DBINDS - Can Initial Noise from Diffusion Model Inversion Help Reveal AI-Generated Videos?

• URL: http://arxiv.org/abs/2511.09184v1
• Date: Thu, 13 Nov 2025 01:37:58 GMT
• Title: DBINDS - Can Initial Noise from Diffusion Model Inversion Help Reveal AI-Generated Videos?
• Abstract summary: We propose DBINDS, a diffusion-model-inversion based detector that analyzes latent-space dynamics rather than pixels.<n>We find that initial noise sequences recovered by diffusion inversion differ systematically between real and generated videos.<n>With feature optimization and a LightGBM tuned by Bayesian search, DBINDS achieves strong cross-generator performance on GenVidBench.
• Score: 3.94169897749583
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: AI-generated video has advanced rapidly and poses serious challenges to content security and forensic analysis. Existing detectors rely mainly on pixel-level visual cues and generalize poorly to unseen generators. We propose DBINDS, a diffusion-model-inversion based detector that analyzes latent-space dynamics rather than pixels. We find that initial noise sequences recovered by diffusion inversion differ systematically between real and generated videos. Building on this, DBINDS forms an Initial Noise Difference Sequence (INDS) and extracts multi-domain, multi-scale features. With feature optimization and a LightGBM classifier tuned by Bayesian search, DBINDS (trained on a single generator) achieves strong cross-generator performance on GenVidBench, demonstrating good generalization and robustness in limited-data settings.

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