Media Computing Group: Thorsten Karrer

Dipl.-Inform. Thorsten Karrer Research Assistant Office location:   Room 2U13 Office hours:   By appointment only. See my basic schedule. Telephone:   +49 241 80-21064 Email:   karrer@cs.rwth-aachen.de Citations:   Google Scholar

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Navigation in Digital Media along Non-Dominant Domains

	DRAGON is a direct-manipulation interaction technique for frame-accurate navigation in video scenes. (read more) Note at CHI 2008. Received Best Note Award. Note at CHI 2012. Full paper at GI 2012.
	Fly is a novel Presentation Tool that breaks with the Slide Metaphor and assembles Information Landscapes on a 2D Plane. (read more) Full paper at CHI 2009. Note at CHI 2012. Case study at CHI 2012.
	Stacksplorer provides a novel way to visualize potential call stacks within a traditional IDE and allows navigation along these call stacks. (read more) Full paper at UIST 2011.
	PhaVoRIT is an advanced time-stretching algorithm based upon an improved phase vocoder. (read more) Full paper at ICMC 2006.
	Personal Orchestra lets visitors conduct the Vienna Philharmonic by controlling speed, volume, and the emphasis of different instrument sections. (read more) Jounal Article in the Computer Music Journal 2005.

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Smart Textiles and Flexible Devices

	Pinstripe is a textile Sensor that enables eyes-free continuous Input anywhere on interactive Clothing. (read more) Full paper at CHI 2011.
	Me Hates This is a frustration expression system based on the sweet physicality of beating the crap out of your computer. (read more) Work in Progress at CHI 2011.
	TWEND explores Twisting and Bending as new interaction gestures in mobile devices. (read more) Second place in the CHI 2008 student research competition.
	Mudpad is a multitouch screen that is enhanced with localized active haptic feedback. (read more) Note at ITS 2010. Received Best Note Award and Best Demo Award.

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Large-Scale Installations

We developed Silhouettes an interactive city-building game. A group of 16 players can construct future urban spaces by forming buildings and vegetation with the shadows of their bodies on a large projection screen. (read more) Silhouettes was installed inside the German-Chinese House at the World EXPO 2010 in Shanghai.

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Side Projects

	The i10 Thesis Template can help you write your thesis in LaTeX. (read more) Downloaded over 7000 times.
	ThoMoNetworking Framework makes it easy to write networked applications for Mac OS X and iOS. (read more) Downloaded over 2000 times.
	Our Dynamic Plugin Framework for Xcode makes it easy to develop and implement Xcode plugins that can be dynamically loaded and unloaded. (read more) Xcode 4 support coming soon.
	iEat lets you access the menu of your favorite Aachen Mensa via your OS X menu bar. (read more) Available on the App Store.
	JaPeThoPageIndicator serves your needs for this kind of view on the Mac platform. No more missing this useful iOS widget. (read more) Comes in NSView and CALayer flavors.
	ThoMoOFFViewer (OpenGL Core Profile Tutorial) is a simple viewer for 3D models that are stored as OFF files. Its main purpose is to serve as a demo code repository for people that want to learn writing OpenGL code using the version 3.2 Core Profile as it is implemented in MacOS X 10.7 Lion. (read more) Also includes slides of a talk we gave at the August 2011 Cocoa Heads Aachen meeting.

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Past Activities:

• Working on a OmniGraffle Stencil file (896.72 Kb) containing some of the devices we have in the MediaSpace.
• Worked on the AirGuitar project at CSIRO TFT.

Personal information:

• Contact information (internal access)

ACM Author-izer direct links to the digital library

Full List of Publications

( denotes a major peer-reviewed publication).

2012

	Leonhard Lichtschlag, Thomas Hess, Thorsten Karrer, and Jan Borchers. Canvas Presentations in the Wild. In Proceedings of the CHI 2012 Conference on Human Factors in Computing Systems, May 2012. .
	Leonhard Lichtschlag, Thomas Hess, Thorsten Karrer, and Jan Borchers. Fly: Studying Recall, Macrostructure Understanding, and User Experience of Canvas Presentations. In Proceedings of the CHI 2012 Conference on Human Factors in Computing Systems, May 2012. .
	Thorsten Karrer, Moritz Wittenhagen, and Jan Borchers. DragLocks: Handling Temporal Ambiguities in Direct Manipulation Video Navigation. In Proceedings of the CHI 2012 Conference on Human Factors in Computing Systems, May 2012. .

2011

	Yvonne Jansen, Thorsten Karrer, and Jan Borchers. MudPad: Tactile Feedback for Touch Surfaces. In CHI EA '11: Proceedings of the twenty-ninth annual SIGCHI conference on Human factors in computing systems (to appear), New York, NY, USA, 2011. ACM Press. .
	Florian Heller, Leonhard Lichtschlag, Moritz Wittenhagen, Thorsten Karrer, and Jan Borchers. Me Hates This: Exploring Different Levels of User Feedback for (Usability) Bug Reporting. In Extended Abstracts of the CHI 2011 Conference on Human Factors in Computing Systems, CHI EA '11, pages 1357-1362, New York, NY, USA, 2011. ACM. .
	Thorsten Karrer, Moritz Wittenhagen, Leonhard Lichtschlag, Florian Heller, and Jan Borchers. Pinstripe: Eyes-free Continuous Input on Interactive Clothing. In Proceedings of the CHI 2011 Conference on Human Factors in Computing Systems, Vancouver, Canada, May 2011. ACM Press. .
	Thorsten Karrer, Jan-Peter Krämer, Jonathan Diehl, Björn Hartmann, and Jan Borchers. Stacksplorer: Call Graph Navigation Helps Increasing Code Maintenance Efficiency. In Proceedings of the ACM UIST 2011 Symposium on User Interface Software and Technology, 2011. .

