About Me

I am a human-computer-interaction researcher and the manager of the Smart Human Robot Collaboration group at OFFIS - Institute for Information Technology in Oldenburg, Germany. I did my doctorate in spatial attention guidance for maritime deck officers and have years of experience developing novel interactive systems for various domains focusing on VR and AR interfaces. My current research interests are human-computer interaction, computer vision, augmented and virtual reality, and robotics.

Projects

Mobile Bridge

The Mobile Ship Bridge is a configurable ship’s bridge system in which new eNavigation technologies can be tested and demonstrated. In particular new interaction concepts are within the focus of the development. This includes both, the providing of information to nautical personal as well as new control concepts. The portable structure of the system allows a straightforward demonstration of these concepts in a real system environment, e.g. on real ship bridges as the system can be connected to the sensors on board of the ship in parallel with the real systems. An additional vision system supports the design, development and demonstration of these interaction concepts within a virtual environment. » Construction Manual & Documentation

Virtual Handles

This is an implementation of screen-based Virtual Handles and Information Displays for Ship Bridge Simulators. A Node.js server handles data exchange and delivers different views as HTML files accessable per name. We use Socket.IO for communication between views and the simulation. The folder client-examples includes code snippets in Java and Python, as well as a full example integration into the open source interactive 3D ship simulator BridgeCommand. » Source Code & Documentation

EyeMR

Mixed Reality devices can either augment reality (AR) or create completely virtual realities (VR). Combined with head-mounted devices and eye-tracking, they enable users to interact with these systems in novel ways. However, current eye-tracking systems are expensive and limited in the interaction with virtual content. In this project, we developed EyeMR, a low-cost system (below 100$) that enables researchers to rapidly prototype new techniques for eye and gaze interactions. Our system supports mono- and binocular tracking (using Pupil Capture) and includes a Unity framework to support the fast development of new interaction techniques. » Construction Manual & Documentation » Source Code

Backup-sh

A backup shell script for Archlinux - backs up list of installed packages, home directory and content of connected android phone to destination of choice. Include/exclude paths are configurable. » Source Code & Documentation

Publications

2024

Furuno, E., Hein, A., Stratmann, T. C. & Pfingsthorn, M. (2024). A Coarse-to-Fine Method for Data-Efficient Collaborative Place Recognition. In Proceedings of the 9th International Conference on Control and Robotics Engineering (ICCRE). https://doi.org/10.1109/ICCRE61448.2024.10589752

Liebers, C., Pfützenreuter, N., Prochazka, M., Megarajan, P., Furuno, E., Löber, J., Stratmann, T. C., Auda, J., Degraen, D., Gruenefeld, U. & Schneegass, S. (2024). Look Over Here! Comparing Interaction Methods for User-Assisted Remote Scene Reconstruction. In Extended Abstracts of the 2024 CHI Conference on Human Factors in Computing Systems. New York, NY, USA: ACM. https://doi.org/10.1145/3613905.3650982

Boll, S., Kun, A. L., Pfleging, B., and Shaer, O. & all authors of the abstracts in this report (2024). Human-AI Interaction for Work (Dagstuhl Seminar 23452). In Dagstuhl Reports, Volume 13, Issue 11, pp. 20-71, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024). https://doi.org/10.4230/DagRep.13.11.20

Liebers, C., Megarajan, P., Auda, J., Stratmann, T. C., Pfingsthorn, M., Gruenefeld, U., & Schneegass, S. (2024). Keep the Human in the Loop: Arguments for Human Assistance in the Synthesis of Simulation Data for Robot Training. Multimodal Technol. Interact. 2024, 8, 18. https://doi.org/10.3390/mti8030018

2020

Gruenefeld, U., Prädel, L., Illing, J., Stratmann, T. C., Drolshagen, S., & Pfingsthorn, M. (2020). Mind the ARm: realtime visualization of robot motion intent in head-mounted augmented reality. In Proceedings of Mensch und Computer 2020 (MuC'20) (pp. 259-266). New York, NY, USA: ACM. https://doi.org/10.1145/3404983.3405509

Lange, D., Stratmann, T. C., Gruenefeld, U., & Boll, S. (2020). HiveFive: Immersion Preserving Attention Guidance in Virtual Reality. In Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems (pp. 1–13). New York, NY, USA: ACM. https://doi.org/10.1145/3313831.3376803

