Abstract：To address the challenges of high model complexity and excessive parameter counts in existing image super-resolution(SR) reconstruction methods, a lightweight image SR reconstruction method based on multi-scale spatial adaptive attention network(MSAAN) is proposed. First, a global feature modulation module(GFM) is designed to learn global texture features. Additionally, a lightweight multi-scale feature aggregation module(MFA) is introduced to adaptively aggregate high-frequency spatial features from local to global scales. Second, the multi-scale spatial adaptive attention module(MSAA) is proposed by integrating GFM and MFA. Finally, a feature interactive gated feed-forward module(FIGFF) is incorporated to enhance the local feature extraction capability while reducing the channel redundancy. Extensive experiments demonstrate that MSAAN effectively captures more comprehensive and refined features, significantly improving reconstruction quality while maintaining a lightweight structure.
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2025, Vol. 38 
