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A Capacitive Sensing Toolkit for Pervasive Activity Detection and Recognition
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Raphael Wimmer, Matthias Kranz, Sebastian Boring, Albrecht Schmidt
Issue Date:March 2007
pp. 171-180
In this paper we present a toolkit for realizing capacitive sensing applications for human-computer interaction in pervasive computing systems. We argue that capacitive sensors - due to their unique properties - are well suited for many pervasive and ubiqu...
 
Designing Ubiquitous Computing Systems for Sports Equipment
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Matthias Kranz, Wolfgang Spiessl, Albrecht Schmidt
Issue Date:March 2007
pp. 79-86
In this paper, we report on a user-centered, iterative design process for augmenting sports equipment with ubiquitous computing technology. In several design iterations, a fully working system for training and physiotherapy has been developed and deployed ...
 
Restriction, Modification and Extension of Consumer Devices for Prototyping Ubiquitous Computing Environments
Found in: Distributed Computing Systems Workshops, International Conference on
By Matthias Kranz, Albrecht Schmidt
Issue Date:July 2006
pp. 57
In this paper, we report on several work-in-progress projects of our research group and other systems that exploit commercially available off-the-shelf components for deriving research prototypes and systems in the field of ubiquitous computing. We discuss...
 
Developing Gestural Input
Found in: Distributed Computing Systems Workshops, International Conference on
By Matthias Kranz, Stefan Freund, Paul Holleis, Albrecht Schmidt, Holger Arndt
Issue Date:July 2006
pp. 63
<p>In this paper, we present the Gesture Cube, a digitally augmented cube for human-computer interaction. The Gesture Cube is designed to be an unobtrusive and playful interaction device for controlling media appliances. In an explorative user study,...
 
Thracker - Using Capacitive Sensing for Gesture Recognition
Found in: Distributed Computing Systems Workshops, International Conference on
By Raphael Wimmer, Paul Holleis, Matthias Kranz, Albrecht Schmidt
Issue Date:July 2006
pp. 64
In this paper we present Thracker - a low-cost and robust hardware to track hand gestures in front of a screen or small-scale active spaces like public displays or posters. Thracker uses capacitive sensing for tracking user input. Thracker allows for entir...
 
DistScroll — A New One-Handed Interaction Device
Found in: Distributed Computing Systems Workshops, International Conference on
By Matthias Kranz, Paul Holleis, Albrecht Schmidt
Issue Date:June 2005
pp. 499-505
We present an interaction device for navigating data structures or browsing menus using only one hand. It is especially designed for situations in which the user wears gloves that renders direct input too difficult or applications in which it is impossible...
 
Adding Context Information to Digital Photos
Found in: Distributed Computing Systems Workshops, International Conference on
By Paul Holleis, Matthias Kranz, Marion Gall, Albrecht Schmidt
Issue Date:June 2005
pp. 536-542
In a user centered design process, we investigate what context information may be used to augment digital photos with additional meta information. We describe our initial findings from user interviews and present the design and implementation of a prototyp...
 
Developing Intelligent Environments: A Development Tool Chain for Creation, Testing and Simulation of Smart and Intelligent Environments
Found in: Intelligent Environments, International Conference on
By Luis Roalter,Andreas Möller,Stefan Diewald,Matthias Kranz
Issue Date:July 2011
pp. 214-221
Advances in the fields of distributed computing, wireless sensor networks, ubiquitous computing and many more have facilitated the development of a plenitude of Intelligent Environments (IE). The development processes, underlying tools and methods have how...
 
Compacted and Industrially Customizable Ambient Intelligent Service Units: Typology, Examples and Performance
Found in: Intelligent Environments, International Conference on
By Thomas Linner, Matthias Kranz, Luis Roalter, Thomas Bock
Issue Date:July 2010
pp. 295-300
With fast proceeding demographic change, lack of qualified nursing staff and costs explosion concerning our health and welfare systems, new methods have to be developed to support elderly people in their home environment with ambient integrated and intelli...
 
Embedded Interaction: Interacting with the Internet of Things
Found in: IEEE Internet Computing
By Matthias Kranz, Paul Holleis, Albrecht Schmidt
Issue Date:March 2010
pp. 46-53
The Internet of Things assumes that objects have digital functionality and can be identified and tracked automatically. The main goal of embedded interaction is to look at new opportunities that arise for interactive systems and the immediate value users g...
 
Putting books back on the shelf: situated interactions with digital book collections on smartphones
Found in: Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia (MUM '13)
By Lauren Norrie, Marion Koelle, Matthias Kranz, Roderick Murray-Smith
Issue Date:December 2013
pp. 1-2
We consider the reasons why we organise books in a physical environment and investigate whether situating interactions with a smartphone could improve the user experience of e-readers. Our prototype uses the Kinect depth sensor to detect the position of a ...
     
