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Jul 23, 2021

ArbSR

[arXiv]

  • A plug-in module to extend a baseline SR network (e.g., EDSR and RCAN) to a scale-arbitrary SR network with small additional computational and memory cost.
  • Promising results for scale-arbitrary SR (both non-integer and asymmetric scale factors) while maintaining the state-of-the-art performance for SR with integer scale factors.

Demo

gif

Motivation

Although recent CNN-based single image SR networks (e.g., EDSR, RDN and RCAN) have achieved promising performance, they are developed for image SR with a single specific integer scale (e.g., x2, x3, x4). In real-world applications, non-integer SR (e.g., from 100x100 to 220x220) and asymmetric SR (e.g., from 100x100 to 220x420) are also necessary such that customers can zoom in an image arbitrarily for better view of details.

Overview

overview

Visual Results

non-integer

asymmetric

Citation

@InProceedings{Wang2020Learning,
  title={Learning A Single Network for Scale-Arbitrary Super-Resolution},
  author={Longguang Wang, Yingqian Wang, Zaiping Lin, Jungang Yang, Wei An, and Yulan Guo},
  booktitle={ICCV},
  year={2021}
}

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[ICCV 2021] Learning A Single Network for Scale-Arbitrary Super-Resolution

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