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Super-resolution technology is introduced to conquer such a dilemma. It is a challenging task due to the variations in object size and textures in remote sensing images. To address that problem, we present SymSwin, a super-resolution model based on the Swin transformer aimed to capture a multi-scale context. The symmetric multi-scale window (SyMW) mechanism is proposed and integrated in the backbone, which is capable of perceiving features with various sizes. First, the SyMW mechanism is proposed to capture discriminative contextual features from multi-scale presentations using corresponding attentive window size. Subsequently, a cross-receptive field-adaptive attention (CRAA) module is introduced to model the relations among multi-scale contexts and to realize adaptive fusion. Furthermore, RS data exhibit poor spatial resolution, leading to insufficient visual information when merely spatial supervision is applied. Therefore, a U-shape wavelet transform (UWT) loss is proposed to facilitate the training process from the frequency domain. Extensive experiments demonstrate that our method achieves superior performance in both quantitative metrics and visual quality compared with existing algorithms.<\/jats:p>","DOI":"10.3390\/rs16244734","type":"journal-article","created":{"date-parts":[[2024,12,18]],"date-time":"2024-12-18T11:17:22Z","timestamp":1734520642000},"page":"4734","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["SymSwin: Multi-Scale-Aware Super-Resolution of Remote Sensing Images Based on Swin Transformers"],"prefix":"10.3390","volume":"16","author":[{"given":"Dian","family":"Jiao","sequence":"first","affiliation":[{"name":"College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9601-536X","authenticated-orcid":false,"given":"Nan","family":"Su","sequence":"additional","affiliation":[{"name":"College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China"},{"name":"Key Laboratory of Advanced Marine Communication and Information Technology, Harbin Engineering University, Ministry of Industry and Information Technology, Harbin 150001, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0751-7726","authenticated-orcid":false,"given":"Yiming","family":"Yan","sequence":"additional","affiliation":[{"name":"College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China"},{"name":"Key Laboratory of Advanced Marine Communication and Information Technology, Harbin Engineering University, Ministry of Industry and Information Technology, Harbin 150001, China"}]},{"given":"Ying","family":"Liang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space-Earth Integrated Information Technology, Beijing Institute of Satellite, Information Engineering, Beijing 100095, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7308-9590","authenticated-orcid":false,"given":"Shou","family":"Feng","sequence":"additional","affiliation":[{"name":"College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China"},{"name":"Key Laboratory of Advanced Marine Communication and Information Technology, Harbin Engineering University, Ministry of Industry and Information Technology, Harbin 150001, China"}]},{"given":"Chunhui","family":"Zhao","sequence":"additional","affiliation":[{"name":"College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China"},{"name":"Key Laboratory of Advanced Marine Communication and Information Technology, Harbin Engineering University, Ministry of Industry and Information Technology, Harbin 150001, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2614-8850","authenticated-orcid":false,"given":"Guangjun","family":"He","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space-Earth Integrated Information Technology, Beijing Institute of Satellite, Information Engineering, Beijing 100095, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,12,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Wang, X., Yi, J., Guo, J., Song, Y., Lyu, J., Xu, J., Yan, W., Zhao, J., Cai, Q., and Min, H. 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