Dual-domain Modulation Network for Lightweight Image Super-Resolution

Fuente: arXiv
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Auteurs principaux: Li, Wenjie, Guo, Heng, Hou, Yuefeng, Gao, Guangwei, Ma, Zhanyu
Format: Preprint
Publié: 2025
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author Li, Wenjie
Guo, Heng
Hou, Yuefeng
Gao, Guangwei
Ma, Zhanyu
author_facet Li, Wenjie
Guo, Heng
Hou, Yuefeng
Gao, Guangwei
Ma, Zhanyu
contents Lightweight image super-resolution (SR) aims to reconstruct high-resolution images from low-resolution images under limited computational costs. We find that existing frequency-based SR methods cannot balance the reconstruction of overall structures and high-frequency parts. Meanwhile, these methods are inefficient for handling frequency features and unsuitable for lightweight SR. In this paper, we show that introducing both wavelet and Fourier information allows our model to consider both high-frequency features and overall SR structure reconstruction while reducing costs. Specifically, we propose a Dual-domain Modulation Network that integrates both wavelet and Fourier information for enhanced frequency modeling. Unlike existing methods that rely on a single frequency representation, our design combines wavelet-domain modulation via a Wavelet-domain Modulation Transformer (WMT) with global Fourier supervision, enabling complementary spectral learning well-suited for lightweight SR. Experimental results show that our method achieves a comparable PSNR to SRFormer and MambaIR while with less than 50\% and 60\% of their FLOPs and achieving inference speeds 15.4x and 5.4x faster, respectively, demonstrating the effectiveness of our method on SR quality and lightweight. Code link: https://github.com/24wenjie-li/DMNet
format Preprint
id arxiv_https___arxiv_org_abs_2503_10047
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dual-domain Modulation Network for Lightweight Image Super-Resolution
Li, Wenjie
Guo, Heng
Hou, Yuefeng
Gao, Guangwei
Ma, Zhanyu
Image and Video Processing
Computer Vision and Pattern Recognition
Lightweight image super-resolution (SR) aims to reconstruct high-resolution images from low-resolution images under limited computational costs. We find that existing frequency-based SR methods cannot balance the reconstruction of overall structures and high-frequency parts. Meanwhile, these methods are inefficient for handling frequency features and unsuitable for lightweight SR. In this paper, we show that introducing both wavelet and Fourier information allows our model to consider both high-frequency features and overall SR structure reconstruction while reducing costs. Specifically, we propose a Dual-domain Modulation Network that integrates both wavelet and Fourier information for enhanced frequency modeling. Unlike existing methods that rely on a single frequency representation, our design combines wavelet-domain modulation via a Wavelet-domain Modulation Transformer (WMT) with global Fourier supervision, enabling complementary spectral learning well-suited for lightweight SR. Experimental results show that our method achieves a comparable PSNR to SRFormer and MambaIR while with less than 50\% and 60\% of their FLOPs and achieving inference speeds 15.4x and 5.4x faster, respectively, demonstrating the effectiveness of our method on SR quality and lightweight. Code link: https://github.com/24wenjie-li/DMNet
title Dual-domain Modulation Network for Lightweight Image Super-Resolution
topic Image and Video Processing
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.10047