Much recent work has explored the challenge of nonvisual text entry on mobile devices.
While researchers have attempted to solve this problem with gestures, we explore a different …

With the increasing popularity of mainstream wearable devices, it is critical to assess the
accessibility implications of such technologies. For people with visual impairments, who do …

We present the evaluation of BrailleTouch, an accessible keyboard for blind users on
touchscreen smartphones. Based on the standard Perkins Brailler, BrailleTouch implements …

We present a predictive model for the functional area of the thumb on a touchscreen surface:
the area of the interface reachable by the thumb of the hand that is holding the device. We …

The advent of system-wide accessibility services on mainstream touch-based smartphones
has been a major point of inclusion for blind and visually impaired people. Ever since …

Touchscreens have become a de facto standard of input for mobile devices as they most
optimally use the limited input and output space that is imposed by their form factor. In recent …

Blind mobile device users face security risks such as inaccessible authentication methods,
and aural and visual eavesdrop**. We interviewed 13 blind smartphone users and found …

Eyes-free input is desirable for ubiquitous computing, since interacting with mobile and
wearable devices often competes for visual attention with other devices and tasks. In this …

There are many educational smartphone games for children, but few are accessible to blind
children. We present BraillePlay, a suite of accessible games for smartphones that teach …

During the last decade, cell phones with multimodal interfaces based on combined new
media have become the dominant computer interface worldwide. Multimodal interfaces …