GLID: Gated Local Intrinsic Dimension Repairs the Blind Spots of Face-Forgery Detectors

Fine-tuned foundation-model detectors dominate face-forgery benchmarks, yet they stay blind to generator families absent from training. We present GLID, a detector that repairs this blind spot with geometry instead of data. GLID treats the patch tokens of a single image as a sample from a manifold a...