Christian Rathgeb

Degree:	Prof. Dr.
Position:	Principal Investigator
Office:	D19 room 2.06
Email:	christian.rathgeb -at- h-da.de
Telephone:	+49.6151.533-60085

Christian Rathgeb is a Professor with the Faculty of Computer Science, Hochschule Darmstadt, Germany. He is a Principal Investigator in the National Research Center for Applied Cybersecurity (ATHENE) and a Program Chair of the International Conference of the Biometrics Special Interest Group (BIOSIG).

Research Interests

Biometrics
Iris and face recognition
Privacy-enhancing technologies

Current Offerings

For a list of further currently offered bachelor- and master theses, please have a look at this page. If you may have a specific topic related to my research interests in mind that is not listed on the aforementioned page, please get in touch with me via email.

Activities/Memberships

Member of the European Association for Biometrics (EAB).
Member of the IET Biometrics Editorial Board.

Downloads

USIT – University of Salzburg Iris Toolkit v2.0 is a Windows/Linux software package for iris recognition which comprises algorithms for (1) iris pre-processing, (2) feature extraction, and (3) feature comparison.

Selected Publications

Books

Christian Rathgeb, Ruben Tolosana, Ruben Vera, Christoph Busch, “Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks”, Advances in Computer Vision and Pattern Recognition, Springer, 2022.

Christian Rathgeb, Christoph Busch, „Iris and Periocular Biometric Recognition“, In IET Biometrics Series, IET, 2017.

Christian Rathgeb, Andreas Uhl, Peter Wild, „Iris Recognition: From Segmentation to Template Security“, In Advances in Information Security 59. Springer, New York, 2012.

Journal Articles

Pietro Melzi, Ruben Tolosana, Ruben Vera-Rodriguez, Minchul Kim, Christian Rathgeb et al., „FRCSyn-onGoing: Benchmarking and comprehensive evaluation of real and synthetic data to improve face recognition systems“, Information Fusion 107, 102322, 2024.

Jannis Priesnitz, Roberto Casula, Jascha Kolberg, Meiling Fang, Akhila Madhu, Christian Rathgeb, Gian Luca Marcialis, Naser Damer, Christoph Busch, „Mobile Contactless Fingerprint Presentation Attack Detection: Generalizability and Explainability“, IEEE Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2024.

Magnus Falkenberg, Anders Bensen Ottsen, Mathias Ibsen, Christian Rathgeb, „Child face recognition at scale: Synthetic data generation and performance benchmark“, Frontiers in Signal Processing 4, 1308505, 2024.

Pietro Melzi, Christian Rathgeb, Ruben Tolosana, Ruben Vera, Christoph Busch, „An overview of privacy-enhancing technologies in biometric recognition“, ACM Computing Surveys (C-SUR), 2024.

Lazaro Janier Gonzalez-Soler, Durita K. Jónsdóttir, Christian Rathgeb, Daniel Fischer, „Information Fusion and Hand Alignment to improve Hand Recognition in Forensic Scenarios“, IEEE Access, 2024.

Daile Osorio-Roig, Lazaro Janier González-Soler, Christian Rathgeb, Christoph Busch, „Privacy-preserving Multi-biometric Indexing based on Frequent Binary Patterns“, IEEE Transactions on Information Forensics and Security (T-IFS), 2024.

Pia Bauspieß, Tjerand Silde, Matej Poljuha, Alexandre Tullot, Anamaria Costache, Christian Rathgeb, Jascha Kolberg, Christoph Busch, „BRAKE: Biometric Resilient Authenticated Key Exchange“, IEEE Access, 2024.

Jannis Priesnitz, Axel Weißenfeld, Laurenz Ruzicka, Christian Rathgeb, Bernhard Strobl, Ralph Lessmann, Christoph Busch, „MCLFIQ: Mobile Contactless Fingerprint Image Quality“, IEEE Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2024.

Indu Joshi, Marcel Grimmer, Christian Rathgeb, Christoph Busch, Francois Bremond, Antitza Dantcheva, „Synthetic data in human analysis: A survey“, IEEE Transactions on Pattern Analysis and Machine Intelligence (T-PAMI), 2024.

Marcel Grimmer, Christian Rathgeb, Christoph Busch, „Pose impact estimation on face recognition using 3d-aware synthetic data with application to quality assessment“, IEEE Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2024.

Jascha Kolberg, Yannik Schäfer, Christian Rathgeb, Christoph Busch, „On the Potential of Algorithm Fusion for Demographic Bias Mitigation in Face Recognition“, IET Biometrics 2024 (1), 1808587, 2024.

Torsten Schlett, Christian Rathgeb, Juan Tapia, Christoph Busch, „Considerations on the Evaluation of Biometric Quality Assessment Algorithms“, IEEE Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2023.

Mathias Ibsen, Christian Rathgeb, Fabian Brechtel, Ruben Klepp, Katrin Pöppelmann, Anjith George, Sebastien Marcel, Christoph Busch, „Attacking Face Recognition With T-Shirts: Database, Vulnerability Assessment, and Detection“, IEEE Access, 57867-57879, 2023.

Mathias Ibsen, Christian Rathgeb, Pawel Drozdowski, Christoph Busch, „Face beneath the ink: Synthetic data and tattoo removal with application to face recognition“, Applied Sciences 12 (24), 12969, 2022.

Christian Rathgeb, Pawel Drozdowski, Dinusha C. Frings, Naser Damer, Christoph Busch, „Demographic fairness in biometric systems: What do the experts say?“, IEEE Technology and Society Magazine 41 (4), 71-82, 2022.

Marta Gomez-Barrero, Pawel Drozdowski, Christian Rathgeb, et al., „Biometrics in the era of COVID-19: challenges and opportunities“, in Transactions on Technology and Society (T-TS), 2022.

