Colored Noise Sampling: dyeing injected noise to boost diffusion sample quality

serrjoa · x · 2026-09-27

Researchers introduce Colored Noise Sampling (CNS): instead of injecting white noise, the SDE sampler exploits the inherent spectral bias of diffusion models, dynamically coloring the injected noise to focus on frequencies where details are missing.

The authors report substantially improved FID, in a 9-part technical thread.

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