Abstract
Recently, single hyperspectral image super-resolution (SR) methods based on deep learning have been extensively studied. However, there has been limited technical development focusing on single hyperspectral image super-resolution due to the high-dimensional and complex spectral patterns in hyperspectral image. Besides, most existing methods can not effectively explore spatial information and spectral information of hyperspectral image, obtaining relatively low performance. To address these issues, in this paper, we propose a novel spatial-spectral deep residual network (SSDRN) for hyperspectral image super-resolution. To fully exploit the spectral information and spatial correlation characteristics in hyperspectral data, we use residual group (RG) to extract features effectively, which consists of the proposed spatial-spectral residual attention block (SSRAB). Furthermore, we present a upsampling reconstruction module (UP) to utilize the deep features of previously obtained low-resolution hyperspectral image. Then we could learn the nonlinear mapping relationship between low resolution and high resolution to obtain the desired high-resolution hyperspectral image. Experimental results on two benchmark datasets demonstrate that the proposed approach achieves superior performance in comparison to existing state-of-the-art methods.
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This work was supported by the Industry University Research Innovation Fund of Chinese Universities (2021ALA02009).
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WeiFa Zheng declares that he has no conflict of interest. ZiXin Xie declares that he has no conflict of interest.
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Zheng, W., Xie, Z. Spatial-Spectral Deep Residual Network for Hyperspectral Image Super-Resolution. SN COMPUT. SCI. 4, 424 (2023). https://doi.org/10.1007/s42979-023-01868-0
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DOI: https://doi.org/10.1007/s42979-023-01868-0