collaborators

7 papers

cs.CV2026

PreFIQs: Face Image Quality Is What Survives Pruning

Jan Niklas Kolf, Guray Ozgur, Andrea Atzori +4

Face Image Quality Assessment (FIQA) evaluates the utility of a face image for automated face recognition (FR) systems. In this work, we propose PreFIQs, an unsupervised and traini…

cs.CV2026

EX-FIQA: Leveraging Intermediate Early eXit Representations from Vision Transformers for Face Image Quality Assessment

Guray Ozgur, Tahar Chettaoui, Eduarda Caldeira +4

Face Image Quality Assessment is crucial for reliable face recognition systems, yet existing Vision Transformer-based approaches rely exclusively on final-layer representations, ig…

cs.CV2026

ATTN-FIQA: Interpretable Attention-based Face Image Quality Assessment with Vision Transformers

Guray Ozgur, Tahar Chettaoui, Eduarda Caldeira +5

Face Image Quality Assessment (FIQA) aims to assess the recognition utility of face samples and is essential for reliable face recognition (FR) systems. Existing approaches require…

cs.CV2026

BLENDER: Blended Text Embeddings and Diffusion Residuals for Intra-Class Image Synthesis in Deep Metric Learning

Jan Niklas Kolf, Ozan Tezcan, Justin Theiss +7

The rise of Deep Generative Models (DGM) has enabled the generation of high-quality synthetic data. When used to augment authentic data in Deep Metric Learning (DML), these synthet…

cs.CV2026

ViTNT-FIQA: Training-Free Face Image Quality Assessment with Vision Transformers

Guray Ozgur, Eduarda Caldeira, Tahar Chettaoui +4

Face Image Quality Assessment (FIQA) is essential for reliable face recognition systems. Current approaches primarily exploit only final-layer representations, while training-free…

cs.CV2025

DiffProb: Data Pruning for Face Recognition

Eduarda Caldeira, Jan Niklas Kolf, Naser Damer +1

Face recognition models have made substantial progress due to advances in deep learning and the availability of large-scale datasets. However, reliance on massive annotated dataset…