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• Designing for Individuals: Usable Touch-Screen Interaction through Shared User Models

  Kyle Montague, Vicki L. Hanson, Andy Cobley · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS)

  This paper introduces the Shared User Modelling (SUM) Framework, a system that collects touch interaction data during normal application use to build a user model that can be shared across multiple applications and devices via web services. Unlike traditional accessibility…

  touch screen accessibility · adaptive interface · user model · mobile accessibility · visual impairment

• Automated Description Generation for Indoor Floor Maps

  Devi A. Paladugu, Hima Bindu Maguluri, Qiongjie Tian, Baoxin Li · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents a prototype system that automatically generates verbal descriptions of indoor floor maps to support navigation for people with visual impairments. The system addresses a practical gap: while tools like canes, guide dogs, and GPS devices help…

  visual impairment · indoor navigation · wayfinding · image processing · floor plans

• Evaluation of Dynamic Image Pre-Compensation for Computer Users with Severe Refractive Error

  Jian Huang, Armando Barreto, Malek Adjouadi · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents a dynamic image pre-compensation method designed to improve computer accessibility for users with severe refractive errors such as high-degree myopia, hyperopia, and astigmatism. Refractive error affects over 30.5 million Americans aged 40 and older, and…

  low vision · refractive error · image enhancement · visual impairment · eye tracking

• EZ Ballot with Multimodal Inputs and Outputs

  Seunghyun Lee, Xiao Xiong, Liu Elaine Yilin, Jon Sanford · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents the EZ Ballot, a prototype accessible voting system that fundamentally reconceptualizes ballot design to provide an equal voting experience for all voters regardless of ability. Current accessible voting machines add accessibility features on…

  accessible voting · multimodal interface · cognitive accessibility · visual impairment · dexterity

• Non-Visual-Cueing-Based Sensing and Understanding of Nearby Entities in Aided Navigation

  Juan Diego Gomez, Guido Bologna, Thierry Pun · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents a context-aware navigation aid system for blind individuals that combines three levels of assistance to enhance understanding of the surrounding environment. The system addresses a fundamental challenge: blind people navigating unfamiliar…

  visual impairment · blind navigation · context-aware computing · computer vision · spatial audio

• Specialized DVD Player to Render Audio Description and Its Usability Performance

  Claude Chapdelaine · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents the CRIM DVDPlayer, a specialized software DVD player designed to enhance the audio description (AD) experience for blind and visually impaired (BVI) individuals. Developed at the Centre de Recherche Informatique de Montréal (CRIM), the player…

  audio description · visual impairment · blind users · multimedia accessibility · DVD

• FEPS: A Sensory Substitution System for the Blind to Perceive Facial Expressions

  Md. Iftekhar Tanveer, A.S.M. Iftekhar Anam, A.K.M Mahbubur Rahman, Sreya Ghosh, Mohammed Yeasin · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents FEPS (Facial Expression Perception through Sound), a visual-to-auditory sensory substitution system that enables blind individuals to perceive their conversation partner's facial expressions through sound. The inability to perceive facial…

  visual impairment · blind users · sensory substitution · sonification · facial expression recognition

• Helping Visually Impaired Users Properly Aim a Camera

  Marynel Vázquez, Aaron Steinfeld · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper evaluates three interaction modes for helping visually impaired users aim a camera to achieve good photo composition: speech-based feedback (spoken directional words like "up", "down", "left", "right" with pitch indicating proximity), tone-based feedback (a looping…

  visual impairment · blind users · low vision · photography · camera aiming

• Smartphone Application for Indoor Scene Localization

  Nabeel Younus Khan, Brendan McCane · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents a smartphone-based assistive technology that uses computer vision to determine a blind user's location inside a building where GPS is ineffective. The system operates on a client-server model running on an Android HTC Wildfire S phone. It…

  visual impairment · blind navigation · indoor localization · computer vision · smartphone

• Learning Non-Visual Graphical Information Using a Touch-Based Vibro-Audio Interface

  Nicholas A. Giudice, Hari Prasath Palani, Eric Brenner, Kevin M. Kramer · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper evaluates a vibro-audio interface on a commercial Samsung Galaxy tablet that provides non-visual access to graphical information through synchronized vibration and audio feedback triggered by touch exploration. When users trace their finger over on-screen visual…

  visual impairment · blind users · tactile graphics · haptic feedback · vibro-audio interface

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