Optics and Precision Engineering, Volume. 31, Issue 14, 2080(2023)

Generate adversarial network for super-resolution reconstruction of remote sensing images by fusing edge enhancement and non-local modules

Jie LIU1,*... Ruo QI1 and Ke HAN2 |Show fewer author(s)
Author Affiliations
  • 1College of Measurement and Control Technology and Communication Engineering, Harbin University of Science and Technology, Harbin50080, China
  • 2School of Computer and Information Engineering, Harbin University of Commerce, Harbin15008, China
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    To address the serious noise pollution in the process of image remote sensing and the existence of object edge blur and artifacts in the super-resolution reconstructed image, this study proposes a remote sensing image super-resolution algorithm called edge-enhanced and non-local modules generative adversarial network (ENGAN). To make the image edge details clearer, the proposed algorithm integrated an image edge enhancement module. To further expand the receptive field of the model and enhance the edge noise removal, the Mask branch in the edge enhancement module was simultaneously improved. The use of the intrinsic feature correlation of images further improved the reconstruction performance of the network. In this study, comparison experiments of multiple algorithms were performed on two remote sensing image datasets, UCAS-AOD and NWPU VHR-10. The proposed method showed improvement in multiple evaluation indicators. Taking degradation type IV as an example, the 4x super-resolution SSIM was increased by 0.068, PSNR increased by 1.400 dB, and RMSE reduced by 12.5% compared with the deep-blind super-resolution degradation model. Moreover, the reconstructed remote sensing image can obtain better ground target detection results than the original image.

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    Jie LIU, Ruo QI, Ke HAN. Generate adversarial network for super-resolution reconstruction of remote sensing images by fusing edge enhancement and non-local modules[J]. Optics and Precision Engineering, 2023, 31(14): 2080

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    Paper Information

    Category: Information Sciences

    Received: Jul. 30, 2022

    Accepted: --

    Published Online: Aug. 2, 2023

    The Author Email: LIU Jie (liujie@hrbust.edu.cn)

    DOI:10.37188/OPE.20233114.2080

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