Cited by 42Image and Signal Denoising MethodsImage Enhancement TechniquesAdvanced Image Processing Techniques

Stochastic Image Denoising by Sampling from the Posterior Distribution

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Kawar, Bahjat, Vaksman, Gregory, Elad, Michael·2021·2021 IEEE/CVF International Conference on Computer Vision Workshops (ICCVW)

Abstract

Image denoising is a well-known and well studied problem, commonly targeting a minimization of the mean squared error (MSE) between the outcome and the original image. Unfortunately, especially for severe noise levels, such Minimum MSE (MMSE) solutions may lead to blurry output images. In this work we propose a novel stochastic denoising approach that produces viable and high perceptual quality results, while maintaining a small MSE. Our method employs Langevin dynamics that relies on a repeated application of any given MMSE denoiser, obtaining the reconstructed image by effectively sampling from the posterior distribution. Due to its stochasticity, the proposed algorithm can produce a variety of high-quality outputs for a given noisy input, all shown to be legitimate denoising results. In addition, we present an extension of our algorithm for handling the inpainting problem, recovering missing pixels while removing noise from partially given data.

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Research works printed but not linked: 4

  1. [5][5] Yuval Bahat and Tomer Michaeli. Explorable super resolu- tion. In Proceedings of the IEEE/CVF Conference on Com- puter Vision and Pattern Recognition, pages 2716–2725, 2020.
  2. [8][8] Yochai Blau and Tomer Michaeli. The perception-distortion tradeoff. arXiv preprint arXiv:1711.06077, 2017. · arXiv
  3. [22][22] Jonathan Ho, Ajay Jain, and Pieter Abbeel. Denoising diffu- sion probabilistic models. Advances in Neural Information Processing Systems, 33, 2020.
  4. [27][27] Qi Lei, Ajil Jalal, Inderjit S Dhillon, and Alexandros G Di- makis. Inverting deep generative models, one layer at a time. In Advances in Neural Information Processing Sys- tems, pages 13910–13919, 2019.

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Authors
Kawar, B., Vaksman, G., & Elad, M.
Affiliations
Technion – Israel Institute of Technology (IL)
Venue
2021 IEEE/CVF International Conference on Computer Vision Workshops (ICCVW)
Publisher
IEEE
Published
2021-10
Pages
1866-1875
ISSN
2473-9936 (ISSN-L)
OpenAlex
W3124183862
Cited by
42
References
59
Citations by year
2026: 2 · 2025: 7 · 2024: 13 · 2023: 10 · 2022: 6 · 2021: 4
FWCI
2.70
Type
conference paper
Language
en
Open access
Locations
  • IEEE International Conference on Computer Vision Workshops (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Image and Signal Denoising Methods
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Image Enhancement Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Image Processing Techniques
Keywords
image denoising, Langevin dynamics, posterior sampling, image inpainting, perceptual image quality, noise reduction

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