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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

• 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

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