arXiv Computer Vision

Decoupled Representation Learning for Face Presentation Attack Detection under Smart Glass Capture

arXiv Computer Vision
Aug 28

FIDA: Feature Instability-Driven Attack on Self-Supervised Facial Representation

FIDA (Feature Instability-Driven Attack) is a new backdoor attack framework targeting self‑supervised facial representation models. It employs subtle semantic triggers and a novel Feature Instability Loss that trains the encoder to heighten sensitivity of triggered features along perturbation directions, thereby avoiding the rigid feature patterns seen in prior attacks. Experiments demonstrate that FIDA achieves high attack success while largely preserving benign utility, exposing a significant threat to real‑world facial analysis applications.

By Zhiyang Chen, Changchun Yin, Huiqin Yang, Liming Fang
arXiv Computer Vision
Oct 21

Only Train Once: Uncertainty-Aware One-Class Learning for Face Authenticity Detection

The paper introduces FADNet, a face authenticity detector that treats forgery detection as a one‑class classification problem, training only on authentic faces. It uses Evidential Deep Learning to measure uncertainty and a pseudo‑forgery generator to sharpen decision boundaries. Experiments on DF40 and ASFD show FADNet surpasses state‑of‑the‑art methods with 96.63% accuracy and 98.83% precision.

By Qingchao Jiang, Zhenxuan Hou, Zhiying Zhu, Zhenxing Qian, Xinpeng Zhang, Zaiwang Gu
arXiv Computer Vision
Aug 27

Learning to Detect Unseen Jailbreak Attacks in Large Vision-Language Models

The paper introduces Learning to Detect (LoD), a framework for identifying unseen jailbreak attacks in Large Vision‑Language Models without relying on attack data or hand‑crafted heuristics. LoD extracts layer‑wise safety representations via Multi‑modal Safety Concept Activation Vectors and compresses them into a one‑dimensional anomaly score using a Safety Pattern Auto‑Encoder. Experiments show that LoD achieves state‑of‑the‑art AUROC across diverse unseen attacks on multiple LVLMs while improving efficiency.

By Shuang Liang, Zhihao Xu, Jiaqi Weng, Jialing Tao, Hui Xue, Xiting Wang
arXiv AI
2d ago

A Bag of Tricks for Defending Deep Learning-based Face Recognition Pipelines against Backdoor Attacks

The paper presents three practical defense tricks to protect deep learning-based face recognition pipelines from backdoor attacks that arise when training data is sourced from potentially compromised third parties. The first trick operates during training to detect poisoned identities before deployment, while the other two work at inference time to filter suspicious inputs. Each method is described with its motivation, algorithm, computational impact, and evaluated on realistic face recognition workloads.

By Quentin Le Roux, Marti Jimenez, Yannick Teglia, Philippe Loubet Moundi
Hugging Face Trending Papers
Jul 23

DINO-VPT: Hierarchical Visual Prompt Tuning for Joint Physical-Digital Face Anti-Spoofing

With the increasing diversity of spoofing attacks, there is a growing demand for unified Face Anti-Spoofing (FAS) models capable of detecting both physical and digital threats. While existing Vision-Language Models (VLMs) demonstrate high generalization in this context, they heavily rely on complex multimodal fusion and external text encoders.