• Publications
  • Influence
Slide rule: making mobile touch screens accessible to blind people using multi-touch interaction techniques
TLDR
We introduce Slide Rule, a set of audio-based multi-touch interaction techniques that enable blind users to access touch screen applications. Expand
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Freedom to roam: a study of mobile device adoption and accessibility for people with visual and motor disabilities
TLDR
We present a formative study that examines how people with visual and motor disabilities select, adapt, and use mobile devices in their daily lives. Expand
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Sharing is Caring: Assistive Technology Designs on Thingiverse
TLDR
An increasing number of online communities support the open-source sharing of designs that can be built using rapid prototyping to construct physical objects. Expand
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Ability-Based Design: Concept, Principles and Examples
TLDR
We present a refinement to these approaches called ability-based design that consists of focusing on ability throughout the design process in an effort to create systems that leverage the full range of human potential. Expand
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Usable gestures for blind people: understanding preference and performance
TLDR
We found that blind people have different gesture preferences than sighted people, including preferences for edge-based gestures and gestures that involve tapping virtual keys. Expand
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Access overlays: improving non-visual access to large touch screens for blind users
TLDR
We introduce a set of three software-based access overlays intended to improve the accessibility of large touch screen interfaces, specifically interactive tabletops. Expand
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Getting off the treadmill: evaluating walking user interfaces for mobile devices in public spaces
TLDR
Using a mobile device while moving limits attention and motor ability and can result in reduced performance. Expand
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Bonfire: a nomadic system for hybrid laptop-tabletop interaction
TLDR
We present Bonfire, a self-contained mobile computing system that uses two laptop-mounted laser micro-projectors to project an interactive display space to either side of a laptop keyboard to enable hand gesture tracking, object recognition, and information transfer within the projected space. Expand
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The AT Effect: How Disability Affects the Perceived Social Acceptability of Head-Mounted Display Use
TLDR
We surveyed 1200 individuals about the use of a head-mounted display in a public setting, examining how information about the user's disability affected judgments of the social acceptability of the scenario. Expand
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Toward Everyday Gaze Input: Accuracy and Precision of Eye Tracking and Implications for Design
TLDR
We found that accuracy and precision can vary between users and targets more than six-fold, and report on differences between lighting, trackers, and screen regions. Expand
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