2019

Stratmann, T. C., Brauer, D., & Boll, S. (2019). Supporting the Perception of Spatially Distributed Information on Ship Bridges. In Proceedings of Mensch und Computer 2019 (MuC'19) (pp. 475-479). New York, NY, USA: ACM. https://doi.org/10.1145/3340764.3344442

Wallbaum, T., Stratmann, T. C., & Boll, S. (2019). Classifying Sensitive Issues for Patients with Neurodevelopmental Disorders. In Proceedings of the 17th IFIP TC 13 International Conference on Human-Computer Interaction (INTERACT) (pp. 107-114). Springer, Cham. https://doi.org/10.1007/978-3-030-29381-9_7

Stratmann, T. C., Kempa, F., & Boll, S. (2019). LAME - Light-controlled Attention Guidance for Multi-Monitor Environments. In Proceedings of the 8th ACM International Symposium on Pervasive Displays (PerDis) (pp. 7:1–7:5). New York, NY, USA: ACM. https://doi.org/10.1145/3321335.3324935

2018

Stratmann, T. C., Gruenefeld, U., Stratmann, J., Schweigert, S., Hahn, A., & Boll, S. (2018). Mobile Bridge - A Portable Design Simulator for Ship Bridge Interfaces. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 12(4), 763-768. https://doi.org/10.12716/1001.12.04.16

Jung, J., Lee, H., Choi, J., Nanda, A., Gruenefeld, U., Stratmann, T. C., & Heuten, W. (2018). Ensuring Safety in Augmented Reality from Trade-off Between Immersion and Situation Awareness. Presented at the 17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR).

Gruenefeld, U., Stratmann, T. C., Jung, J., Lee, H., Choi, J., Nanda, A., & Heuten, W. (2018). Guiding Smombies: Augmenting Peripheral Vision with Low-Cost Glasses to Shift the Attention of Smartphone Users. Presented at the 17th IEEE International Symposium on Mixed and Augmented Reality (ISMAR).

Gruenefeld, U., Stratmann, T. C., Prädel, L., Pfingsthorn, M., & Heuten, W. (2018). BuildingBlocks: Head-mounted Virtual Reality for Robot Interaction in Large Non-Expert Audiences. Presented at the 4th Workshop on Public Space Human-Robot Interaction (PubRob 2018), Barcelona, Spain.

Meyer, B., Gruppe, P., Cornelsen, B., Stratmann, T. C., Gruenefeld, U., & Boll, S. (2018). Juggling 4.0: Learning Complex Motor Skills with Augmented Reality Through the Example of Juggling. In The 31st Annual ACM Symposium on User Interface Software and Technology Adjunct Proceedings (UIST) (pp. 54–56). New York, NY, USA: ACM. https://doi.org/10.1145/3266037.3266099

Gruenefeld, U., Stratmann, T. C., Brueck, Y., Hahn, A., Boll, S., & Heuten, W. (2018). Investigations on Container Ship Berthing from the Pilot's Perspective: Accident Analysis, Ethnographic Study, and Online Survey. TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 12(3), 493–498. https://doi.org/10.12716/1001.12.03.07

Gruenefeld, U., Stratmann, T. C., Auda, J., Koelle, M., Schneegass, S., & Heuten, W. (2018). Augmenting Augmented Reality. In Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI).

Gruenefeld, U., Stratmann, T. C., Prädel, L., & Heuten, W. (2018). MonoculAR: A Radial Light Display to Point Towards Out-of-view Objects on Augmented Reality Devices. In Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct (MobileHCI) (pp. 16–22). New York, NY, USA: ACM. https://doi.org/10.1145/3236112.3236115

Gruenefeld, U., Stratmann, T. C., Ali, A. E., Boll, S., & Heuten, W. (2018). RadialLight: Exploring Radial Peripheral LEDs for Directional Cues in Head-mounted Displays. In Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services (MobileHCI) (pp. 39:1–39:6). New York, NY, USA: ACM. https://doi.org/10.1145/3229434.3229437

Domhoff, D., Krick, T., Huter, K., El Ali, A., Stratmann, T. C., Wolf-Ostermann, K., & Rothgang, H. (2018). Digitale, automatisierte Analyse von Literaturdatenbanken in Public Health und Pflegewissenschaft – Quantitative Textanalyse großer Ergebnismengen mittels Topic Modeling. In S. Boll, A. Hein, W. Heuten, & K. Wolf-Ostermann (Eds.), Zukunft der Pflege , Tagungsband der 1. Clusterkonferenz 2018 – Innovative Technologien für die Pflege (pp. 190–195). Oldenburg: BIS-Verlag.

