Ken Pfeuffer, PhD
Interaction Designer ● Eye-tracking Researcher ● Mobile / VR / AR UI-Design
I am a postdoctoral researcher at the Research Institute Cyber Defence (CODE), University of the Bundeswehr Munich in the Usable Security and Privacy group headed by Prof. Florian Alt.
Research Interests
My research interests lie in the area of human-computer interaction, UI design, adaptive systems and eye-tracking. I am interested in the exploration of experimental and radically novel interface designs of the future, and rethinking how existing devices and interfaces can be augmented by integrating new technologies and sensors. This includes the design of interaction techniques for tablet computers, multimodal and AI-driven systems, virtual and augmented reality, in the pursuit to explore new interactive capabilities to empower users.
Bio
Since May 2018 I hold a position as postdoctoral researcher at the Bundeswehr University in the Usable Security and Privacy group headed by Prof. Dr. Alt where I have been spearheading the topics of human behaviour studies in digital devices, adaptive interaction, and mixed reality. Before I conducted my PhD research from 2013-17 at Lancaster University in the UK under supervision of Prof. Dr. Gellersen, where I devised gaze based interaction techniques. I have also experience from two industrial-research internships at Microsoft and Google Research.
Contact
Find me at: ken.pfeuffer [at] gmail [dot] com | profiles: google scholar, dblp, UniBW.
Publications
2021
L. Müller, K. Pfeuffer, J. Gugenheimer, S. Prange, B. Pfleging, and F. Alt. SpatialProto: Using Real-World Captures for Rapid Prototyping of Mixed Reality Experiences. In Proceedings of the 2021 CHI Conference on Human Factors in Computing Systems (CHI ’21), Association for Computing Machinery, New York, NY, USA, 2021. doi:10.1145/3313831.3376840, pdf
K. Pfeuffer, Y. Abdrabou, A. Esteves, R. Rivu, Y. Abdelrahman, S. Meitner, A. Saadi, and F. Alt. Artention: a design space for gaze-adaptive user interfaces in augmented reality. Computers & Graphics, 2021. doi:https://doi.org/10.1016/j.cag.2021.01.001, pdf
2020
Yara Fanger, Ken Pfeuffer, Udo Helmbrecht, and Florian Alt. 2020. PIANX – A Platform for Piano Players to Alleviate Music Performance Anxiety Using Mixed Reality. In 19th International Conference on Mobile and Ubiquitous Multimedia (MUM 2020). Association for Computing Machinery, New York, NY, USA, 267–276. DOI:https://doi.org/10.1145/3428361.3428394
Ken Pfeuffer, Lukas Mecke, Sarah Delgado Rodriguez, Mariam Hassib, Hannah Maier, and Florian Alt. 2020. Empirical Evaluation of Gaze-enhanced Menus in Virtual Reality. In <i>26th ACM Symposium on Virtual Reality Software and Technology</i> (<i>VRST ’20</i>). Association for Computing Machinery, New York, NY, USA, Article 20, 1–11. DOI:https://doi.org/10.1145/3385956.3418962
Yasmeen Abdrabou, Ken Pfeuffer, Mohamed Khamis, and Florian Alt. 2020. GazeLockPatterns: Comparing Authentication Using Gaze and Touch for Entering Lock Patterns. In ACM Symposium on Eye Tracking Research and Applications (ETRA ’20 Short Papers). Association for Computing Machinery, New York, NY, USA, Article 29, 1–6. DOI:https://doi.org/10.1145/3379156.3391371
Radiah Rivu, Yasmeen Abdrabou, Ken Pfeuffer, Augusto Esteves, Stefanie Meitner, and Florian Alt. 2020. StARe: Gaze-Assisted Face-to-Face Communication in Augmented Reality. In ACM Symposium on Eye Tracking Research and Applications (ETRA ’20 Adjunct). Association for Computing Machinery, New York, NY, USA, Article 14, 1–5. DOI:https://doi.org/10.1145/3379157.3388930