SmartPiggy: a piggy bank that talks to your smartphone
Found in: Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia (MUM '13)
By Lukas Witzani, Marion Koelle, Matthias Kranz, Patrick Lindemann, Tobias Stockinger
Issue Date:December 2013
pp. 1-2
Saving money is usually a tedious task that requires a high degree of self-control for many of us. Some people have one or more specific savings targets in mind and thus need to prioritize them. We propose connecting a savings box with a personal smartphon...
     
Visual authentication: a secure single step authentication for user authorization
Found in: Proceedings of the 12th International Conference on Mobile and Ubiquitous Multimedia (MUM '13)
By Andreas Möller, Luis Roalter, Marion Koelle, Matthias Kranz, Patrick Lindemann, Stefan Diewald, Tobias Stockinger
Issue Date:December 2013
pp. 1-4
User authentication on publicly exposed terminals with established mechanisms, such as typing the credentials on a virtual keyboard, can be insecure e.g. due to shoulder surfing or due to a hacked terminal. In addition, username and password entry can be t...
     
Visualizations and Switching Mechanisms for Security Zones
Found in: Proceedings of International Conference on Advances in Mobile Computing & Multimedia (MoMM '13)
By Andreas Möller, Marion Koelle, Matthias Kranz, Peter Riedl, Phillip Koller, Rene Mayrhofer
Issue Date:December 2013
pp. 278-281
The ongoing evolution of mobile phones to "pocket computers" generated a demand for more and more applications to be ported to the mobile phone. Because a full security assessment for a whole mobile operating system would be prohibitively costly, currently...
     
Investigating self-reporting behavior in long-term studies
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Andreas Möller, Barbara Schmid, Luis Roalter, Matthias Kranz, Stefan Diewald
Issue Date:April 2013
pp. 2931-2940
Self-reporting techniques, such as data logging or a diary, are frequently used in long-term studies, but prone to subjects' forgetfulness and other sources of inaccuracy. We conducted a six-week self-reporting study on smartphone usage in order to investi...
     
Towards a holistic approach for mobile application development in intelligent environments
Found in: Proceedings of the 10th International Conference on Mobile and Ubiquitous Multimedia (MUM '11)
By Luis Roalter, Stefan Diewald, Andreas Moller, Matthias Kranz
Issue Date:December 2011
pp. 73-80
"There's An App For That" -- but how do we actually develop them? While smartphones and tablet PCs are getting more and more popular and their application scenarios are growing, we still develop them using only a standard integrated development environment...
     
3d gesture recognition applying long short-term memory and contextual knowledge in a CAVE
Found in: Proceedings of the 1st ACM international workshop on Multimodal pervasive video analysis (MPVA '10)
By Bjorn Schuller, Dejan Arsicc, Florian Eyben, Gerhard Rigoll, Luis Roalter, Martin Wollmer, Matthias Kranz, Moritz Kaiser
Issue Date:October 2010
pp. 33-36
Virtual reality applications are emerging into various regions of research and entertainment. Although visual and acoustic capabilities are already quite impressive, a wide range of users still criticizes the user interface. Frequently complex and very sen...
     
Context-aware kitchen utilities
Found in: Proceedings of the 1st international conference on Tangible and embedded interaction (TEI '07)
By Albrecht Schmidt, Alexis Maldonado, Benedikt Hornler, Gerhard Rigoll, Matthias Kranz, Michael Beetz, Radu Bogdan Rusu
Issue Date:February 2007
pp. 213-214
We report on approaches for context-awareness in a kitchen environment. Two devices, an augmented cutting board and a sensor-enriched knife, enable the environment to determine the type of food handled during the preparation of meals.
     
Ubiquitous presence systems
Found in: Proceedings of the 2006 ACM symposium on Applied computing (SAC '06)
By Albrecht Schmidt, Matthias Kranz, Paul Holleis
Issue Date:April 2006
pp. 1902-1909
Instant messaging has become a part of our daily live. Instant communication, either with a mobile device or with a computer based application, is an increasingly used form of communication. In this paper we analyze how current instant messaging can be ext...
     
Interacting with the ubiquitous computer: towards embedding interaction
Found in: Proceedings of the 2005 joint conference on Smart objects and ambient intelligence: innovative context-aware services: usages and technologies (sOc-EUSAI '05)
By Albrecht Schmidt, Matthias Kranz, Paul Holleis
Issue Date:October 2005
pp. 147-152
Computing and communication technology is widely used and integrated in devices, environments, and everyday objects. Even with major advances in technology the vision of ubiquitous computing - from a user perspective - is not yet achieved. In this paper we...
     
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