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A Lightweight Local-Global Attention Network for Single Image Super-Resolution

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Computer Vision – ACCV 2022 (ACCV 2022)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 13846))

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Abstract

For a given image, the self-attention mechanism aims to capture dependencies for each pixel. It has been proved that the performance of neural networks which employ self-attention is superior in various image processing tasks. However, the performance of self-attention has extensively correlated with the amount of computation. The vast majority of works tend to use local attention to capture local information to reduce the amount of calculation when using self-attention. The ability to capture information from the entire image is easily weakened on this occasion. In this paper, a local-global attention block (LGAB) is proposed to enhance both the local features and global features with low calculation complexity. To verify the performance of LGAB, a lightweight local-global attention network (LGAN) for single image super-resolution (SISR) is proposed and evaluated. Compared with other lightweight state-of-the-arts (SOTAs) of SISR, the superiority of our LGAN is demonstrated by extensive experimental results. The source code can be found at https://github.com/songzijiang/LGAN.

This work was supported in part by the Natural Science Foundation of the Jiangsu Higher Education Institutions of China under Grant 21KJA520007, in part by the National Natural Science Foundation of China under Grant 61572341, in part by the Priority Academic Program Development of Jiangsu Higher Education Institutions, in part by Collaborative Innovation Center of Novel Software Technology and Industrialization.

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Notes

  1. 1.

    https://github.com/xindongzhang/ELAN.

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Correspondence to Baojiang Zhong .

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Song, Z., Zhong, B. (2023). A Lightweight Local-Global Attention Network for Single Image Super-Resolution. In: Wang, L., Gall, J., Chin, TJ., Sato, I., Chellappa, R. (eds) Computer Vision – ACCV 2022. ACCV 2022. Lecture Notes in Computer Science, vol 13846. Springer, Cham. https://doi.org/10.1007/978-3-031-26351-4_37

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  • DOI: https://doi.org/10.1007/978-3-031-26351-4_37

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