Radiah Rivu, Yasmeen Abdrabou, Ken Pfeuffer, Mariam Hassib, and Florian Alt. 2020. Gaze’N’Touch: Enhancing Text Selection on Mobile Devices Using Gaze. In Extended Abstracts of the 2020 CHI Conference on Human Factors in Computing Systems (CHI EA ’20). Association for Computing Machinery, New York, NY, USA, 1–8. DOI:https://doi.org/10.1145/3334480.3382802
2019
Yomna Abdelrahman, Paweł W. Woźniak, Pascal Knierim, Dominik Weber, Ken Pfeuffer, Niels Henze, Albrecht Schmidt, and Florian Alt. 2019. Exploring the domestication of thermal imaging. In Proceedings of the 18th International Conference on Mobile and Ubiquitous Multimedia (MUM ’19). Association for Computing Machinery, New York, NY, USA, Article 9, 1–7. DOI:https://doi.org/10.1145/3365610.3365648
Heiko Drewes, Ken Pfeuffer, and Florian Alt. 2019. Time- and space-efficient eye tracker calibration. In Proceedings of the 11th ACM Symposium on Eye Tracking Research & Applications (ETRA ’19). Association for Computing Machinery, New York, NY, USA, Article 7, 1–8. DOI:https://doi.org/10.1145/3314111.3319818
D. Mardanbegi, B. Mayer, K. Pfeuffer, S. Jalaliniya, H. Gellersen and A. Perzl, EyeSeeThrough: Unifying Tool Selection and Application in Virtual Environments,” 2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR), Osaka, Japan, 2019, pp. 474-483. doi: 10.1109/VR.2019.8797988
Sheikh Rivu, Yasmeen Abdrabou, Thomas Mayer, Ken Pfeuffer, and Florian Alt. 2019. GazeButton: enhancing buttons with eye gaze interactions. In Proceedings of the 11th ACM Symposium on Eye Tracking Research & Applications (ETRA ’19). Association for Computing Machinery, New York, NY, USA, Article 73, 1–7. DOI:https://doi.org/10.1145/3317956.3318154
Ken Pfeuffer, Matthias J Geiger, Sarah Prange, Lukas Mecke, Daniel Buschek, Florian Alt. 2019. Behavioural Biometrics in VR: Identifying People from Body Motion and Relations in Virtual Reality. Proceedings of the 37th Annual ACM Conference on Human Factors in Computing Systems (CHI ’19). To appear. doi
Sarah Prange, Daniel Buschek, Ken Pfeuffer, Lukas Mecke, Peter Ehrich, Jens Le, and Florian Alt. 2019. Go for GOLD: Investigating User Behaviour in Goal-Oriented Tasks. In Extended Abstracts of the 2019 CHI Conference on Human Factors in Computing Systems (CHI EA ’19). Association for Computing Machinery, New York, NY, USA, Paper LBW0256, 1–6. DOI:https://doi.org/10.1145/3290607.3312949
2018
Lukas Mecke, Ken Pfeuffer, Sarah Prange, and Florian Alt. 2018. Open Sesame!: User Perception of Physical, Biometric, and Behavioural Authentication Concepts to Open Doors. In Proceedings of the 17th International Conference on Mobile and Ubiquitous Multimedia (MUM 2018), Slim Abdennadher and Florian Alt (Eds.). ACM, New York, NY, USA, 153-159. DOI: https://doi.org/10.1145/3282894.3282923
Daniel Buschek, Sarah Völkel, Clemens Stachl, Lukas Mecke, Sarah Prange, and Ken Pfeuffer. 2018. Experience Sampling as Information Transmission: Perspective and Implications. In Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers (UbiComp ’18). ACM, New York, NY, USA, 606-611. DOI: https://doi.org/10.1145/3267305.3267543
Bariş Serim, Ken Pfeuffer, Hans Gellersen, and Giulio Jacucci. 2018. Visual Attention-Based Access: Granting Access Based on Users’ Joint Attention on Shared Workspaces. Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 2, 3, Article 133 (September 2018), 23 pages. DOI: https://doi.org/10.1145/3264943
Analysis and Modelling of Grid Performance on Touchscreen Mobile Devices
Ken Pfeuffer, Yang Li. 2018. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI ’18). ACM, Montreal, QC, Canada. doi, pdf
2017
PhD Thesis: Extending Touch with Eye Gaze
Ken Pfeuffer. 2017. Lancaster University, UK. doi, pdf
