Laser & Optoelectronics Progress, Volume. 62, Issue 16, 1637002(2025)

Lightweight Image Super-Resolution Reconstruction Incorporating Dual-Stream Feature Enhancement

Zhilin Gao, Jintao Wang, Qixiang Meng, and Fanliang Bu*
Author Affiliations
  • School of Information Network Security, People's Public Security University of China, Beijing 100038, China
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    In recent years, the Transformer has demonstrated remarkable performance in image super-resolution tasks, attributed to its powerful ability to capture global features using a self-attention mechanism. However, this mechanism has high computational demands and is limited in its ability to capture local features. To address these challenges, this study proposes a lightweight image super-resolution reconstruction network based on dual-stream feature enhancement. This network incorporates a dual-stream feature enhancement module designed to enhance reconstruction performance through the effective capture and fusion of both global and local image information. In addition, a lightweight feature distillation module is introduced, which employs shift operations to expand the convolutional kernel's field of view, significantly reducing network parameters. The experimental results show that the proposed method outperforms traditional convolution-based reconstruction networks in terms of both subjective visual quality and objective metrics. Furthermore, compared to Transformer-based reconstruction networks such as SwinIR-Light and NGswin, the proposed method achieves an average improvement of 0.06 dB and 0.14 dB in PSNR, respectively.

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    Zhilin Gao, Jintao Wang, Qixiang Meng, Fanliang Bu. Lightweight Image Super-Resolution Reconstruction Incorporating Dual-Stream Feature Enhancement[J]. Laser & Optoelectronics Progress, 2025, 62(16): 1637002

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    Paper Information

    Category: Digital Image Processing

    Received: Jan. 3, 2025

    Accepted: Mar. 11, 2025

    Published Online: Aug. 6, 2025

    The Author Email: Fanliang Bu (20051257@ppsuc.edu.cn)

    DOI:10.3788/LOP250444

    CSTR:32186.14.LOP250444

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