Pia Bauspieß, Jascha Kolberg, Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „Privacy-Preserving Preselection for Protected Biometric Identification Using Public-Key Encryption with Keyword Search“, in Transactions on Industrial Informatics (T-II), 2022.

Cristian Botezatu, Mathias Ibsen, Christian Rathgeb, Christoph Busch, „Fun Selfie Filters in Face Recognition: Impact Assessment and Removal“, in Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2022.

Jannis Priesnitz, Christian Rathgeb, Nicolas Buchmann, Christoph Busch, „SynCoLFinGer: Synthetic contactless fingerprint generator“, in Pattern Recognition Letters (PRL), 2022.

Dailé Osorio-Roig, Christian Rathgeb, Pawel Drozdowski, Philipp Terhörst, Vitomir Štruc, Christoph Busch, „An Attack on Facial Soft-biometric Privacy Enhancement“, in Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2022.

Christian Rathgeb, Daniel Fischer, Pawel Drozdowski, Christoph Busch, „Reliable detection of doppelgängers based on deep face representations„, IET Biometrics, 2022.

Robert Nichols, Christian Rathgeb, Pawel Drozdowski, Christoph Busch, „Psychophysical Evaluation of Human Performance in Detecting Digital Face Image Manipulations“, in IEEE Access, 2022

Jannis Priesnitz, Rolf Huesmann, Christian Rathgeb, Nicolas Buchmann, Christoph Busch, „Mobile Contactless Fingerprint Recognition: Implementation, Performance and Usability Aspects“, Sensors, 2022.

Pawel Drozdowski, Fabian Stockhardt, Christian Rathgeb, Christoph Busch, „Signal-level fusion for indexing and retrieval of facial biometric data“, IET Biometrics, 2022.

Christian Rathgeb, Johannes Merkle, Johanna Scholz, Benjamin Tams, Vanessa Nesterowicz, „Deep face fuzzy vault: Implementation and performance“, Computers & Security, 2022.

Torsten Schlett, Christian Rathgeb, Olaf Henniger, Javier Galbally, Julian Fierrez, Christoph Busch, „Face Image Quality Assessment: A Literature Survey“, in ACM Computing Surveys (CSUR), December 2021.

Pawel Drozdowski, Fabian Stockhardt, Christian Rathgeb, Dailé Osorio-Roig, Christoph Busch, „Feature Fusion Methods for Indexing and Retrieval of Biometric Data: Application to Face Recognition with Privacy Protection“, IEEE Access, 2021.

Dailé Osorio-Roig, Christian Rathgeb, Pawel Drozdowski, Christoph Busch, „Stable Hash Generation for Efficient Privacy-Preserving Face Identification“, in Transactions on Biometrics, Behavior, and Identity Science (TBIOM), 2021.

Torsten Schlett, Christian Rathgeb, Christoph Busch, „Deep learning-based single image face depth data enhancement“, In Computer Vision and Image Understanding (CVIU), 2021.

Mathias Ibsen, Christian Rathgeb, Pawel Drozdowski, Christoph Busch, „Impact of facial tattoos and paintings on face recognition systems“, in IET Biometrics, 2021.

Jannis Priesnitz, Christian Rathgeb, Nicolas Buchmann, Christoph Busch, “An overview of touchless 2D fingerprint recognition“, in EURASIP Journal on Image & Video Processing, 2021.

Christian Rathgeb, Kevin Bernardo, Nathania E. Haryanto, Christoph Busch, „Effects of Image Compression on Face Image Manipulation Detection: A Case Study on Facial Retouching“, in IET-Biometrics, 2021

Christian Rathgeb, Pawel Drozdowski, and Christoph Busch, “Makeup Presentation Attacks: Review and Detection Performance Benchmark” , in IEEE Access, 2020.

Ulrich Scherhag, Jonas Kunze, Christian Rathgeb, Christoph Busch, „Face Morph Detection for Unknown Morphing Algorithms and Image Sources: A Multi-Scale Block Local Binary Pattern Fusion Approach“, in IET-Biometrics, 2020

Ulrich Scherhag, Christian Rathgeb, Johannes Merkle, Christoph Busch, „Deep Face Representations for Differential Morphing Attack Detection“, in IEEE Transactions on Information Forensics and Securit (T-IFS), 2020

Christian Rathgeb, Claudia-Ioana Satnoianu, Nathania E. Haryanto, Kevin Bernardo, Christoph Busch, „Differential Detection of Facial Retouching: A Multi-Biometric Approach“, in IEEE Access, 2020.

Pawel Drozdowski, Christian Rathgeb, Antitza Dantcheva, Naser Damer, Christoph Busch, „Demographic Bias in Biometrics: A Survey on an Emerging Challenge“, in Transactions on Technology and Society (T-TS), 2020.

Christian Rathgeb, Angelika Botaljov, Fabian Stockhardt, Sergey Isadskiy, Luca Debiasi, Andreas Uhl, Christoph Busch, „PRNU-based Detection of Facial Retouching“ IET-Biometrics, 2020.

Pawel Drozdowski, Christian Rathgeb, Benedikt-Alexander Mokroß, Christoph Busch, „Multi-biometric Identification with Cascading Database Filtering“, in Transactions on Biometrics, Behavior, and Identity Science (T-BIOM), 2020.

Christian Rathgeb, Antitza Dantcheva, Christoph Busch, „Impact and Detection of Facial Beautification in Face Recognition: An Overview“, in IEEE Access, 2019.

