PeterKeitler

Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

Peter Keitler


On top of Nevado Pastorouri, Perú

Research

Interactive position- and orientation tracking is a major prerequisite for augmented reality in general. The focus of my work is on the management of tracking and tracking accuracy in industrial environments.

The foundations for this have been laid during the trackframe project (2006-2009). Its focus was the integration of various kinds of sensors for the purpose of 6 DoF pose / position / orientation tracking in heterogeneous wide-area environments. The basic concept are spatial relationship patterns which represent recurring tracking/calibration/fusion problems and can be solved by a certain algorithm. Spatial Relationship Patterns can be combined to form a graph structure called the Spatial Relationship Graph (SRG). It represents the spatial relationships that are relevant for a certain tracking environment and at the same time provides all information that is needed to instantiate a dataflow which derives the spatial relationships needed by the AR/VR application. These core concepts are provided in terms of the Ubitrack library.

One major aspect of my research is the question how these concepts can help to facilitate design and maintenance of complex tracking environments. To this end, a graphical planning and analysis tool called trackman (trackframe manager) is being developed. It comprises functionality for off-line planning and configuration of tracking environments in terms of Spatial Relationship Graphs. Furthermore, concepts are being developed which allow for the evaluation of accuracy of tracking data within an existing tracking environment. Different sensors can be tested and the results can be compared.

In the context of the AVILUS project (since 2009) I now work on Monte Carlo simulations to assess the accuracy properties of various industrial tracking environments. For example, it is possible to simulate the resulting AR application error (e.g. 3D measurement or 2D video overlay error) based on the assumption of known sensor input noise. This work is integrated with trackman and the SRG concepts described above.

My Ph.D. advisor is Prof. Gudrun Klinker.

Students that are interested in this topic and want to contribute in terms of a Bachelor thesis, Master thesis, Diplomarbeit, SEP, etc., are always welcome in my room (03.13.040) to talk about further details.

Publications

2010
D. Pustka, M. Huber, C. Waechter, F. Echtler, P. Keitler, G. Klinker, J. Newman, D. Schmalstieg
Ubitrack: Automatic Configuration of Pervasive Sensor Networks for Augmented Reality
to appear in: IEEE Pervasive Computing, 2010. (bib)
2009
R. Morales-Garcia, P. Keitler, P. Maier, G. Klinker
An Underwater Augmented Reality System for Commercial Diving Operations
OCEANS 2009 MTS/IEEE, Biloxi, Mississippi, USA, November 2009. (bib)
P. Keitler, D. Pustka, M. Huber, F. Echtler, G. Klinker
Management of Tracking for Mixed and Augmented Reality Systems
The Engineering of Mixed Reality Systems, E. Dubois, P. Gray, L. Nigay (eds.), Human-Computer Interaction Series, Springer Verlag, 2010. (bib)
P. Keitler, F. Pankratz, B. Schwerdtfeger, D. Pustka, , G. Klinker, C. Rauch, A. Chathoth, J. Collomosse , Y. Song
Mobile Augmented Reality based 3D Snapshots
Sechster Workshop Virtuelle und Erweiterte Realität der GI-Fachgruppe VR/AR, Braunschweig, 18./19. November 2009 (bib)
P. Keitler, F. Pankratz, B. Schwerdtfeger, D. Pustka, , G. Klinker, C. Rauch, A. Chathoth, J. Collomosse , Y. Song
Mobile Augmented Reality based 3D Snapshots
The 8th IEEE and ACM International Symposium on Mixed and Augmented Reality, Orlando, Florida, Oct. 19-22, 2009. (bib)
2008
P. Keitler, M. Schlegel, G. Klinker
Indirect Tracking to Reduce Occlusion Problems
4th International Symposium on Visual Computing (ISVC), Las Vegas, Nevada, USA, December 2008. (bib)
F. Echtler, M. Huber, D. Pustka, P. Keitler, G. Klinker
Splitting the Scene Graph - Using Spatial Relationship Graphs Instead of Scene Graphs in Augmented Reality
3rd International Conference on Computer Graphics Theory and Applications (GRAPP '08), Funchal, Portugal, Jan. 22 - 25, 2008. (bib)
2007
M. Huber, D. Pustka, P. Keitler, F. Echtler, G. Klinker
A System Architecture for Ubiquitous Tracking Environments
The Sixth IEEE and ACM International Symposium on Mixed and Augmented Reality, Nara, Japan, Nov. 13 - 16, 2007. (bib)
D. Pustka, P. Keitler, M. Huber, F. Echtler, G. Klinker
Ubiquitous Tracking for Quickly Solving Multi-Sensor Calibration and Tracking Problems
Demonstration at the Fourth IEEE and ACM International Symposium on Mixed and Augmented Reality, Nara, Japan, Nov. 14 - 16, 2007 (bib)
D. Pustka, M. Huber, F. Echtler, P. Keitler
UTQL: The Ubiquitous Tracking Query Language v1.0
Technical Report TUM-I0718, Oct. 11, 2007. (bib)
2004
R. Bauernschmitt, E.U. Schirmbeck, M. Groher, P. Keitler, M. Bauer, H. Najafi, G. Klinker, R. Lange
Navigierte Platzierung endovaskulärer Aortenstents
Z Kardiologie 2004 93 S3: 116 (bib)

Available Student Projects

Interested in a diploma thesis or a term project? See list of topics or let's discuss your own ideas or one of these PossibleStudentProjects. In addition, please read GettingStartedForStudents. Please also have a look at StudentProjects for other interesting topics at our chair.

Topic Type
Error Visualization for Heterogeneous Tracking Environments DA, MA, BA
Accuracy Prediction for a Line-Camera based Optical Tracking System DA, MA, BA

Types: DA = Diplomarbeit, MA = Master Thesis, BA = Bachelor Thesis, SEP = Systementwicklungsprojekt, SA = Semesterarbeit, IDP = Interdisziplinäres Projekt

Teaching


UsersForm
Title: Dipl.-Inf. Univ.
Firstname: Peter
Middlename:  
Lastname: Keitler
Picture: keitlerpetericon.png
Birthday:  
Nationality: Germany
Languages: English, German
Groups: Industrial Augmented Reality, Ubiquitous Tracking (Sensor Fusion), System Architectures for Ubiquitous Augmented Reality
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Position: Scientific Staff
Status: Active
Emailbefore: keitler
Emailafter: in.tum.de
Room: MI 00.13.062
Telephone: +49 89 289 17091
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