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• 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

• Web Accessibility as a Side Effect

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

  This paper investigates the conjecture that improvements in web accessibility have arisen partly as unintentional side effects of changes in web technology and design practices, rather than from deliberate accessibility efforts. Building on a prior 14-year longitudinal study…

  web accessibility · WCAG · CSS · semantic markup · search engine optimization

• How Do Professionals Who Create Computing Technologies Consider Accessibility?

  Cynthia Putnam, Kathryn Wozniak, Mary Jo Zefeldt, Jinghui Cheng, Morgan Caputo, Carl Duffield · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents survey findings about how UX and HCI professionals consider accessibility in their work, based on responses from 199 participants representing a wide range of job titles and nationalities (recruited via IxDA, SIGCHI, and UPA channels). The survey combined a…

  inclusive design · accessibility education · UX professionals · HCI · organizational accessibility

• 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

• "So That's What You See": Building Understanding with Personalized Simulations of Colour Vision Deficiency

  David R. Flatla, Carl Gutwin · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents a personalized colour vision deficiency (CVD) simulation method that shows people with normal colour vision what a specific individual with CVD actually sees, rather than relying on generic models. Existing simulation tools like Vischeck have three key…

  colour vision deficiency · color blindness · simulation · personalization · anomalous trichromacy

• Accessible Web Automation Interface: A User Study

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

  This doctoral consortium paper presents the evaluation of two web automation user interfaces designed to help blind and low-vision screen reader users complete web browsing tasks more efficiently. The fundamental problem is that while the web has become essential for daily tasks…

  web accessibility · web automation · screen readers · blind users · low vision

• PassChords: Secure Multi-Touch Authentication for Blind People

  Shiri Azenkot, Kyle Rector, Richard Ladner, Jacob Wobbrock · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents PassChords, a non-visual multi-touch authentication method for blind mobile device users that is resistant to both aural and visual eavesdropping. The research begins with interviews of 13 blind smartphone users (average age 51, range 26-64) that revealed…

  accessible authentication · blind users · mobile security · touch screen · VoiceOver

• Capture: A Desktop Display-Centric Text Recorder

  Oren Laadan, Andrew Shu, Jason Nieh · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents Capture, a display-centric text recording system that continuously tracks all onscreen text and metadata across both foreground and background windows with low overhead and without requiring modifications to applications, window systems, or operating system…

  screen reader · accessibility API · accessibility tree · text recording · desktop accessibility

• Turning Off-The-Shelf Games into Biofeedback Games

  Regan L. Mandryk, Michael Kalyn, Yichen Dang, Andre Doucette, Brett Taylor, Shane Dielschneider · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents two systems that convert existing commercial off-the-shelf games into biofeedback (BF) training games for people with cognitive impairments. Biofeedback training — particularly neurofeedback using EEG — has been shown effective for helping…

  biofeedback · neurofeedback · EEG · cognitive impairment · ADHD

• Basic Senior Personas: A Representative Design Tool Covering the Spectrum of European Older Adults

  Bernhard Wöckl, Ulcay Yildizoglu, Isabella Buber, Belinda Aparicio Diaz, Ernst Kruijff, Manfred Tscheligi · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper introduces a set of 30 "basic senior personas" representing European citizens aged 60 and older, developed using a quantitative approach based on micro-level data from approximately 12,500 individuals across 17 European countries from the SHARE (Survey of Health,…

  older adults · personas · user-centered design · ambient assisted living · activities of daily living

• Wii Remote as a Web Navigation Device for People with Cerebral Palsy

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

  This short paper evaluates the Nintendo Wii remote as an alternative web navigation device for people with cerebral palsy, compared to a standard wireless mouse. Despite the abundance of accessibility tools, customizable and inexpensive options for people with motor impairments…

  cerebral palsy · alternative input device · motor impairment · web accessibility · Wii remote

• What is Wrong with This Word? Dyseggxia: A Game for Children with Dyslexia

  Luz Rello, Clara Bayarri, Azuki Gorriz · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents Dyseggxia, a free mobile game application for iOS and Android that provides word exercises designed specifically for Spanish-speaking children with dyslexia. The game's content design is grounded in two empirical foundations: linguistic and…

  dyslexia · serious games · educational technology · Spanish language · reading accessibility

