Mathias Ibsen

Position:Ph.D. Student Member
Office: D19 room 2.02
Telephone:+49 6151 533 600 88


Mathias Ibsen received his M.Sc. in Engineering, Artificial Intelligence and Algorithms from the Technical University of Denmark (DTU) in 2020. Subsequently, he became a PhD student member of the da/sec group at Faculty of Computer Science, Hochschule Darmstadt, Germany. He works on the EU-funded TReSPAsS-ETN project with the detection of manipulated face images.

Research interests

  • Image forensics
  • Presentation attack detection
  • Detection of manipulated face images
  • Deepfake detection
  • Applied AI

Current offerings and collaboration

Currently available bachelor/master thesis projects are listed on this page. If you have your own idea that relates to the above research interests or are interested in a collaboration, feel free to contact me by e-mail.


Feel free to contact me per e-mail if you have any inquiries.


Book Chapters

M. Ibsen, C. Rathgeb, D. Fischer, P. Drozdowski, C. Busch, „Digital Face Manipulation in Biometric Systems”, in Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, February 2022.

Journal Articles

M. Falkenberg, A. B. Ottsen, M. Ibsen, C.Rathgeb, „Child Face Recognition at Scale: Synthetic Data Generation and Performance Benchmark“, in arxiv (pre-print), 2023

M. Ibsen, C. Rathgeb, F. Brechtel, R. Klepp, K. Pöppelmann, A. George, S. Marcel, C. Busch, „Attacking Face Recognition with T-shirts: Database, Vulnerability Assessment and Detection”, in IEEE Access, 2023

C. Botezatu, M. Ibsen, C. Rathgeb, C. Busch,„Fun Selfie Filters in Face Recognition: Impact Assessment and Removal” in TBIOM 2022.

M. Ibsen, C. Rathgeb, P. Drozdowski, C. Busch, „Face Beneath the Ink: Synthetic Data and Tattoo Removal with Application to Face Recognition“, in Applied Sciences, 2022

M. Ibsen, C. Rathgeb, T. Fink, P. Drozdowski, C. Busch, „Impact of facial tattoos and paintings on face recognition systems”, in IET Biometrics, 2021.

Conference Papers

C. Rathgeb,  R. Nichols, M. Ibsen, P. Drozdowski,  C. Busch, „Crowd-powered Face Manipulation Detection: Fusing Human Examiner Decisions“ in International Conference on Image Processing (IEEE ICIP),  2022.

A. Dörsch, C. Rathgeb, M. Ibsen,  C. Busch „Are average Faces Master Faces?“ in Proc. Intl. Workshop on Biometrics and Forensics (IWBF), 2022.

M. Ibsen, L. J. Gonzalez-Soler, C. Rathgeb, P. Drozdowski, M. Gomez-Barrero, C. Busch, „Differential Anomaly Detection for Facial Images”, in Proc. IEEE Intl. Workshop on Information Forensics and Security (WIFS), 2021.

L. Dargaud, M. Ibsen, J. Tapia, C. Busch, „A Principal Component Analysis-Based Approach for Single Morphing Attack Detection”, in Proc.  IEEE/CVF Winter Conference on Applications of Computer Vision Workshops (WACVW) , 2023.

A. Foroughi, C. Rathgeb, M. Ibsen, C. Busch, „Benchmarking Cross-Domain Face Recognition with Avatars, Caricatures and Sketches“ in Proc. Intl. Conf. on Acoustics, Speech, and Signal Processing (ICASSP), Rhodes, Greece, June 2023.


  • Master of Science in Engineering, „Impact of Facial Tattoos on Face Recognition Systems“, Technical University of Denmark, July 2020.
  • Bachelor of Science in Engineering, „Giraf – Web API, Database, and Administration Panel“, Aalborg University (AAU), June 2018.