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Cited by 760

The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.

Designing a Practical Degradation Model for Deep Blind Image Super-Resolution

Open access
Zhang, Kai, Liang, Jingyun, Van Gool, Luc, Timofte, Radu·2021·2021 IEEE/CVF International Conference on Computer Vision (ICCV)

Abstract

It is widely acknowledged that single image super-resolution (SISR) methods would not perform well if the assumed degradation model deviates from those in real images. Although several degradation models take additional factors into consideration, such as blur, they are still not effective enough to cover the diverse degradations of real images. To address this issue, this paper proposes to design a more complex but practical degradation model that consists of randomly shuffled blur, downsampling and noise degradations. Specifically, the blur is approximated by two convolutions with isotropic and anisotropic Gaussian kernels; the downsampling is randomly chosen from nearest, bilinear and bicubic interpolations; the noise is synthesized by adding Gaussian noise with different noise levels, adopting JPEG compression with different quality factors, and generating processed camera sensor noise via reverse-forward camera image signal processing (ISP) pipeline model and RAW image noise model. To verify the effectiveness of the new degradation model, we have trained a deep blind ES-RGAN super-resolver and then applied it to super-resolve both synthetic and real images with diverse degradations. The experimental results demonstrate that the new degradation model can help to significantly improve the practicability of deep super-resolvers, thus providing a powerful alternative solution for real SISR applications.

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Metadata

Authors
Zhang, K., Liang, J., Van Gool, L., & Timofte, R.
Venue
2021 IEEE/CVF International Conference on Computer Vision (ICCV)
Publisher
IEEE
Published
2021-10
Pages
4771-4780
OpenAlex
W3137506875
Cited by
760
References
57
FWCI
38.46
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: Designing a Practical Degradation Model for Deep Blind Image Super-Resolution. https://app.cochat.ai/papers/10.1109/iccv48922.2021.00475
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Zhang, K., Liang, J., Van Gool, L., & Timofte, R. (2021). Designing a Practical Degradation Model for Deep Blind Image Super-Resolution. 2021 IEEE/CVF International Conference on Computer Vision (ICCV). https://doi.org/10.1109/iccv48922.2021.00475

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