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• Enhancing Caption Accessibility through Simultaneous Multimodal Information: Visual-Tactile Captions

  Raja S. Kushalnagar, Gary W. Behm, Joseph S. Stanislow, Vasu Gupta · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS)

  This paper addresses a fundamental limitation of captions (subtitles) for deaf and hard of hearing (DHH) viewers: captions force viewers to split attention between reading text at the bottom of the screen and watching the visual action, inevitably causing them to miss…

  captioning · deaf and hard of hearing · haptic feedback · multimodal interaction · non-speech information

• An Immersive Physical Therapy Game for Stroke Survivors

  Conor Kaminer, Kevin LeBras, Jordan McCall, Tan Phan, Paul Naud, Mircea Teodorescu, Sri Kurniawan · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS)

  This demo paper presents an immersive 3D game system designed to gamify physical therapy exercises for stroke survivors, enabling home-based rehabilitation that is both more engaging and capable of recording therapy progress. Stroke is identified as the number one cause of adult…

  stroke recovery · virtual reality · game accessibility · rehabilitation · physical therapy

• The Blind Driver Challenge: Steering Using Haptic Cues

  Burkay Sucu, Eelke Folmer · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS)

  This paper presents a haptic steering interface that enables blind individuals to steer a vehicle on a track using vibrotactile cues, addressing the National Federation of the Blind's 2004 "Blind Driver Challenge." While self-driving vehicles could transform mobility for blind…

  blindness · haptic feedback · mobility · autonomous vehicles · driving

• Designing a Text Entry Multimodal Keypad for Blind Users of Touchscreen Mobile Phones

  Maria Claudia Buzzi, Marina Buzzi, Barbara Leporini, Amaury Trujillo · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS)

  This paper presents MTITK (Multimodal Text Input Touchscreen Keypad), a software-only text entry system for blind users of touchscreen phones that combines the familiar 12-key telephone keypad layout with multimodal audio-tactile feedback. The work is grounded in the personal…

  mobile accessibility · text entry · blindness · multimodal interaction · haptic feedback

• BraillePlay: Educational Smartphone Games for Blind Children

  Lauren R. Milne, Cynthia L. Bennett, Richard E. Ladner, Shiri Azenkot · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS 2014)

  This paper presents BraillePlay, a suite of four educational smartphone games designed to teach Braille character encodings to blind children aged 5 and older. The games are built on VBraille, a method for displaying Braille characters on a touchscreen where the phone vibrates…

  blindness · Braille literacy · educational games · children · mobile accessibility

• Evaluation of Non-Visual Panning Operations Using Touch-Screen Devices

  HariPrasath Palani, Nicholas A. Giudice · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS 2014)

  This demonstration paper addresses a critical challenge in non-visual access to graphical information on touchscreens: how to pan across large-format graphics (maps, floor plans) without losing spatial orientation. The authors built on their Vibro-Audio Interface (VAI), which…

  visual impairment · tactile graphics · haptic feedback · touchscreen accessibility · non-visual maps

• M.I.D.A.S. Touch: Magnetic Interactive Device for Alternative Sight through Touch

  Taylan K. Sen, Morgan W. Sinko, Alex T. Wilson, Mohammed E. Hoque · 2014 · Proceedings of the 16th International ACM SIGACCESS Conference on Computers & Accessibility (ASSETS 2014)

  This demonstration paper presents MIDAS Touch (Magnetic Interactive Device for Alternative Sight through Touch), a novel free-space haptic interface that allows visually impaired users to feel and create digital drawings without physical contact with a surface. The system uses a…

  visual impairment · haptic feedback · free-space haptics · drawing · magnetic interface

• A Mobile Interactive Maps Application for a Visually Impaired Audience

  Nikolaos Kaklanis, Konstantinos Votis, Dimitrios Tzovaras · 2013 · Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A)

  This demo paper presents "Open Touch/Sound Maps," an Android mobile application that makes interactive maps accessible to visually impaired and blind users through multimodal feedback. Web-based spatial information resources like OpenStreetMap are inherently visual, leaving…

  visual impairment · accessible maps · sonification · haptic feedback · mobile accessibility

