Alumni

Dr. Christian Sandor

Research Interests

• Hybrid User Interfaces
• Software Frameworks for Graphical User Interfaces
• Tool Support for Interaction Design
• Visualization Techniques

Pictures of my Research

Our mascot in 3D: Chair.Dwarf3D

Projects

Immersive Configuration

In user interfaces in ubiquitous augmented reality, information can be distributed over a variety of different, but complementary, displays. For example, these can include stationary, opaque displays and see-through, head-worn displays. Users can also interact through a wide range of interaction devices. In the unplanned, everyday interactions that we would like to support, we would not know in advance the exact displays and devices to be used, or even the users who would be involved. All of these might even change during the course of interaction. Therefore, a flexible infrastructure for user interfaces in ubiquitous augmented reality should automatically accommodate a changing set of input devices and the interaction techniques with which they are used. This project embodies the first steps toward building a mixed-reality system that allows users to configure a user interface in ubiquitous augmented reality.
This project has been conducted at Columbia University by a a visiting scientist from our research group. .

Demo Immersive (Movie)

SHEEP

In this demo, we use a multiplayer shepherding game to explore the possibilities of mutimodal, multiuser interaction with wearable computing in an intelligent environment. The game is centered around a table with a beamerprojected pastoral landscape. Players can use different intuitive interaction technologies (beamer, screen, HMD, touchscreen, speech, gestures) offered by the mobile and stationary computers. Building on our DWARF framework, the system uses peer-to-peer, dynamically cooperating services to integrate different mobile devices (including spectators laptops) into the game.

Demo Sheep

CAR

The goal of CAR is to create a collaboration platform for computer scientists (UI programmers) and non-technicans (human factors, psychologists etc.). The platform allows collaborative design of visualizations and interaction metaphors to be used in the next-generation cars with Head-Up Displays. We focus on two scenarios: parking assistance and a tourist guide.

Demo CAR

TRAMP

The TRAMP system (Traveling Repair and Maintenance Platform) was developed in a Praktikum with 50 student participants. The realized scenario was to guide a mechanic who is equipped with a wearable computer to a customer who has a car breakdown. The mechanic is also instructed by the system on the actual repair process to fix the car. (The project has been conducted at the Chair for Applied Softwareengineering.)

Pathfinder

This was the first demonstration system for the DWARF framework. It shows Yet-Another-Campus-Navigaiton scenario but stays here for sentimental historic reasons (since it shows the old location of the computer science department in the heart of munich).

ARCHIE

For producing buildings in a collaborative way with all involved persons, ARCHIE (Augmented Reality Collaborative Home Improvement) shall be responsible for giving the system user the most familiar way to handle the information during the development process.

Demo ARCHIE -- internal project page

Publications

Not updated since 1/2006

Books, Journals

C. Sandor, G. Klinker
Lessons Learned in Designing Ubiquitous Augmented Reality User Interfaces
Chapter in upcoming book: "Emerging Technologies of Augmented Reality: Interfaces & Design" Michael Haller, Mark Billinghurst, Bruce Thomas, editors. 2006. Idea group inc. publishers (bib)

C. Sandor
A Software Toolkit and Authoring Tools for User Interfaces in Ubiquitous Augmented Reality
Dissertation (PhD thesis), Fakultät für Informatik, Technische Universität München, October 2005 (online version) (bib)

C. Sandor, G. Klinker
A Rapid Prototyping Software Infrastructure for User Interfaces in Ubiquitous Augmented Reality
Journal for Personal and Ubiquitous Computing, Springer Verlag, 2005, pp. 169-185. The original publication is available online at www.springerlink.com . (bib)

Demos

P. Georgel, C. Sandor, M. Meyer, R. Whitaker, G. Klinker
A Novel Approach to Automatic Layout for User Interface Elements in Augmented Reality
Demo at the Fourth IEEE and ACM International Symposium on Mixed and Augmented Reality, Vienna, Austria, Oct. 5 - 8, 2005. (bib)

C. Sandor, B. Bell, A. Olwal, N. Temiyabutr, S. Feiner
Visual End User Configuration of Hybrid User Interfaces
Demo at International Symposium on Mixed and Augmented Reality (ISMAR) 2004, Arlington, VA, USA, Nov 2-4, 2004 (bib)

C. Sandor, B. Bell, A. Olwal, N. Temiyabutr, S. Feiner
Visual End User Configuration of Hybrid User Interfaces
Demo description in ACM SIGMM 2004 Workshop on Effective Telepresence, New York, NY, USA, Oct. 15, 2004. (bib)

C. Sandor, A. MacWilliams, M. Wagner, M. Bauer, G. Klinker
SHEEP: The Shared Environment Entertainment Pasture
Demo at IEEE and ACM International Symposium on Mixed and Augmented Reality ISMAR 2002, Darmstadt, Germany, Sept. 30 - Oct. 1, 2002. (bib)

Conferences

M. Tönnis, C. Sandor, G. Klinker, C. Lange, H.Bubb
Experimental Evaluation of an Augmented Reality Visualization for Directing a Car Driver’s Attention
The Fourth IEEE and ACM International Symposium on Mixed and Augmented Reality, Vienna, Austria, Oct. 5 - 8, 2005, pp 56-59. (bib)

