field by input modalities (gestural, voice, sensor-based) and output…

  touchscreen accessibility · mobile accessibility · visual impairment · screen readers · gestures

21 results.