1,243 research outputs found
Designing Multimodal Mobile interaction for a Text Messaging application for Visually impaired Users
While mobile devices have experienced important accessibility advances in the past years, people with visual impairments still face important barriers, especially in specific contexts when both their hands are not free to hold the mobile device, like when walking outside. By resorting to a multimodal combination of body based gestures and voice, we aim to achieve full hands and vision free interaction with mobile devices. In this article, we describe this vision and present the design of a prototype, inspired by that vision, of a text messaging application. The article also presents a user study where the suitability of the proposed approach was assessed, and a performance comparison between our prototype and existing SMS applications was conducted. Study participants received positively the prototype, which also supported better performance in tasks that involved text editing
OpenAdaptxt: an open source enabling technology for high quality text entry
Modern text entry systems, especially for touch screen phones and novel devices, rely on complex underlying technologies such as error correction and word suggestion. Furthermore, for global deployment a vast number of languages have to be supported. Together this has raised the entry bar for new text entry techniques, which makes developing and testing a longer process thus stifling innovation. For example, testing a new feedback mechanism in comparison to a stock keyboard now requires the researchers to support at least slip correction and probably word suggestion. This paper introduces OpenAdaptxt: an open source community driven text input platform to enable development of higher quality text input solutions. It is the first commercial-grade open source enabling technology for modern text entry that supports both multiple platforms and dictionary support for over 50 spoken languages
A survey of assistive technologies and applications for blind users on mobile platforms: a review and foundation for research
This paper summarizes recent developments in audio and tactile
feedback based assistive technologies targeting the blind
community. Current technology allows applications to be
efficiently distributed and run on mobile and handheld
devices, even in cases where computational requirements are
significant. As a result, electronic travel aids, navigational
assistance modules, text-to-speech applications, as well as
virtual audio displays which combine audio with haptic
channels are becoming integrated into standard mobile devices.
This trend, combined with the appearance of increasingly user-
friendly interfaces and modes of interaction has opened a
variety of new perspectives for the rehabilitation and
training of users with visual impairments. The goal of this
paper is to provide an overview of these developments based on
recent advances in basic research and application development.
Using this overview as a foundation, an agenda is outlined for
future research in mobile interaction design with respect to
users with special needs, as well as ultimately in relation to
sensor-bridging applications in genera
Multimodal access to social media services
Tese de mestrado integrado. Engenharia Informática e Computação. Faculdade de Engenharia. Universidade do Porto, Microsoft Language Development Center. 201
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