• VBGhost: A Braille-Based Educational Smartphone Game for Children

  Lauren R. Milne, Cynthia L. Bennett, Richard E. Ladner · 2013 · Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '13)

  This short paper presents VBGhost, an accessible educational smartphone game for blind and low vision children that reinforces Braille literacy through gameplay. The game is based on Ghost, a word-building game where players take turns adding letters to a growing word fragment…

  braille · mobile accessibility · game accessibility · blind children · education

• UbiBraille: Designing and Evaluating a Vibrotactile Braille-Reading Device

  Hugo Nicolau, João Guerreiro, Tiago Guerreiro, Luís Carriço · 2013 · Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '13)

  This paper presents UbiBraille, a wearable vibrotactile device that enables blind users to read textual information privately and inconspicuously by leveraging their existing knowledge of Braille. The device consists of six small vibration motors attached to adjustable aluminum…

  braille · vibrotactile · wearable technology · blind users · haptic feedback

• PlatMult: A Multisensory Platform with Web Accessibility Features for Low Vision Users

  Marcio Oyamada, Jorge Bidarra, Clodis Boscarioli · 2013 · Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS)

  This poster paper presents PlatMult, an integrated hardware and software platform that combines three sensory modalities — visual, auditory, and tactile — to improve web accessibility for low vision users. The authors note that screen magnifiers, the most common assistive…

  low vision · screen magnifier · screen reader · haptic feedback · multisensory

• Towards the Development of Haptic-Based Interface for Teaching Visually Impaired Arabic Handwriting

  Abeer S. Bayousuf, Hend S. Al-Khalifa, AbdulMalik S. Al-Salman · 2013 · Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS)

  This poster paper introduces an initial haptic-based system for teaching Arabic letter handwriting to students with visual impairments. Handwriting requires coordination of vision and hand movement, making it particularly challenging for visually impaired students who cannot see…

  visual impairment · haptic feedback · handwriting · Arabic · education

• A Haptic ATM Interface to Assist Visually Impaired Users

  Brendan Cassidy, Gilbert Cockton, Lynne Coventry · 2013 · Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS)

  This paper presents the design and evaluation of a haptic interface for ATM keypads that conveys directional information to visually impaired users without relying on audio or visual output. Current ATM accessibility primarily uses audio lead-through via headphones, which has…

  visual impairment · haptic feedback · ATM accessibility · vibro-tactile · deafblind

• 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

• 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

• Exploration and Avoidance of Surrounding Obstacles for the Visually Impaired

  Limin Zeng, Denise Prescher, Gerhard Weber · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This paper presents the 3DOD (3D Obstacle Detector), a wearable system that combines a 3D Time-of-Flight (TOF) camera with a portable multi-line refreshable Braille display to help blind pedestrians detect and avoid obstacles beyond the reach of a white cane. White canes detect…

  blindness · obstacle detection · electronic travel aid · haptic feedback · tactile display

• Evaluation of Haptic HTML Mappings Derived from a Novel Methodology

  Ravi Kuber, Wai Yu, Sile O'Modhrain · 2011 · ACM Transactions on Accessible Computing

  This paper presents a comprehensive evaluation of haptic HTML mappings designed to help blind users navigate web pages using a Logitech Wingman force-feedback mouse. The research builds on a novel five-step participatory design methodology that actively involved blind users in…

  haptic feedback · force-feedback · blind users · web accessibility · assistive technology

• Supporting Blind Photography

  Chandrika Jayant, Hanjie Ji, Samuel White, Jeffrey P. Bigham · 2011 · ASSETS '11: The Proceedings of the 13th International ACM SIGACCESS Conference on Computers and Accessibility

  This paper explores how blind and low-vision people use cameras and presents two applications designed to make photography more accessible. The research begins with a large-scale online survey of 118 blind and low-vision people that establishes the empirical foundation for the…

  blind users · low vision · photography · computer vision · mobile accessibility

• Multimodal Presentation of Two-Dimensional Charts: An Investigation Using Open Office XML and Microsoft Excel