Ulrich Scherhag, Luca Debiasi, Christian Rathgeb, Christoph Busch, Andreas Uhl, „Detection of Face Morphing Attacks based on PRNU Analysis“, in IEEE Trans. on Biometrics, Behavior, and Identity Science (T-BIOM), 2019.

Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „Computational Workload in Biometric Identification Systems: An Overview“, in IET Biometrics, 2019.

Ulrich Scherhag, Christian Rathgeb, Johannes Merkle, Ralph Breithaupt, Christoph Busch, „Face Recognition Systems under Morphing Attacks: A Survey“, in IEEE Access, 2019.

Christian Rathgeb, Johannes Wagner, Christoph Busch, „SIFT-based iris recognition revisited: prerequisites, advantages and improvements“, in Pattern Analysis and Applications, Springer, 2018.

Marta Gomez-Barrero, Christian Rathgeb, Ulrich Scherhag, Christoph Busch, „Predicting the Vulnerability of Biometric Systems to Attacks based on Morphed Biometric Information“, In IET Biometrics, 2018.

Marta Gomez-Barrero, Javier Galbally, Christian Rathgeb, Christoph Busch, „General Framework to Evaluate Unlinkability in Biometric Template Protection Systems“, In IEEE Trans. on Information Forensics and Security, 2018.

Marta Gomez-Barrero, Christian Rathgeb, Guoqiang Li, R. Raghavendra, Javier Galbally, Christoph Busch, „Multi-Biometric Template Protection Based on Bloom Filters“, In Information Fusion, 2018.

Christian Rathgeb, Nicolas Buchmann, Heinz Hofbauer, Harald Baier, Andreas Uhl, Christoph Busch, „Methods for Accuracy-preserving Acceleration of Large-Scale Comparisons in CPU-based Iris Recognition Systems“, In IET Biometrics, 2017

Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „Bloom Filter-based Search Structures for Indexing and Retrieving Iris-Codes“, In IET Biometrics, 2017.

Christian Rathgeb, Anika Pflug, Johannes Wagner, Christoph Busch, „Effects of image compression on ear biometrics“, In IET Biometrics, 2016.

Christian Rathgeb, Benjamin Tams, Johannes Wagner, Christoph Busch, „Unlinkable Improved Multi-Biometric Iris Fuzzy Vault“, In EURASIP Journal on Information Security, 2016.

Marta Gomez-Barrero, Christian Rathgeb, Javier Galbally, Christoph Busch, Julian Fierrez, „Unlinkable and Irreversible Biometric Template Protection based on Bloom filters“, In Information Sciences, 2016.

Christian Rathgeb, Christoph Busch, „Cancelable Multi-Biometrics: Mixing Iris-Codes based on Adaptive Bloom Filters“, In Elsevier Computers and Security, 2014.

Christian Rathgeb, Frank Breitinger, Christoph Busch, Harald Baier, „On the Application of Bloom Filters to Iris Biometrics“, In IET Biometrics, 2014.

Christian Rathgeb, Andreas Uhl, „Statistical Attack against Fuzzy Commitment Scheme“, In IET Biometrics, 2012.

Christian Rathgeb, Andreas Uhl, „A Survey on Biometric Cryptosystems and Cancelable Biometrics, In EURASIP Journal on Information Security, 2011.

Christian Rathgeb, Andreas Uhl, „Context-based Biometric Key-Generation for Iris“, In IET Computer Vision (Special Issue on Future Trends in Biometric Processing), 2011.

Book Chapters

Kiran Raja , Raghavendra Ramachandra , Marta Gomez-Barrero , Christian Rathgeb, Christoph Busch, „Vision transformers for fingerprint presentation attack detection“, in Handbook of Biometric Anti-Spoofing: Presentation Attack Detection and Vulnerability Assessment, Springer, 2023

Mathias Ibsen, Christian Rathgeb, Daniel Fischer, Pawel Drozdowski, Christoph Busch, „Digital Face Manipulation in Biometric Systems”, in Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, February 2022.

Ulrich Scherhag, Christian Rathgeb, Christoph Busch, „Face Morphing Attack Detection Methods“, in Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, February 2022.

Ruben Tolosana, Christian Rathgeb, Ruben Vera-Rodriguez, Christoph Busch, Luisa Verdoliva, Siwei Lyu et al., „Future Trends in Digital Face Manipulation and Dtection“, in Handbook of Digital Face Manipulation and Detection: From DeepFakes to Morphing Attacks, February 2022.

Benedikt-Alexander Mokroß, Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „Efficient identification in large-scale vein recognition systems using spectral minutiae representations“, in Handbook of Vascular Biometrics, Springer, 2020.

Vedrana Krivokuća, Marta Gomez-Barrero, Sébastien Marcel, Christian Rathgeb, Christoph Busch, „Towards Measuring the Amount of Discriminatory Information in Finger Vein Biometric Characteristics Using a Relative Entropy Estimator“, in Handbook of Vascular Biometrics, Springer, 2020.

Christian Rathgeb, Christoph Busch, „Biometric Template Protection: State-of-the-Art, Issues, and Challenges“, In User-Centric Privacy and Security in Biometrics, IET, 2017.

Christian Rathgeb, Johannes Wagner, Christoph Busch, „Iris Biometric Template Protection“, In Iris and Periocular Biometric Recognition, IET, 2017.

Christian Rathgeb, Christoph Busch, „Fundamentals in Iris Recognition“, In Iris and Periocular Biometric Recognition, IET, 2017.

Christian Rathgeb, Andreas Uhl, Peter Wild, Heinz Hofbauer, „Design Decisions in an Iris Recognition SDK“, In Handbook of Iris Recognition (2nd Edition), Springer, 2016.

