Zero-Shot Image Restoration Using Denoising Diffusion Null-Space Model
On the map: Diffusion models → Inverse problems and image restoration
Abstract (arXiv)
Most existing Image Restoration (IR) models are task-specific, which can not be generalized to different degradation operators. In this work, we propose the Denoising Diffusion Null-Space Model (DDNM), a novel zero-shot framework for arbitrary linear IR problems, including but not limited to image super-resolution, colorization, inpainting, compressed sensing, and deblurring. DDNM only needs a pre-trained off-the-shelf diffusion model as the generative prior, without any extra training or network modifications. By refining only the null-space contents during the reverse diffusion process, we can yield diverse results satisfying both data consistency and realness. We further propose an enhanced and robust version, dubbed DDNM+, to support noisy restoration and improve restoration quality for hard tasks. Our experiments on several IR tasks reveal that DDNM outperforms other state-of-the-art zero-shot IR methods. We also demonstrate that DDNM+ can solve complex real-world applications, e.g., old photo restoration.
Key facts. Cited by 574 papers in the map (data through 7 Oct 2026). Placed in Inverse problems and image restoration, one of 14 directions in Diffusion models. Builds on 34 of its 44 references that are in the map. First posted on arXiv 1 Dec 2022.
Builds on
34 of 44 references.
Closest ancestors · 4
Same direction, newest first
- 2022Diffusion Posterior Sampling for General Noisy Inverse Problems29 Sep
- 2022Improving Diffusion Models for Inverse Problems using Manifold Constraints2 Jun
- 2022Denoising Diffusion Restoration Models27 Jan
- 2021Deblurring via Stochastic Refinement5 Dec
Other references · 30
- 2020Denoising Diffusion Probabilistic Modelscited by 20,851
- 2020Denoising Diffusion Implicit Modelscited by 9,655
- 2020Score-Based Generative Modeling through Stochastic Differential Equationscited by 8,964
- 2021Diffusion Models Beat GANs on Image Synthesiscited by 8,185
- 2018A Style-Based Generator Architecture for Generative Adversarial Networkscited by 5,986
- 2022Generative Adversarial Networkscited by 5,603
- 2017Neural Discrete Representation Learningcited by 4,650
- 2019Generative Modeling by Estimating Gradients of the Data Distributioncited by 4,067
- 2013Auto-Encoding Variational Bayescited by 3,980
- 2019Analyzing and Improving the Image Quality of StyleGANcited by 3,580
- 2022Video Diffusion Modelscited by 2,280
- 2021SwinIR: Image Restoration Using Swin Transformercited by 1,869
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- 2021Image Super-Resolution via Iterative Refinementcited by 1,506
- 2022RePaint: Inpainting using Denoising Diffusion Probabilistic Modelscited by 1,419
- 2021Palette: Image-to-Image Diffusion Modelscited by 1,296
- 2014Image Super-Resolution Using Deep Convolutional Networkscited by 1,218
- 2021Alias-Free Generative Adversarial Networkscited by 1,181
- 2021ILVR: Conditioning Method for Denoising Diffusion Probabilistic Modelscited by 634
- 2021Designing a Practical Degradation Model for Deep Blind Image Super-Resolutioncited by 524
- 2021Solving Inverse Problems in Medical Imaging with Score-Based Generative Modelscited by 514
- 2020PULSE: Self-Supervised Photo Upsampling via Latent Space Exploration of Generative Modelscited by 358
- 2021Towards Real-World Blind Face Restoration with Generative Facial Priorcited by 347
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- 2020Exploiting Deep Generative Prior for Versatile Image Restoration and Manipulationcited by 225
- 2021GAN Prior Embedded Network for Blind Face Restoration in the Wildcited by 197
- 2020GLEAN: Generative Latent Bank for Large-Factor Image Super-Resolutioncited by 158
- 2019Explorable Super Resolutioncited by 44
- 2019Deep Decomposition Learning for Inverse Imaging Problemscited by 25
- 2022GAN Prior based Null-Space Learning for Consistent Super-Resolutioncited by 22
- 2022Panini-Net: GAN Prior Based Degradation-Aware Feature Interpolation for Face Restorationcited by 12
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Citing papers per year: 2022: 1; 2023: 102; 2024: 191; 2025: 158; 2026: 122.
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