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• 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

• Tapulator: A Non-Visual Calculator Using Natural Prefix-Free Codes

  Vaspol Ruamviboonsuk, Shiri Azenkot, Richard E. Ladner · 2012 · Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS 2012)

  This demonstration paper presents the Tapulator, a non-visual calculator for smartphones that replaces traditional on-screen buttons with a simple gesture-based numeric entry system using multi-finger taps and swipes. The core innovation is a natural prefix-free code for…

  blindness · low vision · touchscreen accessibility · screen reader · gesture input

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