Browsing by Author "Li, Jiannan"

Now showing 1 - 4 of 4
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    Designing the Car iWindow: Exploring Interaction through Vehicle Side Windows
    (2013-01-24) Li, Jiannan; Sharlin, Ehud; Greenberg, Saul; Rounding, Mike
    Interactive vehicle windows can enrich the commuting experience by being informative and engaging, strengthening the connection between passengers and the outside world. We propose a preliminary interaction paradigm to allow rich and un-distracting interaction experience on vehicle side windows. Following this paradigm we present a prototype, the Car iWindow, and discuss our preliminary design critique of the interaction, based on the installation of the iWindow in a car and interaction with it while commuting around our campus.
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    Enhancing Workspace Awareness on Collaborative Transparent Displays
    (2014-10-17) Li, Jiannan; Greenberg, Saul; Sharlin, Ehud
    Transparent displays can be used to support collaboration, where collaborators work on either side while simultaneously seeing what the other person is doing. This naturally supports workspace awareness: the up-to-the-moment understanding of another person’s interaction with a shared workspace. The problem is that the transparency of such displays can change dynamically during a collaborative session, where it can degrade as a function of the density and brightness of the displayed graphics and changes in lighting. This compromises workspace awareness. Our solution is to track and graphically enhance a person’s touch and gestural actions to make the feedthrough of those actions more visible on the other side. We had subjects perform three tasks over degrading transparency conditions, where augmentation techniques that enhance actions were either present or absent. Our analysis confirms that people’s awareness is reduced as display transparency is compromised, and verifies that augmentation techniques can mitigate this awareness loss.
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    Interactive Two-Sided Transparent Displays: Designing for Collaboration
    (2014-01-24) Li, Jiannan; Greenberg, Saul; Sharlin, Ehud; Jorge, Joaquim
    Transparent displays can serve as an important collaborative medium supporting face-to-face interactions over a shared visual work surface. Such displays enhance workspace awareness: when a person is working on one side of a transparent display, the person on the other side can see the other’s body, hand gestures, gaze and what he or she is actually manipulating on the shared screen. Even so, we argue that designing such transparent displays must go beyond current offerings if it is to support collaboration. First, both sides of the display must accept interactive input, preferably by at least touch and / or pen, as that affords the ability for either person to directly interact with the workspace items. Second, and more controversially, both sides of the display must be able to present different content, albeit selectively. Third (and related to the second point), because screen contents and lighting can partially obscure what can be seen through the surface, the display should visually enhance the actions of the person on the other side to better support workspace awareness. We describe a prototype system we built to satisfy these requirements called FACINGBOARD-2, where we concentrate on how its design supports these three collaborative requirements.
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    Two-Sided Transparent Display as a Collaborative Medium
    (2015-01-28) Li, Jiannan; Sharlin, Ehud; Greenberg, Saul
    Transparent displays are ‘see-through’ screens: a person can simultaneously view both the graphics on the screen and real-world content visible through the screen. Interactive transparent displays can serve as an important medium supporting face-to-face collaboration, where people interact with both sides of the display and work together. Such displays enhance workspace awareness, which smooths collaboration: when a person is working on one side of a transparent display, the person on the other side can see the other's hand gestures, gaze, and what s/he is currently manipulating on the shared screen. Even so, we argue that in order to provide effective support for collaboration, designing such transparent displays must go beyond current offerings. We propose using two-sided transparent displays, which can present different content on both sides. The displays should also accept interactive input on both sides and visually augment users’ actions when display transparency is reduced. We operationalized these design requirements with our two-sided transparent display prototype, FACINGBOARD-II, and devised a palette of supportive interaction techniques. Through empirical studies, we found that the workspace awareness provided by transparent displays is compromised with degrading display transparency, and that visually enhancing user actions can compensate for this awareness loss.