Nicolas Buchmann, Christian Rathgeb, Roel Peeters, Harald Baier, Christoph Busch, „BioPACE: Biometric-Protected Authentication Connection Establishment“, In Advances in Security and Privacy of Biometrics Systems, Cambridge Scholars Publishing, 2015.

Christian Rathgeb, Andreas Uhl, Christoph Busch, „Ageing Effects and Implications for Biometric Template Protection“, In Age Factors in Biometric Processing, IET, 2012.

Christian Rathgeb, Christoph Busch, „Multibiometric Template Protection: Issues and Challenges“, In New Trends and Developments in Biometrics, InTech, 2012.

Christian Rathgeb, Andreas Uhl, „The State-of-the-Art in Iris Biometric Cryptosystems“, In State of the art in Biometrics, InTech, 2011

Conference and Workshop Papers

Mathias Ibsen, Robert Nichols, Christian Rathgeb, David J. Robertson, Josh P. Davis, Frøy Løvåsdal, Kiran Raja, Ryan E. Jenkins, Christoph Busch, „Conditional face image manipulation detection: combining algorithm and human examiner decisions“, ACM Workshop on Information Hiding and Multimedia Security (IH&MMSec), 2024″.

Mathias Ibsen, Christian Rathgeb, Sebastien Marcel, Christoph Busch, „Multi-Channel Cross Modal Detection of Synthetic Face Images“, International Workshop on Biometrics and Forensics (IWBF), 2024.

Christian Rathgeb, Mathias Ibsen, Denise Hartmann, Simon Hradetzky, Berglind Ólafsdóttir, „Testing the Performance of Face Recognition for People with Down Syndrome“, International Conference on Automatic Face and Gesture Recognition (FG), 2024.

Mathias Ibsen, Lazaro-Janier González-Soler, Christian Rathgeb, Christoph Busch, „TetraLoss: Improving the Robustness of Face Recognition against Morphing Attacks“, International Conference on Automatic Face and Gesture Recognition (FG), 2024.

Torsten Schlett, Christian Rathgeb, Juan Tapia, Christoph Busch, „Double Trouble? Impact and Detection of Duplicates in Face Image Datasets“, International Conference on Pattern Recognition Applications and Methods (ICPRAM), 2024.

Lazaro-Janier Gonzalez-Soler, M Salwowski, Christian Rathgeb, Daniel Fischer, „TattTRN: Template Reconstruction Network for Tattoo Retrieval“, Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2024.

Ivan DeAndres-Tame, Ruben Tolosana, Pietro Melzi, Ruben Vera-Rodriguez, Minchul Kim, Christian Rathgeb, et al., „FRCSyn challenge at CVPR 2024: Face recognition challenge in the era of synthetic data“, Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2024.

Pietro Melzi, Ruben Tolosana, Ruben Vera-Rodriguez, Minchul Kim, Christian Rathgeb, et al., „FRCSyn challenge at WACV 2024: Face recognition challenge in the era of synthetic data“, Winter Conference on Applications of Computer Vision Workshops (WACVW), 2024.

Pia Bauspieß, Chiara-Marie Zok, Anamaria Costache, Christian Rathgeb, Jascha Kolberg, and Christoph Busch, „MT-PRO: Multibiometric Template Protection Based On Homomorphic Transciphering“, IEEE International Workshop on Information Forensics and Security (WIFS), 2023.

Daile Osorio-Roig, Paul-Anton Gerlitz, Christian Rathgeb, Christoph Busch, „Reversing Deep Face Embeddings with Probable Privacy Protection“, International Workshop on Information Forensics and Security (WIFS), 2023.

Daile Osorio-Roig, Mahdi Ghafourian, Christian Rathgeb, Ruben Vera-Rodriguez, Christoph Busch, Julian Fierrez, „Optimizing Key-Selection for Face-based One-Time Biometrics via Morphing“, International Workshop on Information Forensics and Security (WIFS), 2023.

Pietro Melzi, Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez, Aythami Morales, Dominik Lawatsch, Florian Domin, Maxim Schaubert, „Synthetic Data for the Mitigation of Demographic Biases in Face Recognition“, International Joint Conference on Biometrics (IJCB), 2023.

Marcel Grimmer, Christian Rathgeb, Ruben Veldhuis, Christoph Busch, „NeutrEx: A 3D Quality Component Measure on Facial Expression Neutrality“, International Joint Conference on Biometrics (IJCB), 2023.

Pietro Melzi, Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez, Dominik Lawatsch, Florian Domin, Maxim Schaubert, „GANDiffFace: Controllable Generation of Synthetic Datasets for Face Recognition with Realistic Variations“, International Conference on Computer Vision Workshops (ICCVW), 2023.

Christian Rathgeb, Benjamin Tams, Johannes Merkle, Vanessa Nesterowicz, Ulrike Korte, Matthias Neu, „Multi-Biometric Fuzzy Vault based on Face and Fingerprints“, International Joint Conference on Biometrics (IJCB), 2023.

Pia Bauspieß, Marcel Grimmer, Cecilie Fougner, Damien Le Vasseur, Thomas Thaulow Stöcklin, Ana Costache, Christian Rathgeb, Jascha Kolberg, Christoph Busch, „HEBI: Homomorphically encrypted biometric indexing“, International Joint Conference on Biometrics (IJCB), 2023.

Jannis Priesnitz, Jascha Kolberg, Meiling Fang, Akhila Madhu, Christian Rathgeb, Naser Damer, Christoph Busch, „COLFIPAD: A presentation attack detection benchmark for contactless fingerprint recognition“, International Joint Conference on Biometrics (IJCB), 2023.

Lazaro-Janier González-Soler, Christian Rathgeb, Daniel Fischer, Kacper M. Zyla, „On the impact of tattoos on hand recognition“, International Conference of the Biometrics Special Interest Group (BIOSIG), 2023.

