GazeTalk is a predictive text-entry system that has a restricted on-screen keyboard with ambiguous layout for severely disabled people. The main reason for using such a keyboard layout is that it enables the use of gaze tracking systems with a low spatial resolution (e.g., a web-camera based gaze tracker).

The goal of the GazeTalk project is to develop a gaze-based AAC system that supports several languages, facilitates fast text entry, and is both sufficiently feature-complete to be deployed as the primary AAC tool for users, yet sufficiently flexible and technically advanced to be used for research purposes. The system is designed for several target languages, initially Danish, English, Italian, German and Japanese.

Main features

• type-to-talk
• writing
• email
• web browser
• Music and video players
• PDF reader
• letter and word prediction, and word completion
• speech output
• can be operated by gaze, head tracking, mouse, joystick, or any other pointing device
• supports step-scanning
• supports users with low precision in their movements, or trackers with low accuracy
• allows the user to use Dasher inside GazeTalk and to transfer the text written in Dasher back to GazeTalk

GazeTalk 5.2 has been designed and developed by the gazegroup.org (formally known as Eye Gaze Interaction Group) at the IT University of Copenhagen and the IT-Lab at the Royal School of Library and Information Science, Copenhagen.

Screenshots

GazeTalk Videos

• Introduction to GazeTalk and its features
• Watch a YouTube video on Gaze Interaction for People with ALS/MND
• Watch another YouTube video on a Talk Given with the Eyes Only by Arne Lykke Larsen
• Watch a YouTube video on ALS-Communication and GazeTalk, where the developer, Dr. John Paulin Hansen explains how GazeTalk works (in Danish, subtitles in English). The video includes short clips of using GazeTalk and a brief interview of John Paulin Hansen. The video was produced by www.synvision.dk, intiative: Birger Bergmann Jeppesen (bigerbj (at) webspeed (dot) dk), for more information, see www.als-communication.dk)

GazeTalk is also available in the following languages:

• Danish
• Italian
• German
• Japanese
• Chinese

For further information about GazeTalk and downloads please visit and contribute to cogain.org.