Multiscale Adaptive Conflict-Balancing Model For Multimedia Deepfake Detection

• URL: http://arxiv.org/abs/2505.12966v1
• Date: Mon, 19 May 2025 11:01:49 GMT
• Title: Multiscale Adaptive Conflict-Balancing Model For Multimedia Deepfake Detection
• Authors: Zihan Xiong, Xiaohua Wu, Lei Chen, Fangqi Lou,
• Abstract summary: multimodal detection methods remain limited by unbalanced learning between modalities.<n>We propose an Audio-Visual Joint Learning Method (MACB-DF) to better mitigate modality conflicts and neglect.<n>Our method exhibits superior cross-dataset generalization capabilities, with absolute improvements of 8.0% and 7.7% in ACC scores over the previous best-performing approach.
• Score: 4.849608823153888
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Advances in computer vision and deep learning have blurred the line between deepfakes and authentic media, undermining multimedia credibility through audio-visual forgery. Current multimodal detection methods remain limited by unbalanced learning between modalities. To tackle this issue, we propose an Audio-Visual Joint Learning Method (MACB-DF) to better mitigate modality conflicts and neglect by leveraging contrastive learning to assist in multi-level and cross-modal fusion, thereby fully balancing and exploiting information from each modality. Additionally, we designed an orthogonalization-multimodal pareto module that preserves unimodal information while addressing gradient conflicts in audio-video encoders caused by differing optimization targets of the loss functions. Extensive experiments and ablation studies conducted on mainstream deepfake datasets demonstrate consistent performance gains of our model across key evaluation metrics, achieving an average accuracy of 95.5% across multiple datasets. Notably, our method exhibits superior cross-dataset generalization capabilities, with absolute improvements of 8.0% and 7.7% in ACC scores over the previous best-performing approach when trained on DFDC and tested on DefakeAVMiT and FakeAVCeleb datasets.

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