Jannis Priesnitz, Roberto Casula, Christian Rathgeb, Gian Luca Marcialis, Christoph Busch, „Towards contactless fingerprint presentation attack detection using algorithms from the contact-based domain“, International Conference of the Biometrics Special Interest Group (BIOSIG), 2023.

Tim Rohwedder, Daile Osorio-Roig, Christian Rathgeb, Christoph Busch, „Benchmarking fixed-length fingerprint representations across different embedding sizes and sensor types“, International Conference of the Biometrics Special Interest Group (BIOSIG), 2023.

Ahmad Foroughi, Christian Rathgeb, Mathias Ibsen, Christoph Busch, „Benchmarking Cross-Domain Face Recognition with Avatars, Caricatures and Sketches“, International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2023.

Torsten Schlett, Sebastian Schachner, Christian Rathgeb, Juan Tapia, Christoph Busch, „Effect of Lossy Compression Algorithms on Face Image Quality and Recognition“, International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2023.

Lazaro-Janier Gonzalez-Soler, Christian Rathgeb, Daniel Fischer, „Semi-synthetic data generation for tattoo segmentation“, International Workshop on Biometrics and Forensics (IWBF), 2023.

Pietro Melzi, Hatef Otroshi Shahreza, Christian Rathgeb, Ruben Tolosana, Ruben Vera-Rodriguez, Julian Fierrez, Sebastien Marcel, Christoph Busch, „Multi-IVE: Privacy enhancement of multiple soft-biometrics in face embeddings“, Winter Conference on Applications of Computer Vision Workshops (WACVW), 2023.

Jascha Kolberg, Jannis Priesnitz, Christian Rathgeb, Christoph Busch, „COLFISPOOF: A new database for contactless fingerprint presentation attack detection research“, Winter Conference on Applications of Computer Vision Workshops (WACVW), 2023.

Christian Rathgeb, Robert Nichols, Mathias Ibsen, Pawel Drozdowski, Christoph Busch, „Crowd-powered Face Manipulation Detection: Fusing Human Examiner Decisions“, in Intl. Conf. on Image Processing (ICIP), 2022.

Dailé Osorio-Roig, Christian Rathgeb, Hatef Otroshi Shahreza, Christoph Busch, Sébastien Marcel, „Indexing Protected Deep Face Templates by Frequent Binary Patterns“, in Intl. Joint Conf. on Biometrics (IJCB), 2022.

Hatef Otroshi Shahreza, Christian Rathgeb, Dailé Osorio-Roig, Vedrana Krivokuća Hahn, Sébastien Marcel, Christoph Busch, Sébastien Marcel, „Hybrid Protection of Biometric Templates by Combining Homomorphic Encryption and Cancelable Biometrics“, in Intl. Joint Conf. on Biometrics (IJCB), 2022.

Siri Lorenz, Jannis Priesnitz, Christian Rathgeb, Christoph Busch, „Modelling Frequent Imperfections of Contactless Fingerprints“, in Intl. Joint Conf. on Biometrics (IJCB), 2022.

Elidona Shiqerukaj, Christian Rathgeb, Johannes Merkle, Pawel Drozdowski, Benjamin Tams, „Fusion of Face Demorphing and Deep Face Representations for Differential Morphing Attack Detection“, in Intl. Conf. of the Biometrics Special Interest Group (BIOSIG), 2022

Torsten Schlett, Christian Rathgeb, Juan Tapia, Christoph Busch, „Evaluating Face Image Quality Score Fusion for Modern Deep Learning Models“, in Intl. Conf. of the Biometrics Special Interest Group (BIOSIG), 2022

Dailé Osorio-Roig, Tim Rohwedder, Christian Rathgeb, Christoph Busch, „Analysis of Minutiae Quality for Improved Workload Reduction in Fingerprint Identification“, in Intl. Conf. of the Biometrics Special Interest Group (BIOSIG), 2022

Jascha Kolberg, Christian Rathgeb, Christoph Busch, „The Influence of Gender and Skin Colour on the Watchlist Imbalance Effect in Facial Identification Scenarios“, in Intl. Conf. of Pattern Recognition (ICPR), 2022.

Dailé Osorio-Roig, Torsten Schlett, Christian Rathgeb, Juan Tapia, Christoph Busch, „Exploring Quality Scores for Workload Reduction in Biometric Identification“, in Intl. Workshop on Biometrics and Forensics (IWBF), 2022.

André Dörsch, Christian Rathgeb, Mathias Ibsen, Christoph Busch, „Are Average Faces Master Faces?“, in Intl. Workshop on Biometrics and Forensics (IWBF), 2022.

Pia Bauspieß, Jonas Olafsson, Jascha Kolberg, Pawel Drozdowski, Christian Rathgeb, and Christoph Busch, „Improved Homomorphically Encrypted Biometric Identification Using Coefficient Packing“, in Intl. Workshop on Biometrics and Forensics (IWBF), 2022.

Mathias Ibsen, Lázaro Janier Gonzalez-Soler, Christian Rathgeb, Pawel Drozdowski, Marta Gomez-Barrero, Christoph Busch, “Differential Anomaly Detection for Facial Images”, in IEEE Intl. Workshop on Information Forensics and Security (WIFS), 2021.

Siri Lorenz, Ulrich Scherhag, Christian Rathgeb, and Christoph Busch, „Morphing attack detection: A fusion approach“, in 2021 IEEE 24th Intl. Conf. on Information Fusion (FUSION). IEEE, 2021, pp. 703–709.

Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „The Watchlist Imbalance Effect in Biometric Face Identification: Comparing Theoretical Estimates and Empiric Measurements“, in International Conference on Computer Vision Workshops (ICCVW), 2021.

