MLLM-Enhanced Face Forgery Detection: A Vision-Language Fusion Solution

• URL: http://arxiv.org/abs/2505.02013v1
• Date: Sun, 04 May 2025 06:58:21 GMT
• Title: MLLM-Enhanced Face Forgery Detection: A Vision-Language Fusion Solution
• Authors: Siran Peng, Zipei Wang, Li Gao, Xiangyu Zhu, Tianshuo Zhang, Ajian Liu, Haoyuan Zhang, Zhen Lei,
• Abstract summary: VLF-FFD is a novel Vision-Language Fusion solution for MLLM-enhanced Face Forgery Detection.<n> EFF++ is a frame-level, explainability-driven extension of the widely used FaceForensics++ dataset.<n>VLF-FFD achieves state-of-the-art (SOTA) performance in both cross-dataset and intra-dataset evaluations.
• Score: 36.79921476565535
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Reliable face forgery detection algorithms are crucial for countering the growing threat of deepfake-driven disinformation. Previous research has demonstrated the potential of Multimodal Large Language Models (MLLMs) in identifying manipulated faces. However, existing methods typically depend on either the Large Language Model (LLM) alone or an external detector to generate classification results, which often leads to sub-optimal integration of visual and textual modalities. In this paper, we propose VLF-FFD, a novel Vision-Language Fusion solution for MLLM-enhanced Face Forgery Detection. Our key contributions are twofold. First, we present EFF++, a frame-level, explainability-driven extension of the widely used FaceForensics++ (FF++) dataset. In EFF++, each manipulated video frame is paired with a textual annotation that describes both the forgery artifacts and the specific manipulation technique applied, enabling more effective and informative MLLM training. Second, we design a Vision-Language Fusion Network (VLF-Net) that promotes bidirectional interaction between visual and textual features, supported by a three-stage training pipeline to fully leverage its potential. VLF-FFD achieves state-of-the-art (SOTA) performance in both cross-dataset and intra-dataset evaluations, underscoring its exceptional effectiveness in face forgery detection.

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