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 worked on the EU-funded TReSPAsS-ETN project with the detection of manipulated face images. He is now part of the German National Research Center for Applied Cybersecurity (ATHENE).

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.


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 Frontiers in Signal Processing, 2024

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 IEEE Transactions on Biometrics, Behavior, and Identity Science 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

M. Ibsen, R. Nichols, C. Rathgeb, D. J. Robertson, J. P. Davis, F. Løvåsdal, K. Raja, R. E. Jenkins, and C. Busch, „Conditional Face Image Manipulation Detection: Combining Algorithm and Human Examiner Decisions,“ (to appear) in ACM Workshop on Information Hiding and Multimedia Security, 2024.

C. Rathgeb,  M. Ibsen, D. Hartmann, S. Hradetzky, B. Ólafsdóttir, „Testing the Performance of Face Recognition for People with Down Syndrome“ (to appear) in Proc. International Conference on Automatic Face and Gesture Recognition (FG), 2024.

M.Ibsen, L. J. Gonzalez-Soler,  C. Rathgeb,  C. Busch, „TetraLoss: Improving the Robustness of Face Recognition against Morphing Attacks“ (to appear, main track) in Proc. International Conference on Automatic Face and Gesture Recognition (FG), 2024.

M. Ibsen, C. Rathgeb, S. Marcel, C. Busch „Multi-Channel Cross Modal Detection of Synthetic Face Images“, in Proc. International Workshop on Biometrics and Forensics (IWBF), 2024.

S. Lorenz, J Priesnitz, M. Ibsen, C. Busch, „Towards CNN-based Level 1 Feature Extraction for Contactless Fingerprint Recognition“ in Norwegian Information Security Conference (NISK), 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.

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.

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