• Design and Evaluation of Classifier for Identifying Sign Language Videos in Video Sharing Sites

  Caio D.D. Monteiro, Ricardo Gutierrez-Osuna, Frank M. Shipman · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents the design and evaluation of a video classifier that automatically distinguishes sign language (SL) videos from non-sign-language videos on video sharing sites like YouTube. Currently, deaf and hard-of-hearing users must rely on tags, titles, or metadata to…

  sign language · deaf community · video classification · computer vision · machine learning

• Thematic Organization of Web Content for Distraction-Free Text-to-Speech Narration

  Muhammad Asiful Islam, Faisal Ahmed, Yevgen Borodin, I.V. Ramakrishnan · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper addresses a fundamental problem in how blind users experience web content through screen readers: the serial, linear narration of complex web pages that contain multiple thematic elements — news stories, ads, navigation taxonomies, and opinion pieces — all…

  screen readers · web segmentation · text-to-speech · blind users · cognitive load

• Detecting Hunchback Behavior in Autistic Children with Smart Phone Assistive Devices

  Shu-Hsien Lin · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This short demonstration paper presents a low-cost assistive system that uses a smartphone's built-in accelerometer to detect hunchback posture in an autistic student at the Kaohsiung Municipal Renwu Special Education School (KRSES) in Taiwan. The student frequently exhibited…

  autism · assistive technology · wearable technology · posture detection · special education

• Design Goals for a System for Enhancing AAC with Personalized Video

  Katie O'Leary, Charles Delahunt, Patricia Dowden, Ivan Darmansya, Jiaqi Heng, Eve A. Riskin, Richard E. Ladner, Jacob O. Wobbrock · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '12)

  This demonstration paper presents Vid2Speech, a prototype tablet-based augmentative and alternative communication (AAC) system designed for children with complex communication needs (CCN). The system addresses a fundamental limitation of existing AAC applications: their reliance…

  augmentative and alternative communication · complex communication needs · personalized video · action words · tablet-based AAC

• Effect of Presenting Video as a Baseline During an American Sign Language Animation User Study

  Pengfei Lu, Hernisa Kacorri · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '12)

  This paper investigates a methodological question central to sign language animation research: what type of upper baseline should be used when evaluating synthesized American Sign Language (ASL) animations? The authors laboratory at CUNY had previously conducted multiple studies…

  sign language animation · American Sign Language · user study methodology · evaluation baselines · deaf accessibility

• Face Tracking User Interfaces Using Vision-Based Consumer Devices

  Norman H. Villaroman · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '12)

  This short paper investigates the design and implementation of face tracking user interfaces built with consumer-grade vision and depth-sensing devices, specifically the Microsoft Kinect. The research addresses the needs of users who cannot effectively use traditional…

  face tracking · head tracking · assistive technology · alternative input · depth sensing

• Elderly Text-Entry Performance on Touchscreens

  Hugo Nicolau, Joaquim Jorge · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '12)

  This paper presents an empirical study of how elderly users perform text-entry tasks on touchscreen devices, examining both mobile phones and tablets. Fifteen participants aged 67 to 89 (mean 79) were asked to copy sentences on an HTC Desire smartphone and an ASUS Transformer…

  touchscreen accessibility · text entry · aging · motor accessibility · tremor

• iSCAN: A Phoneme-based Predictive Communication Aid for Nonspeaking Individuals

  Ha Trinh, Annalu Waller, Keith Vertanen, Per Ola Kristensson, Vicki L. Hanson · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents iSCAN (Interactive Sound-based Communication Aid for Non-speakers), a phoneme-based predictive communication system designed for people with severe speech impairments (SSI) who lack conventional literacy skills. The core problem is that most augmentative and…

  augmentative and alternative communication · phoneme-based communication · predictive text · word prediction · severe speech impairment

• What We Talk About: Designing a Context-Aware Communication Tool for People with Aphasia

  Shaun K. Kane, Barbara Linam-Church, Kyle Althoff, Denise McCall · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper describes the design and development of TalkAbout, a context-aware augmentative and alternative communication (AAC) application for tablet devices that adapts its vocabulary to a user's current location and conversation partner. People with aphasia — a language…

  aphasia · augmentative and alternative communication · context-aware computing · participatory design · stroke