Permulin: Mixed-Focus Collaboration on Multi-View Tabletops

Interactive tables are well suited for co-located collaboration. Most prior research assumed users to share the same overall display output; a key challenge was the appropriate partitioning of screen real estate, assembling the right information “at the users’ finger-tips” through simultaneous input. A different approach is followed in recent multi-view display environments: they offer personal output for each team member, yet risk to dissolve the team due to the lack of a common visual focus. Our approach combines both lines of thought, guided by the question: “What if the visible output and simultaneous input was partly shared and partly private?” We present Permulin as a concrete corresponding implementation, based on a set of novel interaction concepts that support fluid transitions between individual and group activities, coordination of group activities, and concurrent, distraction-free in-place manipulation. Study results indicate that users are able to focus on individual work on the whole surface without notable mutual interference, while at the same time establishing a strong sense of collaboration.

CHI 2014 - Video



Permulin 2.0

We are currently working on an updated version of the Permulin tabletop. It features a large 65' screen with capacitive touch. The table frame was produced by Vario office furniture and the pane of glass was provided by Schott.

At the moment, we are combining 3D printed tangible objects and augmented reality with our current version of Permulin.

Permulin covered on the rheinmaintv news



Roman Lissermann, Jochen Huber, Martin Schmitz, Jürgen Steimle, Max Mühlhäuser. Permulin: Mixed-Focus Collaboration on Multi-View Tabletops. In CHI '14. 

Roman Lissermann, Jochen Huber, Jürgen Steimle, Max Mühlhäuser. Permulin: Collaboration on Interactive Surfaces with Personal In- and Output. In CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13). ACM, New York, NY, USA, 1533-1538.

Roman Lissermann, Jochen Huber, Jürgen Steimle, Max Mühlhäuser. Permulin: Personal In- and Output on Interactive Surfaces. In CHI '13 Extended Abstracts on Human Factors in Computing Systems (CHI EA '13). ACM, New York, NY, USA, 3083-3086.


Full Paper Accepted at OzCHI 2014

We will present the following full paper at OzCHI 2014: EarPut: Augmenting Ear-worn Devices for Ear-based Interaction(Roman Lissermann, Jochen Huber, Aristotelis Hadjakos, Suranga Nanayakkara and Max Mühlhäuser) [more]

Category: Allgemeine News


Journal Article Accepted

Our journal article was accepted for the Informatik Spektrum Special Issue: Interaction Beyond the Desktop at Springer and is now available via SpringerLink. Title: Immersiver Tabletop: der digitale Tisch als Tisch Authors: M.... [more]

Category: Allgemeine News


Invited Talk by Antti Oulasvirta

Title Computational User Interface Design When & Where31.03.2014 16:00 - 17:00 in S202 / C110 Abstract Search spaces in user interface design often grow too large to be explored manually. Let us consider the case of... [more]

Category: Allgemeine News


Accepted work at CHI 2014

We will present the following work at CHI 2014 in Toronto: Permulin: Mixed-Focus Collaboration on Multi-View Tabletops (full paper)(R. Lissermann, J. Huber, M. Schmitz, J. Steimle, M. Mühlhäuser)  Exploiting Thermal... [more]

Category: Allgemeine News


Cisco's the network featuring EarOut

Cisco's technology news site "the network" featured EarPut in an article about body-based interfaces. [more]


ITS'13 Contributions

We will present two full papers (ObjecTop and coMAP) and one poster (PeriTop) this year at the ACM Interactive Tabletops and Surfaces 2013 Conference ITS'2013 in St. Andrews: ObjecTop: Occlusion... [more]


NNgroup featuring EarPut

NNgroup featured our EarPut project in an article on body-based interaction (link) [more]

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