Number of co-authors:9
Number of publications with 3 favourite co-authors:Sebastian Boring:3Andreas Butz:2Fabian Hennecke:2
Raphael Wimmer's 3 most productive colleagues in number of publications:Albrecht Schmidt:106Patrick Baudisch:57Andreas Butz:48
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Publications by Raphael Wimmer (bibliography)
Hennecke, Fabian, Wimmer, Raphael, Vodicka, Eduard and Butz, Andreas (2012): Vertibles: using vacuum self-adhesion to create a tangible user interface for arbitrary interactive surfaces. In: Proceedings of the 6th International Conference on Tangible and Embedded Interaction 2012. pp. 303-306.
We present Vertibles, a set of Tangible User Interface (TUI) objects employing a vacuum-based adhesion effect. This effect allows attaching them to arbitrarily inclined surfaces, bringing the benefit of TUIs to vertical interactive surfaces. In contrast to other vertically attachable TUIs, Vertibles stick to a wide range of surface materials and work with optical as well as electric object tracking techniques for interactive surfaces. We present an overview of approaches for sticking objects onto vertical surfaces, describe the technical principle and properties of our solution, and document implementation details of a number of Vertibles prototypes.
© All rights reserved Hennecke et al. and/or ACM Press
Wimmer, Raphael and Baudisch, Patrick (2011): Modular and deformable touch-sensitive surfaces based on time domain reflectometry. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 517-526.
Time domain reflectometry, a technique originally used in diagnosing cable faults, can also locate where a cable is being touched. In this paper, we explore how to extend time domain reflectometry in order to touch-enable thin, modular, and deformable surfaces and devices. We demonstrate how to use this approach to make smart clothing and to rapid prototype touch-sensitive objects of arbitrary shape. To accomplish this, we extend time domain reflectometry in three ways: (1) Thin: We demonstrate how to run time domain reflectometry on a single wire. This allows us to touch-enable thin metal objects, such as guitar strings. (2) Modularity: We present a two-pin connector system that allows users to daisy chain touch-sensitive segments. We illustrate these enhancements with 13 prototypes and a series of performance measurements. (3) Deformability: We create deformable touch devices by mounting stretch-able wire patterns onto elastic tape and meshes. We present selected performance measurements.
© All rights reserved Wimmer and Baudisch and/or ACM Press
Wimmer, Raphael, Hennecke, Fabian, Schulz, Florian, Boring, Sebastian, Butz, Andreas and Hu▀mann, Heinrich (2010): Curve: revisiting the digital desk. In: Proceedings of the Sixth Nordic Conference on Human-Computer Interaction 2010. pp. 561-570.
Current desktop workspace environments consist of a vertical area (e.g., a screen with a virtual desktop) and a horizontal area (e.g., the physical desk). Daily working activities benefit from different intrinsic properties of both of these areas. However, both areas are distinct from each other, making data exchange between them cumbersome. Therefore, we present Curve, a novel interactive desktop environment, which combines advantages of vertical and horizontal working areas using a continuous curved connection. This connection offers new ways of direct multi-touch interaction and new ways of information visualization. We describe our basic design, the ergonomic adaptations we made, and discuss technical challenges we met and expect to meet while building and configuring the system.
© All rights reserved Wimmer et al. and/or their publisher
Wimmer, Raphael and Boring, Sebastian (2009): HandSense: discriminating different ways of grasping and holding a tangible user interface. In: Villar, Nicolas, Izadi, Shahram, Fraser, Mike and Benford, Steve (eds.) TEI 2009 - Proceedings of the 3rd International Conference on Tangible and Embedded Interaction February 16-18, 2009, Cambridge, UK. pp. 359-362.
Wimmer, Raphael (2009): FlyEye: grasp-sensitive surfaces using optical fiber. In: Proceedings of the 4th International Conference on Tangible and Embedded Interaction 2009. pp. 245-248.
This paper presents a method for prototyping grasp-sensitive surfaces using optical fibers. In this system one end of a fiber bundle is attached to an image sensor. The other ends of the individual fibers are attached to distinct points of a surface. Thus the image sensor can detect changes in light reception caused by a hand covering the surface. By emitting infrared light through the surface and measuring the amount of reflected light the system can also recognize touch and proximity. Mapping between pixels on the image sensor and fiber positions on the surface is generated by a relative calibration method. This setup allows to quickly build grasp-sensitive objects without electronics skills.
© All rights reserved Wimmer and/or his/her publisher
Wimmer, Raphael, Kranz, Matthias, Boring, Sebastian and Schmidt, Albrecht (2007): A Capacitive Sensing Toolkit for Pervasive Activity Detection and Recognition. In: PerCom 2007 - Fifth Annual IEEE International Conference on Pervasive Computing and Communications 19-23 March, 2007, White Plains, New York, USA. pp. 171-180.
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