Dr. Hans Gellersen, Professor of Interactive Systems, Lancaster University
How we may use our eyes for human-computer interaction
Eye gaze is central to most of our interactions. We use our eyes to see and guide our actions and they are a natural interface that is reflective of our goals and interests. At the same time, our eyes afford fast and accurate control for directing our attention, selecting targets for interaction, and expressing intent. Even though gaze play such a central part to interaction, we rarely think about the movement of our eyes and have limited awareness of the diverse ways in which we use our eyes --- for instance, to examine visual scenes, follow movement, guide our hands, communicate non-verbally, and establish shared attention. The HCI field has considered eye gaze mostly as a pointing alternative for accessibility, albeit marred by problems of Midas Touch and limited accuracy. I will discuss new work that explores wider design opportunities for gaze-supported interaction. This includes work on: gaze integrated with multi-touch, where we leverage eye-hand coordination; spontaneous gaze interaction, where we exploit the natural coupling of gaze with moving objects; and gaze in virtual reality, where we design novel techniques based on the synergetic movement of head and eyes.
Hans Gellersen is Professor of Interactive Systems at Lancaster University. Hans' research interest is in sensors and devices for ubiquitous computing and human-computer interaction. He has worked on systems that blend physical and digital interaction, methods that infer context and human activity, and techniques that facilitate spontaneous interaction across devices. Over the last ten years, eye movement have become a main focus of his work, both as a source of context information, and as a modality for interaction.
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