MAP-Mamba: Multi-Artifacts Perception Mamba for Generalizable Face Forgery Detection

Face forgery detection suffers from cross-dataset generalization challenges, where performance degradation occurs due to distribution shifts between training and testing data. Recently, pseudo-fake face generation strategy has mitigated models overfitting to specific forgery traces. However, detectors based on this strategy exhibit an overreliance on blending boundary artifacts for their classification decisions. This overreliance significantly limits their ability to generalize to more advanced face manipulation algorithms, such as FaceDancer and InSwap, which are designed to produce smooth and natural transitions in the blending boundary region. To address this, we propose MAP-Mamba, a novel Multi-Artifacts Perception Mamba framework for modeling generalizable artifact representations from “Generation” to “Enrichment” to “Strengthening”. First, we design an attribute-level face blending method that generate pseudo-fake faces containing fine-grained artifacts via three attribute generators. These pseudo-fakes mimic subtle local inconsistencies in advanced forgery algorithms, guiding the MAP-Mamba to learn diverse forgery features beyond the blending boundary artifacts. Second, considering the variability of face artifacts distribution caused by different forgery algorithms, an artifact style mixing strategy is designed to enrich the artifact style distribution in the training phase by mixing and reorganizing the artifact style features, and to enhance the model’s ability to handle unknown forgery methods. Finally, an adaptive artifact guidance mechanism is proposed to dynamically amplify the artifact-related feature to further strengthen the model’s sensitivity to key artifacts. Extensive experiments on several benchmarks show that MAP-Mamba achieves superior robustness and generalization performance.