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
Oct 16

Beyond Generation: Using Multimodal LLMs as Detectors of LLM-Generated Deepfake Facial Images

The paper evaluates whether multimodal large language models (MLLMs) can serve as forensic detectors of deepfake facial images. Six MLLMs—including GPT-4o, GPT-5, GPT-5.2, Gemini 2.5, Gemini 3, and Seed 1.6—were tested on a dataset of 400 images (50 authentic and 350 synthetic) generated by seven leading image models. Results show that several MLLMs achieve high detection accuracy, with GPT-5.2 reaching 97.9% in pairwise comparisons, but the presence of invisible SynthID watermarks can reduce detection performance by about 10% for Gemini.

By Olivia Salamon, Virginia N. L. Franqueira, Shujun Li
arXiv AI
Sep 3

Swin Meets EfficientNet: Lightweight Architectures for GAN-Based Face Forensics

The paper presents lightweight architectures for detecting GAN-generated synthetic faces, comparing a compact Swin Transformer, pre‑trained Swin‑Tiny and Swin‑Small models, and a hybrid EfficientNet‑B0 + Swin Transformer. Using the 140K Real and Fake Faces dataset, the hybrid model achieved 99% accuracy and 99.44% recall on 5,000 test images, outperforming both pure Swin variants and a CNN‑only baseline. The study demonstrates that combining hierarchical CNN features with shifted‑window self‑attention yields an efficient, computationally lightweight detection method.

By Sejuti Basu, Ashima Sood, Vijay Kumar, Sahil Sharma
arXiv AI
Oct 27

A Computer Vision Approach to Visual Fraud Detection in Phishing Websites Using YOLOv8

The paper presents a visual phishing detection system that treats rendered webpages as images, using a YOLOv8 convolutional neural network to classify full-page screenshots as phishing or legitimate. It achieves 92% accuracy, processes a screenshot in about 100 ms, and reduces false positives by 11% after targeted data augmentation. The authors detail dataset creation, augmentation, model architecture, training, and discuss how this visual approach complements existing URL- and content-based defenses.

By Basil Sajid Shaikh