C. Rathgeb, P. Drozdowski, M. Obel, A. Dörsch, F. Stockhardt, N. E. Haryanto, K. Bernardo, C. Busch, „Impact of Doppelgängers on Face Recognition: Database and Evaluation“, in Intl. Conf. of the Biometrics Special Interest Group (BIOSIG), 2021.

Pawel Drozdowski, Sebastian Grobarek, Jenja Schurse, Christian Rathgeb, Fabian Stockhardt, Christoph Busch, „Makeup Presentation Attack Potential Revisited: Skills Pay the Bills“, in International Workshop on Biometrics and Forensics (IWBF), 2021.

Jannis Priesnitz, Christian Rathgeb, Nicolas Buchmann, Christoph Busch, “Deep Learning-based Semantic Segmentation for Touchless Fingerprint Recognition“ in TC4 Workshop on Mobile and Wearable Biometrics (WMWB), 2021.

Christian Rathgeb, Pawel Drozdowski, Christoph Busch, “Detection of Makeup Presentation Attacks based on Deep Face Representations,” in Proc. Int. Conf. on Pattern Recognition (ICPR), 2020.

Pawel Drozdowski, Bernhard Prommegger, Georg Wimmer, Rudolf Schraml, Christian Rathgeb, Andreas Uhl, Christoph Busch, „Demographic Bias: A Challenge for Fingervein Recognition Systems?“, in European Signal Processing Conference (EUSIPCO), 2020.

Jannis Priesnitz, Christian Rathgeb, Nicolas Buchmann, Christoph Busch, „Touchless Fingerprint Sample Quality: Prerequisites for the Applicability of NFIQ2.0“ in Proc. International Conference of the Biometrics Special Interest Group (BIOSIG), 2020.

Aleksandar Mitkovski, Johannes Merkle, Christian Rathgeb, Benjamin Tams, Kevin Bernardo, Nathania E. Haryanto, Christoph Busch, „Simulation of Print-Scan Transformations for Face Images based on Conditional Adversarial Networks“, in Proc. International Conference of the Biometrics Special Interest Group (BIOSIG), Darmstadt, Germany, September 2020.

Pawel Drozdowski, Daniel Fischer, Christian Rathgeb, Julian Geissler, Jan Knedlik, Christoph Busch, „Can Generative Colourisation Help Face Recognition?“, in International Conference of the Biometrics Special Interest Group (BIOSIG), 2020.

Jascha Kolberg, Pawel Drozdowski, Marta Gomez-Barrero, Christian Rathgeb, Christoph Busch, „Efficiency Analysis of Post-quantum-secure Face Template Protection Schemes based on Homomorphic Encryption“, in Proc. International Conference of the Biometrics Special Interest Group (BIOSIG), 2020.

Christian Rathgeb, Pawel Drozdowski, Daniel Fischer, Christoph Busch, “Vulnerability Assessment and Detection of Makeup Presentation Attacks,” in Proc. Int. Workshop on Biometrics and Forensics (IWBF), pp. 1–6., 2020

Christian Rathgeb, Didem Dogan, Fabian Stockhardt, Maria De Marsico, Christoph Busch, „Plastic Surgery: An Obstacle for Deep Face Recognition?“, in 15th IEEE Computer Society Workshop on Biometrics (CVPRW), pp. 1–8., 2020.

Jascha Kolberg, Pia Bauspieß, Marta Gomez-Barrero, Christian Rathgeb, Markus Dürmuth, Christoph Busch, „Template Protection based on Homomorphic Encryption: Computationally Efficient Application to Iris-Biometric Verification and Identification“, in Proc. IEEE Workshop on Information Forensics and Security (WIFS), 2019.

Pawel Drozdowski, Nicolas Buchmann, Christian Rathgeb, Marian Margraf, Christoph Busch, „On the Application of Homomorphic Encryption to Face Identification“, in Proc. International Conference of the Biometrics Special Interest Group (BIOSIG), 2019.

Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „Turning a vulnerability into an asset: Accelerating Facial Identification with Morphing“, in Proc. International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2019.

Luca Debiasi, Christian Rathgeb, Ulrich Scherhag, Andreas Uhl, Christoph Busch, „PRNU Variance Analysis for Morphed Face Image Detection“, in Proc. Int. Conference on Biometrics: Theory, Applications, and Systems (BTAS’18), 2018.

Juan Tapia, Christian Rathgeb, Christoph Busch, „Sex-Prediction from Periocular Images across Multiple Sensors and Spectra“, in Proc. International Workshop on Ubiquitous implicit Biometrics and health signals monitoring for person-centric applications (UBIO’18), 2018.

Dailé Osorio Roig, Pawel Drozdowski, Christian Rathgeb, Annette Morales González Quevedo, Eduardo Garea Llano, Christoph Busch, „Iris Recognition in Visible Wavelength: Impact and automated Detection of Glasses“, in Proc. International Workshop on Ubiquitous implicit Biometrics and health signals monitoring for person-centric applications (UBIO’18), 2018.

Pawel Drozdowski, Daniel Fischer, Christian Rathgeb, Christopher Schiel, Christoph Busch, „Database Binning and Retrieval in Multi-Fingerprint Identification Systems“, in Proc. International Workshop on Information Forensics and Security (WIFS’18), 2018.

Pawel Drozdowski, Florian Struck, Christian Rathgeb, Christoph Busch, „Benchmarking Binarisation Schemes for Deep Face Templates“, in Proc. International Conference on Image Processing (ICIP’18), 2018.

