Residual Denoising Diffusion Models

arXiv:2308.13712v3 Announce Type: replace-cross
Abstract: We propose residual denoising diffusion models (RDDM), a novel dual diffusion process that decouples the traditional single denoising diffusion process into residual diffusion and noise diffusion. This dual diffusion framework expands the denoising-based diffusion models, initially uninterpretable for image restoration, into a unified and interpretable model for both image generation and restoration by introducing residuals. Specifically, our residual diffusion represents directional diffusion from the target image to the degraded input image and explicitly guides the …

arxiv cs.cv cs.lg denoising diffusion diffusion models residual type