MambaSR: Arbitrary-Scale Super-Resolution Integrating Mamba with Fast Fourier Convolution Blocks

Jin Yan, Zongren Chen, Zhiyuan Pei, Xiaoping Lu () and Hua Zheng
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Jin Yan: School of Computer Science and Engineering, Macau University of Science and Technology, Macao 999078, China
Zongren Chen: School of Computer Science and Engineering, Macau University of Science and Technology, Macao 999078, China
Zhiyuan Pei: School of Computer Science and Engineering, Macau University of Science and Technology, Macao 999078, China
Xiaoping Lu: School of Computer Science and Engineering, Macau University of Science and Technology, Macao 999078, China
Hua Zheng: School of Mathematics and Statistics, Shaoguan University, Shaoguan 512005, China

Mathematics, 2024, vol. 12, issue 15, 1-21

Abstract: Traditional single image super-resolution (SISR) methods, which focus on integer scale super-resolution, often require separate training for each scale factor, leading to increased computational resource consumption. In this paper, we propose MambaSR, a novel arbitrary-scale super-resolution approach integrating Mamba with Fast Fourier Convolution Blocks. MambaSR leverages the strengths of the Mamba state-space model to extract long-range dependencies. In addition, Fast Fourier Convolution Blocks are proposed to capture the global information in the frequency domain. The experimental results demonstrate that MambaSR achieves superior performance compared to different methods across various benchmark datasets. Specifically, on the Urban100 dataset, MambaSR outperforms MetaSR by 0.93 dB in PSNR and 0.0203 dB in SSIM, and on the Manga109 dataset, it achieves an average PSNR improvement of 1.00 dB and an SSIM improvement of 0.0093 dB. These results highlight the efficacy of MambaSR in enhancing image quality for arbitrary-scale super-resolution.

Keywords: super-resolution; fast Fourier transform; state-space model; Mamba (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
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