Stratmann, T. C., Gruenefeld, U., & Boll, S. (2018). EyeMR: Low-cost Eye-tracking for Rapid-prototyping in Head-mounted Mixed Reality. In Proceedings of the 2018 ACM Symposium on Eye Tracking Research & Applications (ETRA) (pp. 90:1–90:2). New York, NY, USA: ACM. https://doi.org/10.1145/3204493.3208336

Gruenefeld, U., Harre, M.-C., Stratmann, T. C., Lüdtke, A. & Heuten, W., (2018). Effective Visualization of Time-Critical Notifications in Virtual Reality. In Mensch und Computer 2018 - Tagungsband. Bonn: Gesellschaft für Informatik e.V. https://dx.doi.org/10.18420/muc2018-mci-0138

Stratmann, T. C., Löcken, A., Gruenefeld, U., Heuten, W., & Boll, S. (2018). Exploring Vibrotactile and Peripheral Cues for Spatial Attention Guidance. In Proceedings of the 7th ACM International Symposium on Pervasive Displays (PerDis) (pp. 9:1–9:8). New York, NY, USA: ACM. https://doi.org/10.1145/3205873.3205874

El Ali, A., Stratmann, T. C., Park, S., Schöning, J., Heuten, W., & Boll, S. C. J. (2018). Measuring, Understanding, and Classifying News Media Sympathy on Twitter After Crisis Events. In Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems (pp. 556:1–556:13). New York, NY, USA: ACM. https://doi.org/10.1145/3173574.3174130

Stratmann, T. C., Sadeghian Borojeni, S., Heuten, W., & Boll, S. C. J. (2018). ShoulderTap - Pneumatic On-body Cues to Encode Directions. In Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing Systems (p. LBW130:1–LBW130:6). New York, NY, USA: ACM. https://doi.org/10.1145/3170427.3188624

2017

Löcken, A., Blum, S., Stratmann, T. C., Gruenefeld, U., Heuten, W., van de Par, S., & Boll, S. (2017). Effects of Location and Fade-In Time of (Audio-)Visual Cues on Response Times and Success-Rates in a Dual-Task Experiment. In Proceedings of the ACM Symposium on Applied Perception (SAP '17).

Gruenefeld, U., Stratmann, T. C., Heuten, W., & Boll, S. (2017). PeriMR - A Prototyping Tool for Head-mounted Peripheral Light Displays in Mixed Reality. Presented at the MobileHCI '17. https://doi.org/10.1145/3098279.3125439

2016

Stratmann, T. C., & Boll, S. (2016). Demon Hunt - The Role of Endsley's Demons of Situation Awareness in Maritime Accidents. In C. Bogdan, J. Gulliksen, S. Sauer, P. Forbrig, M. Winckler, C. Johnson, … F. Kis (Eds.), Human-Centered and Error-Resilient Systems Development (pp. 203–212). Springer International Publishing. https://doi.org/10.1007/978-3-319-44902-9_13

Korinke, C., Stratmann, T. C., Laue, T., & Boll, S. (2016). SuperSelect: An Interactive Superpixel-Based Segmentation Method for Touch Displays. In Proceedings of the 2016 ACM on Multimedia Conference (pp. 717–719). New York, NY, USA: ACM. https://doi.org/10.1145/2964284.2973819

2013

Fortmann, J., Stratmann, T. C., Boll, S., Poppinga, B., & Heuten, W. (2013). Make Me Move at Work! An Ambient Light Display to Increase Physical Activity. In Proceedings of the 7th International Conference on Pervasive Computing Technologies for Healthcare (pp. 274–277). ICST, Brussels, Belgium, Belgium: ICST (Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering). https://doi.org/10.4108/icst.pervasivehealth.2013.252089