Dailé Osorio-Roig, Christian Rathgeb, Marta Gomez-Barrero, Annette Morales-González, Eduardo Garea-Llano and Christoph Busch, „Visible Wavelength Iris Segmentation: A Multi-Class Approach using Fully Convolutional Neuronal Networks“, in Proc. Int. Conf. of the Biometrics Special Interest Group (BIOSIG’18), 2018.

Ulrich Scherhag, Christian Rathgeb, Christoph Busch, „Performance Variation of Morphed Face Image Detection Algorithms across different Datasets“, in Proc. Int. Workshop on Biometrics and Forensics (IWBF’18), 2018.

Luca Debiasi, Ulrich Scherhag, Christian Rathgeb, Andreas Uhl, Christoph Busch, „PRNU-based Detection of Morphed Face Images“, in Proc. Int. Workshop on Biometrics and Forensics (IWBF’18), 2018.

Ulrich Scherhag,Christian Rathgeb,Christoph Busch, „Towards detection of morphed face images in electronic travel documents“, In Proc. 13th International Workshop on Document Analysis Systems (DAS’18), 2018.

Pawel Drozdowski, Florian Struck, Christian Rathgeb, Christoph Busch, „Detection of Glasses in Near-infrared Ocular Images“, in Proc. International Conference on Biometrics (ICB’18), 2018.

Torsten Schlett, Christian Rathgeb, Christoph Busch, „Multi-spectral Iris Segmentation in visible Wavelengths“, In Proc. International Conference on Biometrics (ICB’18), 2018.

Christian Rathgeb, Torsten Schlett, Nicolas Buchmann, Harald Baier, Christoph Busch, „Multi-sample Compression of Iris Images using High Efficiency Video Coding“, In Proc. International Conference on Biometrics (ICB’18), 2018.

Christian Rathgeb, Christoph Busch, „On the Feasibility of Creating Morphed Iris-Codes“, In Proc. International Joint Conference on Biometrics (IJCB’17), 2017.

Pawel Drozdowski, Christian Rathgeb, Heinz Hofbauer, Johannes Wagner, Andreas Uhl, Christoph Busch, „Towards Pre-alignment of Near-infrared Iris Images“, In Proc. International Joint Conference on Biometrics (IJCB’17), 2017.

Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „Multi-Iris Indexing and Retrieval: Fusion Strategies for Bloom Filter-based Search Structures“, In Proc. International Joint Conference on Biometrics (IJCB’17), 2017.

Christian Rathgeb, Christoph Busch, „Improvement of Iris Recognition based on Iris-Code Bit-Error Pattern Analysis“, In Proc. Int. Conf. of the Biometrics Special Interest Group (BIOSIG’17), 2017.

Pawel Drozdowski, Christian Rathgeb, Christoph Busch, „SIC-Gen: A Synthetic Iris-Code Generator“, In Proc. Int. Conf. of the Biometrics Special Interest Group (BIOSIG’17), 2017.

Ulrich Scherhag, Andreas Nautsch, Christian Rathgeb, Marta Gomez-Barrero, Raymond Veldhuis, Luuk Spreeuwers, Maikel Schils, Davide Maltoni, Patrick Grother, Sébastien Marcel, Ralph Breithaupt, Raghavendra Ramachandra, Christoph Busch, „Biometric Systems under Morphing Attacks: Assessment of Morphing Techniques and Vulnerability Reporting“, In Proc. Int. Conf. of the Biometrics Special Interest Group (BIOSIG’17), 2017.

Marta Gomez-Barrero, Christian Rathgeb, Kiran Raja, Raghavendra Ramachandra, Christoph Busch, „Biometric Symmetry: Implications on Template Protection“, in Proc. European Signal Processing Conference (EUSIPCO’17), 2017.

Esbern Anderson-Hoppe, Christian Rathgeb, Christoph Busch, „Combining Multiple Iris Texture Features for Unconstrained Recognition in Visible Wavelengths“, in Proc. International Workshop on Biometrics and Forensics (IWBF’17), 2017.

Marta Gomez-Barrero, Christian Rathgeb, Ulrich Scherhag, Christoph Busch, „Is Your Biometric System Robust to Morphing Attacks?“, in Proc. International Workshop on Biometrics and Forensics (IWBF’17), 2017.

Ulrich Scherhag, R. Ramachandra, Kiran Raja, Marta Gomez-Barrero, Christian Rathgeb, Christoph Busch, „On the Vulnerability and Detection of Digital Morphed and Scanned Face Images“, in Proc. International Workshop on Biometrics and Forensics (IWBF’17), 2017.

Torsten Schlett, Christian Rathgeb, Christoph Busch, „A Binarization Scheme for Face Recognition based on Multi-scale Block Local Binary Patterns“, in Proceedings of International Conference of the Biometrics Special Interest Group (BIOSIG’16), 2016.

Christian Rathgeb, Heinz Hofbauer, Andreas Uhl, Christoph Busch, „TripleA: Accelerated Accuracy-preserving Alignment for Iris-Codes“, In Proceedings of the 9th IAPR International Conference on Biometrics (ICB’16), 2016.

Benjamin Tams, Johannes Merkle, Christian Rathgeb, Johannes Wagner, Ulrike Korte, Christoph Busch, „Improved Fuzzy Vault Scheme for Alignment-Free Fingerprint Features“, In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG’15), 2015.

Heinz Hofbauer, Christian Rathgeb, Johannes Wagner, Andreas Uhl, Christoph Busch, „Investigation of Better Portable Graphics Compression for Iris Biometric Recognition“, In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG’15), 2015.

Anika Pflug, Christian Rathgeb, Ulrich Scherhag, Christoph Busch, “Binarization of Histogram Models: An Application to Efficient Biometric Identification”, In Proceedings of the 2nd International Conference on Cybernetics (CYBCONF’15), Special Session on Reliable Biometrics (BIORELIABILITY’15), 2015.

