{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T22:44:28Z","timestamp":1769553868681,"version":"3.49.0"},"reference-count":63,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,12,27]],"date-time":"2022-12-27T00:00:00Z","timestamp":1672099200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Basic Research Strengthening Program of China","award":["2020-JCJQ-ZD-015-00"],"award-info":[{"award-number":["2020-JCJQ-ZD-015-00"]}]},{"name":"Basic Research Strengthening Program of China","award":["42001338"],"award-info":[{"award-number":["42001338"]}]},{"name":"Basic Research Strengthening Program of China","award":["42201492"],"award-info":[{"award-number":["42201492"]}]},{"name":"National Natural Science Foundation of China","award":["2020-JCJQ-ZD-015-00"],"award-info":[{"award-number":["2020-JCJQ-ZD-015-00"]}]},{"name":"National Natural Science Foundation of China","award":["42001338"],"award-info":[{"award-number":["42001338"]}]},{"name":"National Natural Science Foundation of China","award":["42201492"],"award-info":[{"award-number":["42201492"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Heterogeneous images acquired from various platforms and sensors provide complementary information. However, to use that information in applications such as image fusion and change detection, accurate image matching is essential to further process and analyze these heterogeneous images, especially if they have significant differences in radiation and geometric characteristics. Therefore, matching heterogeneous remote sensing images is challenging. To address this issue, we propose a feature point matching method named Cross and Self Attentional Matcher (CSAM) based on Attention mechanisms (algorithms) that have been extensively used in various computer vision-based applications. Specifically, CSAM alternatively uses self-Attention and cross-Attention on the two matching images to exploit feature point location and context information. Then, the feature descriptor is further aggregated to assist CSAM in creating matching point pairs while removing the false matching points. To further improve the training efficiency of CSAM, this paper establishes a new training dataset of heterogeneous images, including 1,000,000 generated image pairs. Extensive experiments indicate that CSAM outperforms the existing feature extraction and matching methods, including SIFT, RIFT, CFOG, NNDR, FSC, GMS, OA-Net, and Superglue, attaining an average precision and processing time of 81.29% and 0.13 s. In addition to higher matching performance and computational efficiency, CSAM has better generalization ability for multimodal image matching and registration tasks.<\/jats:p>","DOI":"10.3390\/rs15010163","type":"journal-article","created":{"date-parts":[[2022,12,28]],"date-time":"2022-12-28T05:30:27Z","timestamp":1672205427000},"page":"163","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Attention-Based Matching Approach for Heterogeneous Remote Sensing Images"],"prefix":"10.3390","volume":"15","author":[{"given":"Huitai","family":"Hou","sequence":"first","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]},{"given":"Chaozhen","family":"Lan","sequence":"additional","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]},{"given":"Qing","family":"Xu","sequence":"additional","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1168-210X","authenticated-orcid":false,"given":"Liang","family":"Lv","sequence":"additional","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]},{"given":"Xin","family":"Xiong","sequence":"additional","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]},{"given":"Fushan","family":"Yao","sequence":"additional","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]},{"given":"Longhao","family":"Wang","sequence":"additional","affiliation":[{"name":"Institute of Geospatial Information, PLA Strategic Support Force Information Engineering University, Zhengzhou 450001, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,27]]},"reference":[{"key":"ref_1","first-page":"657","article-title":"Understanding image fusion","volume":"70","author":"Zhang","year":"2004","journal-title":"Photogramm. 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