  Iyad Abu Doush, Enrico Pontelli, Tran Cao Son, Dominic Simon, Ou Ma · 2010 · ACM Transactions on Accessible Computing

  This paper presents a comprehensive system for making Microsoft Excel charts accessible to people who are blind or visually impaired through multimodal haptic and audio feedback. The system extracts chart data from the OOXML format introduced in Excel 2007, then presents it…

  haptic feedback · data visualization · screen readers · multimodal interaction · force feedback

• Orienting Kinesthetically: A Haptic Handheld Wayfinder for People with Visual Impairments

  Tomohiro Amemiya, Hisashi Sugiyama · 2010 · ACM Transactions on Accessible Computing

  This paper presents a novel haptic direction indicator that provides real-time navigational guidance through kinesthetic cues rather than audio or vibrotactile feedback. The device exploits a perceptual phenomenon called the "pseudo-attraction force technique": by generating…

  haptic feedback · wayfinding · navigation · orientation and mobility · blindness

• Rock Vibe: Rock Band® Computer Games for People with No or Limited Vision

  Troy Allman, Rupinder K. Dhillon, Molly A.E. Landau, Sri H. Kurniawan · 2009 · Proceedings of the 11th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '09)

  This paper presents Rock Vibe, a modification of the commercial Rock Band® video game that replaces visual cues with haptic vibrations and audio feedback to enable people with no or limited vision to play the drumming component. The system uses an Arduino microcontroller to…

  game accessibility · visual impairment · blindness · haptic feedback · sensory substitution

• Blind Hero: Enabling Guitar Hero for the Visually Impaired

  Bei Yuan, Eelke Folmer · 2008 · Proceedings of the 10th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '08)

  This paper from the University of Nevada, Reno presents Blind Hero, a modification of the popular video game Guitar Hero that replaces visual stimuli with haptic feedback to enable visually impaired players to participate. The system uses a custom haptic glove with small pager…

  game accessibility · haptic feedback · visual impairment · sensory substitution · rhythm game

• Designing Auditory Displays to Facilitate Object Localization in Virtual Haptic 3D Environments

  Koen Crommentuijn, Fredrik Winberg · 2006 · Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility (Assets '06)

  This paper investigates five different auditory display designs to help blind users locate objects in a virtual haptic 3D environment explored with a PHANToM Desktop haptic device. While haptic devices give visually impaired users the ability to explore virtual 3D spaces by…

  auditory display · sonification · haptic feedback · virtual environment · blindness

• Strategic Design for Users with Diabetic Retinopathy: Factors Influencing Performance in a Menu-Selection Task

  Paula J. Edwards, Leon Barnard, V. Kathlene Emery, Ji Soo Yi, Kevin P. Moloney, Thitima Kongnakorn, Julie A. Jacko, François Sainfort, Pamela R. Oliver, Joseph Pizzimenti, Annette Bade, Greg Fecho, Josephine Shallo-Hoffmann · 2004 · Proceedings of the 6th International ACM SIGACCESS Conference on Computers and Accessibility (Assets 04)

  This paper examines how interface design features affect menu selection performance for users with Diabetic Retinopathy (DR), a progressive eye condition affecting 40-45% of the approximately 18 million Americans with diabetes. The study involved 25 volunteers from Nova…

  diabetic retinopathy · low vision · visual impairment · multimodal feedback · menu design

• Multimodal Feedback: Establishing a Performance Baseline for Improved Access by Individuals with Visual Impairments

  Holly S. Vitense, Julie A. Jacko, V. Kathlene Emery · 2002 · Proceedings of the Fifth International ACM Conference on Assistive Technologies (Assets 02)

  This study investigates how different combinations of auditory, haptic, and visual feedback affect the performance of fully sighted users during a complex direct manipulation task. The researchers designed the study as a baseline from which to later compare the performance of…

  multimodal interaction · haptic feedback · auditory feedback · visual impairment · workload measurement