241 citations · 899 across the 75 of their papers we have counts for
15 papers · 2 filters
EGAIN: Extended GAn INversion
Wassim Kabbani, Marcel Grimmer, Christoph Busch
Generative Adversarial Networks (GANs) have witnessed significant advances in recent years, generating increasingly higher quality images, which are non-distinguishable from real o…
General Framework to Evaluate Unlinkability in Biometric Template Protection Systems
Marta Gomez-Barrero, Javier Galbally, Christian Rathgeb +1
The wide deployment of biometric recognition systems in the last two decades has raised privacy concerns regarding the storage and use of biometric data. As a consequence, the ISO/…
Log-Likelihood Score Level Fusion for Improved Cross-Sensor Smartphone Periocular Recognition
Fernando Alonso-Fernandez, Kiran B. Raja, Christoph Busch +1
The proliferation of cameras and personal devices results in a wide variability of imaging conditions, producing large intra-class variations and a significant performance drop whe…
NeutrEx: A 3D Quality Component Measure on Facial Expression Neutrality
Marcel Grimmer, Christian Rathgeb, Raymond Veldhuis +1
Accurate face recognition systems are increasingly important in sensitive applications like border control or migration management. Therefore, it becomes crucial to quantify the qu…
Benchmarking fixed-length Fingerprint Representations across different Embedding Sizes and Sensor Types
Tim Rohwedder, Daile Osorio-Roig, Christian Rathgeb +1
Traditional minutiae-based fingerprint representations consist of a variable-length set of minutiae. This necessitates a more complex comparison causing the drawback of high comput…
Towards minimizing efforts for Morphing Attacks -- Deep embeddings for morphing pair selection and improved Morphing Attack Detection
Roman Kessler, Kiran Raja, Juan Tapia +1
Face Morphing Attacks pose a threat to the security of identity documents, especially with respect to a subsequent access control process, because it enables both individuals invol…
Face Feature Visualisation of Single Morphing Attack Detection
Juan Tapia, Christoph Busch
This paper proposes an explainable visualisation of different face feature extraction algorithms that enable the detection of bona fide and morphing images for single morphing atta…
Flickr-PAD: New Face High-Resolution Presentation Attack Detection Database
Diego Pasmino, Carlos Aravena, Juan Tapia +1
Nowadays, Presentation Attack Detection is a very active research area. Several databases are constituted in the state-of-the-art using images extracted from videos. One of the mai…
A Latent Fingerprint in the Wild Database
Xinwei Liu, Kiran Raja, Renfang Wang +9
Latent fingerprints are among the most important and widely used evidence in crime scenes, digital forensics and law enforcement worldwide. Despite the number of advancements repor…
MCLFIQ: Mobile Contactless Fingerprint Image Quality
Jannis Priesnitz, Axel Weißenfeld, Laurenz Ruzicka +4
We propose MCLFIQ: Mobile Contactless Fingerprint Image Quality, the first quality assessment algorithm for mobile contactless fingerprint samples. To this end, we re-trained the N…
Deep Learning in the Field of Biometric Template Protection: An Overview
Christian Rathgeb, Jascha Kolberg, Andreas Uhl +1
Today, deep learning represents the most popular and successful form of machine learning. Deep learning has revolutionised the field of pattern recognition, including biometric rec…
Considerations on the Evaluation of Biometric Quality Assessment Algorithms
Torsten Schlett, Christian Rathgeb, Juan Tapia +1
Quality assessment algorithms can be used to estimate the utility of a biometric sample for the purpose of biometric recognition. "Error versus Discard Characteristic" (EDC) plots,…
Pose Impact Estimation on Face Recognition using 3D-Aware Synthetic Data with Application to Quality Assessment
Marcel Grimmer, Christian Rathgeb, Christoph Busch
Evaluating the quality of facial images is essential for operating face recognition systems with sufficient accuracy. The recent advances in face quality standardisation (ISO/IEC C…
Benchmarking of Cancelable Biometrics for Deep Templates
Hatef Otroshi Shahreza, Pietro Melzi, Dailé Osorio-Roig +5
In this paper, we benchmark several cancelable biometrics (CB) schemes on different biometric characteristics. We consider BioHashing, Multi-Layer Perceptron (MLP) Hashing, Bloom F…
Effect of Lossy Compression Algorithms on Face Image Quality and Recognition
Torsten Schlett, Sebastian Schachner, Christian Rathgeb +2
Lossy face image compression can degrade the image quality and the utility for the purpose of face recognition. This work investigates the effect of lossy image compression on a st…