Christian Rathgeb, Frank Breitinger, Harald Baier, Christoph Busch, „Towards Bloom Filter-based Indexing of Iris Biometric Data“, In Proceedings of the 8th IAPR International Conference on Biometrics (ICB’15), 2015, (Best Poster Paper Award).

Julien Bringer, Constance Morel, Christian Rathgeb, „Security analysis of Bloom Filter-based Iris Biometric Template Protection“, In Proceedings of the 8th IAPR International Conference on Biometrics (ICB’15), 2015.

Christian Rathgeb, Marta Gomez-Barrero, Christoph Busch, Javier Galbally, Julian Fierrez, „Towards Cancelable Multi-Biometrics based on Adaptive Bloom Filters: A Case Study on Feature Level Fusion of Face and Iris“, In Proceedings of 3rd International Workshop on Biometrics and Forensics (IWBF’15), 2015.

Christian Rathgeb, Johannes Wagner, Benjamin Tams, Christoph Busch, „Preventing the Cross-Matching Attack in Bloom Filter-based Cancelable Biometrics“, In Proceedings of 3rd International Workshop on Biometrics and Forensics (IWBF’15), 2015.

Stefan Billeb, Christian Rathgeb, Michael Buschbeck, Herbert Reininger, Klaus Kasper, „Efficient Two-stage Speaker Identification based on Universal Background Models“, In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG’14), 2014.

Benjamin Tams, Christian Rathgeb, „Towards Efficient Privacy-Preserving Two-Stage Identification for Fingerprint-based Biometric Cryptosystems“, In Proceedings of International Joint Conference on Biometrics (IJCB’14), 2014.

Christian Rathgeb, Andreas Uhl, Peter Wild, „Effects of Severe Image Compression on Iris Segmentation Performance“, In Proceedings of International Joint Conference on Biometrics (IJCB’14), 2014. (Best Poster Paper Award)

Anika Pflug, Johannes Wagner, Christian Rathgeb, Christoph Busch, „Impact of Severe Signal Degradation on Ear Recognition Performance“, In Proceedings of Biometrics & Forensics & De-identification and Privacy Protection (BiForD’14), 2014.

Marta Gomez-Barrero, Christian Rathgeb, Javier Galbally, Julian Fierrez, Christoph Busch, „Protected Facial Biometric Templates Based on Local Gabor Patterns and Adaptive Bloom Filters“, In Proceedings of the 22nd International Conference on Pattern Recognition (ICPR’14), 2014.

Nicolas Buchmann, Christian Rathgeb, Harald Baier, Christoph Busch, „Towards electronic identification and trusted services for biometric authenticated transactions in the Single Euro Payments Area“, In Proceedings of the 2nd Annual Privacy Forum (APF’14), LNCS 8450, 2014.

Johannes Wagner, Anika Pflug, Christian Rathgeb, Christoph Busch, „Effects of Severe Signal Degradation on Ear Detection“, In Proceedings of the 2nd International Workshop on Biometrics and Forensics (IWBF’14), 2014.

Alina Krupp, Christian Rathgeb, Christoph Busch, „Social Acceptance of Biometric Technologies in Germany: A Survey“, In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG’13), 2013.

Christian Rathgeb, Frank Breitinger, Christoph Busch, „Alignment-Free Cancelable Iris Biometric Templates based on Adaptive Bloom Filters“, In Proceedings of the 6th IAPR International Conference on Biometrics (ICB’13), 2013.

Heinz Hofbauer, Christian Rathgeb, Andreas Uhl, Peter Wild, „Image Metric-based Biometric Comparators: A Supplement to Feature Vector-based Hamming Distance?“, In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG’12), 2012.

Christian Rathgeb, Andreas Uhl, Peter Wild, „Iris-Biometric Comparators: Exploiting Comparison Scores towards an Optimal Alignment under Gaussian Assumption“, In Proceedings of the 5th IAPR/IEEE International Conference on Biometrics (ICB ’12), 2012.

Christian Rathgeb, Andreas Uhl, Peter Wild, „Reliability-balanced Feature Level Fusion for Fuzzy Commitment Scheme“, In Proceedings of the International Joint Conference on Biometrics (IJCB ’11), 2011.

Christian Rathgeb, A. Uhl, „Statistical Attack against Iris-Biometric Fuzzy Commitment Schemes“, In Proceedings of the IEEE Computer Society and IEEE Biometrics Council Workshop on Biometrics (CVPRW ’11), 2011.

Christian Rathgeb, Andreas Uhl, Peter Wild, „On Combining Selective Best Bits of Iris-Codes“, In Proceedings of the Biometrics and ID Management Workshop (BioID ’11), 2011.

Christian Rathgeb, Andreas Uhl, Peter Wild, „Incremental Iris Recognition: A Single-algorithm Serial Fusion Strategy to Optimize Time Complexity“, In Proceedings of the 4th IEEE International Conference on Biometrics: Theory, Application, and Systems 2010 (IEEE BTAS ’10), 2010.

Christian Rathgeb, Andreas Uhl, „Iris-Biometric Hash Generation for Biometric Database Indexing“, In Proceedings of the 20th International Conference on Pattern Recognition (ICPR ’10), 2010.

Christian Rathgeb, Andreas Uhl, „Attacking Iris Recognition: An Effcient Hill-Climbing Technique“, In Proceedings of the 20th International Conference on Pattern Recognition (ICPR ’10), 2010.

Christian Rathgeb, Andreas Uhl, „Systematic construction of iris-based fuzzy commitment schemes“, In Proceedings of the 3rd International Conference on Biometrics 2009 (ICB ’09), 2009.