Cited by 7,870Advanced Image Processing TechniquesAdvanced Neural Network ApplicationsImage and Signal Denoising Methods

Accurate Image Super-Resolution Using Very Deep Convolutional Networks

Open access
Kim, Jiwon, Lee, Jung Kwon, Lee, Kyoung Mu·2016·2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)

Abstract

We present a highly accurate single-image superresolution (SR) method. Our method uses a very deep convolutional network inspired by VGG-net used for ImageNet classification [19]. We find increasing our network depth shows a significant improvement in accuracy. Our final model uses 20 weight layers. By cascading small filters many times in a deep network structure, contextual information over large image regions is exploited in an efficient way. With very deep networks, however, convergence speed becomes a critical issue during training. We propose a simple yet effective training procedure. We learn residuals only and use extremely high learning rates (104 times higher than SRCNN [6]) enabled by adjustable gradient clipping. Our proposed method performs better than existing methods in accuracy and visual improvements in our results are easily noticeable.

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Registry

Crossref · 10.1109/cvpr.2016.182

Cites

26 of 26 references verified0 citation errors · 0 not checkable

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  • SRCNN and VDSR are trained with bicubic blur kernel.

    “Note that SRCNN and VDSR are trained with bicubic blur kernel, thus it is unfair to use their models to super-resolve the low-resolution image with Gaussian kernel.”

    From Learning Deep CNN Denoiser Prior for Image Restoration (2017) · cites this paper as [35]

  • The FBPConvNet training clips the computed gradients to a fixed range to prevent the divergence of the cost function.

    “We clip the computed gradients to a fixed range to prevent the divergence of the cost function [27], [46].”

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Authors
Kim, J., Lee, J. K., & Lee, K. M.
Affiliations
Seoul National University (KR)
Venue
2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Publisher
IEEE
Published
2016-06
Pages
1646-1654
ISSN
1063-6919 (ISSN-L)
OpenAlex
W2242218935
Cited by
7,870
References
26
Citations by year
2026: 395 · 2025: 814 · 2024: 967 · 2023: 1009 · 2022: 966 · 2021: 1065 · 2020: 996 · 2019: 889 · 2018: 523 · 2017: 220 · 2016: 26
FWCI
191.69
Type
conference paper
Language
en
Open access
Locations
  • IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Image Processing Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Image and Signal Denoising Methods
Keywords
single image super-resolution, network depth, residual learning, gradient clipping, training convergence

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