Prof Hans Gellersen
Professor for Interactive Systems
Contact
Room: D16
TeachingCSM 07 : Ubiquitous Computing (Masters)
Research ThemesMobile and Ubiquitous Computing
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Overview of ActivitiesMost of my research is focussed on systems that employ embedded sensing for context acquisition and for support of user interaction in ubiquitous computing. In addition, I maintain a strong interest in novel user interface technologies.
A main theme in my work has been augmentation of objects, from the Mediacup as an early exploration of embedded context sensing to Smart-Its investigating cooperative context sensing and inferencing to, most recently, work on visual overlay of smart objects with projected displays and interfaces. In other work on context sensing, pursued in European project I have been leading since 2004, I am focussing on relative positioning on the basis of peer-to-peer sensing. I also have an interest in sensing and recognition of human activity, with a new focus on sensing eye movement as activity indicator. One of the drivers for investigation of novel sensing mechanisms in my research is to support spontaneous interactions of mobile users with devices encountered in their environment. I pursue this not as a network service discovery challenge, but with focus on how sensing can help users physically discover, identify and authenticate interaction opportunities in their environment. I specifically work on spatial interfaces that build on relative positioning, and on methods for peer device authentication. A recent contribution has been a method for secure pairing of mobile devices by shaking - winning a best paper award at Pervasive 2007, featured in the New Scientist, and viewed over 30,000 times on YouTube. Sensor-based interfaces aside, I am generally interested in novel user interfaces inspired by ubiquitous computing technologies and concepts. This has included work on the Pin&Play and VoodooIO systems for provision of physical user interfaces that are highly flexible, realised as ad hoc network of controls; in this system, exhibited as Emerging Technology at SIGGRAPH in 2006, controls that can be arranged dynamically on a substrate material that functions simulatenously as physical interface canvas and power and data bus. ProfileI have been active in the ubiquitous computing research community for over 10 years, initially as director of the TecO research group at the University of Karlsruhe, and since 2001 in my current position. In 1999, I initiated the Handheld und Ubiquitous Computing conference, which has since been shortened to "Ubicomp" and become established as the premier conference in the field. Further professional service include program co-chair of Pervasive 2005, ECSCW 2005 and AmI-07; general co-chair of TEI 2008; editor of Springer/ACM Personal and Ubiquitous Computing; and editorial board of IEEE Pervasive Computing.
In 2007, I chaired an international evaluation of Computer Science in Finland 2001-2006. Selected PublicationsMolyenaux, D., Gellersen, H., Kortuem, G. and Schiele, B. (2007) Cooperative Augmentation of Smart Objects with Projector-Camera Systems. Proc. Int. Conf. on Ubiquitous Computing (Ubicomp '07), Springer LNCS, pp. 501-518. Acceptance rate 19%. Mayrhofer, R. and Gellersen, H. Shake well before use: Authentication based on Accelerometer Data. Proceedings of Intl. Conf. on Pervasive Computing (Pervasive 2007), Toronto, Canada, May 2007. BEST PAPER AWARD. Acceptance rate 15%. Villar, N., Gilleade, K., Ramduny-Ellis, D. and Gellersen, H. (2006) VoodooIO Gaming Kit: A real-time adaptable gaming controller. Proc. of ACM Intl. Conf. on Advances in Computer Entertainment Technology (ACE 2006), ACM Press, pp. 1-10. BEST PAPER AWARD. Acceptance rate 12%.<\p> Kortuem, G., Kray, C. and Gellersen, H. (2005) Sensing and visualizing spatial relations of mobile devices. Proc. ACM Symposium on User Interface Software and Technology (UIST 2005), Seattle, Washington, USA, 2005. Acceptance rate 19%. Hazas, M., Kray, C., Gellersen, H., Agbota, H., Kortuem, G. and Krohn, A. (2005) A Relative Positioning System for Co-Located Mobile Devices. Proceedings of ACM MobiSys 2005: Third International Conference on Mobile Systems, Applications, and Services, Seattle, USA, June 2005, p. 177–190. Acceptance rate 21%. Gellersen, H., Kortuem, G., Beigl., M. and Schmidt, A. Physical prototyping with Smart-Its. IEEE Pervasive Computing 3(3), July 2004, pp. 74-82. Gellersen, H., Schmidt, A. and Beigl, M. Multi-Sensor Context-Awareness in Mobile Devices and Smart Artifacts. ACM Mobile Networks and Applications (MONET), 7(5), Oct. 2002, pp. 341-351. Van Laerhoven, K., Schmidt, A. and Gellersen, H. (2002) Pin&Play: Networking Objects through Pins. In Proceedings of Ubicomp 2002, LNCS 2498, Springer Verlag, pp.219 - 229. Acceptance rate 18%. Beigl, M., Gellersen H. and Schmidt, A (2001). Mediacups: Experience with Design and Use of Computer-Augmented Everyday Artefacts, Computer Networks 35(4): 401-409. |
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