Gaze + Pinch Interaction in Virtual Reality
Ken Pfeuffer, Benedikt Mayer, Diako Mardanbegi and Hans Gellersen. 2017. In Proceedings of the 2017 Symposium on Spatial User Interaction (SUI ’17). ACM, Brighton, UK, to appear. doi, pdf, video
Thumb + Pen Interaction on Tablets
Ken Pfeuffer, Ken Hinckley, Michel Pahud and Bill Buxton. 2017. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI ’17). ACM, Denver, CO, USA, 3254-3266, doi, pdf, video, WindowsReport, onMSFT, WindowsCentral , SlashGear
Look Together: Using Gaze for Assisting Co-located Collaborative Search
Yanxia Zhang, Ken Pfeuffer, Ming Ki Chong, Jason Alexander, Andreas Bulling, Hans Gellersen. 2016. Springer Personal and Ubiquitous Computing. 1-14, doi
2016
GazeArchers: Playing with Individual and Shared Attention in a Two-Player Look&Shoot Tabletop Game
Ken Pfeuffer, Jason Alexander, and Hans Gellersen. 2016. In Proceedings of the 15th International Conference on Mobile and Ubiquitous Multimedia (MUM’16). ACM, Rovaniemi, Finland. doi, video
Gaze and Touch Interaction on Tablets
Ken Pfeuffer and Hans Gellersen. 2016. In Proceedings of the 29th annual ACM symposium on User interface software and technology (UIST ’16). ACM, Tokio, Japan. 301-311, pdf, video, doi, talk
Partially-indirect Bimanual Input with Gaze, Pen, and Touch for Pan, Zoom, and Ink Interaction
Ken Pfeuffer, Jason Alexander, and Hans Gellersen. 2016. In Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI ’16). ACM, New York, NY, USA, 2845-2856, doi, pdf, video, talk
2015
Gaze-Shifting: direct-indirect input with pen and touch modulated by gaze (best paper nominee)
Ken Pfeuffer, Jason Alexander, Ming Ki Chong, Yanxia Zhang, and Hans Gellersen. 2015. In Proceedings of the 28th annual ACM symposium on User interface software and technology (UIST ’15). ACM, Charlotte, NC, USA. 373-383. doi, pdf, video, talk
A collaborative gaze aware information display
Ken Pfeuffer, Yanxia Zhang, and Hans Gellersen. 2015. In Adjunct Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp/ISWC’15 Adjunct), ACM New York, NY, USA. 389-391. doi, video
Gaze+touch vs. touch: what’s the trade-off when using gaze to extend touch to remote displays?
In 15th IFIP TC.13 International Conference on Human-Computer Interaction (INTERACT ’15): 2015. 349-367. video, doi
2014
Gaze-touch: combining gaze with multi-touch for interaction on the same surface
Ken Pfeuffer, Jason Alexander, Ming Ki Chong, and Hans Gellersen. 2014. In Proceedings of the 27th annual ACM symposium on User interface software and technology (UIST ’14). ACM, New York, NY, USA, 509-518. doi, pdf, video
2013
Pursuit calibration: making gaze calibration less tedious and more flexible
Ken Pfeuffer, Melodie Vidal, Jayson Turner, Andreas Bulling, and Hans Gellersen. 2013. In Proceedings of the 26th annual ACM symposium on User interface software and technology (UIST ’13). ACM, New York, NY, USA, 261-270. doi, pdf, video, talk
Pursuits: eye-based interaction with moving targets
Mélodie Vidal, Ken Pfeuffer, Andreas Bulling, and Hans W. Gellersen. 2013. In CHI ’13 Extended Abstracts on Human Factors in Computing Systems (CHI EA ’13). ACM, New York, NY, USA, 3147-3150. doi video
2012
Investigating mid-air pointing interaction for projector phones
Christian Winkler, Ken Pfeuffer, and Enrico Rukzio. 2012. In Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces (ITS ’12). ACM, New York, NY, USA, 85-94. doi, video
2011
Exploring ambient visualizations of context information
Alt, F.; Shirazi, A.S.; Kaiser, A.; Pfeuffer, K.; Gurkan, E.; Schmidt, A.; Holleis, P.;” Wagner, M., , 2010 8th IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshop 2010), pp.788-791, doi
Ken Pfeuffer 