C. Sandor, A. Olwal, B. Bell, S. Feiner
Immersive Mixed-Reality Configuration of Hybrid User Interfaces
The Fourth IEEE and ACM International Symposium on Mixed and Augmented Reality, Vienna, Austria, Oct. 5 - 8, 2005. (bib)

O. Hilliges, C. Sandor, G. Klinker
A Lightweight Approach for Experimenting with Tangible Interaction Metaphors
Proc. of the International Workshop on Multi-user and Ubiquitous User Interfaces (MU3I) 2004, Funchal, Madeira (bib)

C. Kulas, C. Sandor, G. Klinker
Towards a Development Methodology for Augmented Reality User Interfaces
Proc. of the International Workshop exploring the Design and Engineering of Mixed Reality Systems - MIXER 2004, Funchal, Madeira, CEUR Workshop Proceedings (bib)

V. Novak, C. Sandor, G. Klinker
An AR Workbench for Experimenting with Attentive User Interfaces
International Symposium on Mixed and Augmented Reality (ISMAR) 2004, Arlington, VA, USA, Nov 2-4, 2004 (bib)

M. Bauer, O. Hilliges, A. MacWilliams, C. Sandor, M. Wagner, G. Klinker, J. Newman, G. Reitmayr, T. Pintaric, T. Fahmy, D. Schmalstieg
Integrating Studierstube and DWARF
International Workshop on Software Technology for Augmented Reality Systems. Tokyo, Japan, Oct. 7, 2003 (bib)

A. MacWilliams, C. Sandor, M. Wagner, M. Bauer, G. Klinker, B. Bruegge
Herding Sheep: Live System Development for Distributed Augmented Reality
Proceedings of The Second International Symposium on Mixed and Augmented Reality (ISMAR 2003), pp. 123-132. (bib)

M. Bauer, B. Bruegge, G. Klinker, A. MacWilliams, T. Reicher, C. Sandor, M. Wagner
An Architecture Concept for Ubiquitous Computing Aware Wearable Computers
International Workshop on Smart Appliances and Wearable Computing. Vienna, Austria, July 2, 2002 (bib)

M. Bauer, B. Bruegge, G. Klinker, A. MacWilliams, T. Reicher, S. Riß, C. Sandor, M. Wagner
Design of a Component-Based Augmented Reality Framework
Proceedings of The Second IEEE and ACM International Symposium on Augmented Reality (ISAR 2001), pp. 45-54. (bib)

C. Sandor, T. Reicher
CUIML: A Language for Generating Multimodal Human-Computer Interfaces
Proceedings of the European UIML Conference, 2001 (bib)

Others

A. MacWilliams, C. Sandor, M. Wagner
Begrenzt offen: Mac OS X als Portierungsziel
iX--Magazin für Professionelle Informationstechnik, 2/2003, pp. 90 (bib)

Teaching

Supervised students:

• Otmar Hilliges DA: A Control Component for Adaptive Augmented Reality User Interfaces^? (CAR)
• Vinko Novak DA: Attentive User Interfaces for DWARF (CAR)
• Fabian Sturm DA: Issues in View Management for 3D Objects on multiple Displays (CAR)
• Markus Geipel (SEP) Run-time Development and Configuration of Dynamic Service Networks
• Maximilian Schwinger^?,Korbinian Schwinger^?, Peter Hallama^?, Nikolas Doerfler^? (SEP): Authoring Adaptive User Interfaces (CAR)
• Michael Riedel (SEP): Development of a Layout Engine for the DWARF 3D Viewer
• Otmar Hilliges (SEP): Design of a 3D Viewer for DWARF (ProjectArchie)
• Johannes Wöhler (SEP): Development of Hands-Free Input Devices (ProjectArchie)
• Christian Kulas (Diploma Thesis): Usability Engineering for Ubiquitous Computing (ProjectArchie)
• Manja Kurzak (Diploma Thesis): Tangible Design Environment (ProjectArchie)
• Ming-Ju Lee (Bachelor Thesis): Authoring of 3D User Interfaces for DWARF-based Applications (ProjectSheep)
• Marco Feuerstein (SEP): Development of a DWARF-based display component for 3D scences on the iPAQ (ProjectSheep)

Misc

Talks

Not updated since 5/2005

• Presentation about my thesis at Cybermedia Center, Osaka University in Osaka, Japan (5/2005)
• Presentation about my thesis at Canon's MR Lab in Tokyo, Japan (2/2005)
• Presentation about my research at Viewpoints Research Institute in California, USA (8/2004)
• Presentation about my research at University of Maryland's HCIL in Maryland, USA (7/2004)
• Presentation about CAR at Studierstube Day 3 in Vienna, Austria (12/2003): Slides
• Panel Discussion at The International Workshop on Potential Industrial Applications of Mixed and Augmented Reality in Tokyo, Japan (10/2003): Slides
• Presentation about ProjectSheep at ISMAR in Tokyo, Japan (10/2003): Slides
• DWARF User Interface Tutorial in Munich, Germany (7/2003): Slides
• Presentation about CUIML at First European UIML Conference in Paris, France (3/2001): Slides