2010

	Yvonne Jansen, Thorsten Karrer, and Jan Borchers. MudPad: Tactile Feedback and Haptic Texture Overlay for Touch Surfaces. In ITS '10: Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces, pages 11-14, New York, NY, USA, November 2010. ACM. Best ITS 2010 Note Award, .
	Yvonne Jansen, Thorsten Karrer, and Jan Borchers. MudPad - A Tactile Memory Game. In ITS '10: Adjunct Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces (Best Demo Award), New York, NY, USA, November 2010. ACM. .
	Yvonne Jansen, Thorsten Karrer, and Jan Borchers. MudPad: Localized Tactile Feedback on Touch Surfaces. In UIST 2010 Extended Abstracts, New York, NY, October 2010. .
	Jan-Peter Krämer, Thorsten Karrer, Jonathan Diehl, and Jan Borchers. Stacksplorer: Understanding Dynamic Program Behavior. In Extended Abstracts of the ACM UIST 2010 Symposium on User Interface Software and Technology, New York, NY, October 2010. .
	Thorsten Karrer, Moritz Wittenhagen, Florian Heller, and Jan Borchers. Pinstripe: Eyes-free Continuous Input Anywhere on Interactive Clothing. In UIST 2010 Extended Abstracts, New York, NY, October 2010. .
	Jonathan Diehl, Thorsten Karrer, and Jan Borchers. Interactive System Architecture for Layered Applications. In Interactive System Architecture Workshop, September 2010. .
	Thorsten Karrer, Moritz Wittenhagen, Leonhard Lichtschlag, and Jan Borchers. ExamPen: How digital pen technology can support teachers and examiners. In CHI 2010 Workshop on Next Generation of HCI and Education, Atlanta, USA, April 2010. .
	Sarah Mennicken, Thorsten Karrer, Peter Russell, and Jan Borchers. First-Person Cooking: A Dual-Perspective Interactive Kitchen Counter. In CHI '10: Extended Abstracts on Human Factors in Computing Systems, New York, NY, USA, 2010. ACM Press. .

2009

Leonhard Lichtschlag, Thorsten Karrer, and Jan Borchers. Fly: a Tool to Author Planar Presentations. In Proceedings of the CHI 2009 Conference on Human Factors in Computing Systems, Boston, MA, USA, April 2009. ACM Press. .

2008

	Gero Herkenrath, Thorsten Karrer, and Jan Borchers. TWEND: Twisting and Bending as new Interaction Gesture in Mobile Devices. In Extended Abstracts of CHI 2008 Conference on Human Factors in Computing Systems, Florence, Italy, April 2008. ACM Press. Student Research Competition 2nd Place, .
	Thorsten Karrer, Malte Weiss, Eric Lee, and Jan Borchers. DRAGON: A Direct Manipulation Interface for Frame-Accurate In-Scene Video Navigation. In Proceedings of the CHI 2008 Conference on Human Factors in Computing Systems, pages 247-250, Florence, Italy, April 2008. ACM Press. Best CHI 2008 Note Award, .

2007

	Eric Lee, Thorsten Karrer, and Jan Borchers. An Analysis of Startup and Dynamic Latency in Phase Vocoder-Based Time-Stretching Algorithms. In Proceedings of the ICMC 2007 International Computer Music Conference, volume 2, pages 73-80, Copenhagen, Denmark, August 2007. .
	Eric Lee, Thorsten Karrer, and Jan Borchers. Improving Interfaces for Navigating Continuous Audio Timelines. In CHI 2007 Workshop on Supporting Non-Professional Users in the New Media Landscape, San Jose, USA, April 2007. .

2006

	David Holman, Predrag Stojadinovic, Thorsten Karrer, and Jan Borchers. Fly: an organic presentation tool. In CHI '06: CHI '06 extended abstracts on Human factors in computing systems, pages 863-868, New York, NY, USA, 2006. ACM. .
	Thorsten Karrer, Eric Lee, and Jan Borchers. PhaVoRIT: A Phase Vocoder for Real-Time Interactive Time-Stretching. In Proceedings of the ICMC 2006 International Computer Music Conference, pages 708-715, New Orleans, USA, November 2006. .
	Eric Lee, Henning Kiel, Saskia Dedenbach, Ingo Gruell, Thorsten Karrer, Marius Wolf, and Jan Borchers. iSymphony: An Adaptive Interactive Orchestral Conducting System for Conducting Digital Audio and Video Streams. In Extended Abstracts of CHI 2006 Conference on Human Factors in Computing Systems, pages 259 - 262, Montréal, Canada, April 2006. ACM Press. .
	Eric Lee, Thorsten Karrer, and Jan Borchers. Toward a Framework for Interactive Systems to Conduct Digital Audio and Video Streams. Computer Music Journal, 30(1):21-36, Spring 2006. The video for this article appears in the Computer Music Journal Sound and Video Anthology 29(4), 2005, .

2005

Thorsten Karrer. PhaVoRIT: A Phase Vocoder for Real-Time Interactive Time-Stretching. Master's thesis, RWTH Aachen University, Aachen, Germany, November 2005. .

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