David Lindlbauer

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direct the actions of the other. We excluded the audio channel in order to force and observe common gestural behavior. ABSTRACT In this paper we present the results of a study of human preferences in using mid-air gestures for directing other humans. Rather than contributing a specific set of gestures, we contribute a set of gesture types, which together(More)
During everyday office work we are used to controlling our computers with keyboard and mouse, while the majority of our body remains unchallenged and the physical workspace around us stays largely unattended. Addressing this untapped potential, we explore the concept of turning a flexible office chair into a ubiquitous input device. To facilitate daily(More)
We present Tracs, a dual-sided see-through display system with controllable transparency. Traditional displays are a constant visual and communication barrier, hindering fast and efficient collaboration of spatially close or facing co-workers. Transparent displays could potentially remove these barriers, but introduce new issues of personal privacy, screen(More)
Modifying a digital sketch may require multiple selections before a particular editing tool can be applied. Especially on large interactive surfaces, such interactions can be fatiguing. Accordingly, we propose a method, called Suggero, to facilitate the selection process of digital ink. Suggero identifies groups of perceptually related drawing objects.(More)
We present <i>GelTouch</i>, a gel-based layer that can selectively transition between <i>soft</i> and <i>stiff</i> to provide tactile multi-touch feedback. It is flexible, transparent when not activated, and contains no mechanical, electromagnetic, or hydraulic components, resulting in a compact form factor (a 2mm thin touchscreen layer for our prototype).(More)
A typical office worker nowadays spends the majority of his time sedentary in the course of his working life. In this paper, we address the problem of sedentariness in the context of office work through smooth integration of light physical activity into the daily work routine. Equipping a flexible office chair with motion sensing functionality, the chair(More)
While whole body interaction can enrich user experience on public displays, it remains unclear how common visualizations of user representations impact users' ability to perceive content on the display. In this work we use a head-mounted eye tracker to record visual behavior of 25 users interacting with a public display game that uses a silhouette user(More)
Office workers spend a majority of their time in front of their computer display. Therefore the display becomes a constant visual barrier and a barrier for communication. Even workers sitting across a table have to make a high effort to communicate by either standing up or walking around the table to see each other. Transparent displays have a high(More)
We propose combining shape-changing interfaces and spatial augmented reality for extending the space of appearances and interactions of actuated interfaces. While shape-changing interfaces can dynamically alter the physical appearance of objects, the integration of spatial augmented reality additionally allows for dynamically changing objects' optical(More)
Nowadays sedentary behaviors such as prolonged sitting have become a predominant element of our lives. Particularly in the office environment , many people spend the majority of their working day seated in front of a computer. In this paper, we investigate the adoption of a physically active work process within an activity-promoting office workspace design(More)