{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T03:12:12Z","timestamp":1775704332104,"version":"3.50.1"},"reference-count":59,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2024,6,24]],"date-time":"2024-06-24T00:00:00Z","timestamp":1719187200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Sciences and Engineering Research Council of Canada (NSERC)","award":["RGPIN-2017-04869"],"award-info":[{"award-number":["RGPIN-2017-04869"]}]},{"name":"Natural Sciences and Engineering Research Council of Canada (NSERC)","award":["DGDND-2017-00078"],"award-info":[{"award-number":["DGDND-2017-00078"]}]},{"name":"Natural Sciences and Engineering Research Council of Canada (NSERC)","award":["RGPAS2017-50794"],"award-info":[{"award-number":["RGPAS2017-50794"]}]},{"name":"Natural Sciences and Engineering Research Council of Canada (NSERC)","award":["RGPIN-2019-06744"],"award-info":[{"award-number":["RGPIN-2019-06744"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Monitoring sea ice in the Arctic region is crucial for polar maritime activities. The Canadian Ice Service (CIS) wants to augment its manual interpretation with machine learning-based approaches due to the increasing data volume received from newly launched synthetic aperture radar (SAR) satellites. However, fully supervised machine learning models require large training datasets, which are usually limited in the sea ice classification field. To address this issue, we propose a semi-supervised interactive system to classify sea ice in dual-pol RADARSAT-2 imagery using limited training samples. First, the SAR image is oversegmented into homogeneous regions. Then, a graph is constructed based on the segmentation results, and the feature set of each node is characterized by a convolutional neural network. Finally, a graph convolutional network (GCN) is employed to classify the whole graph using limited labeled nodes automatically. The proposed method is evaluated on a published dataset. Compared with referenced algorithms, this new method outperforms in both qualitative and quantitative aspects.<\/jats:p>","DOI":"10.3390\/rs16132301","type":"journal-article","created":{"date-parts":[[2024,6,24]],"date-time":"2024-06-24T05:16:18Z","timestamp":1719206178000},"page":"2301","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["IceGCN: An Interactive Sea Ice Classification Pipeline for SAR Imagery Based on Graph Convolutional Network"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0603-8339","authenticated-orcid":false,"given":"Mingzhe","family":"Jiang","sequence":"first","affiliation":[{"name":"Department of System Design Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0649-7284","authenticated-orcid":false,"given":"Xinwei","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Marine Science and Engineering, South China University of Technology, Guangzhou 510641, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3488-5199","authenticated-orcid":false,"given":"Linlin","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Geomatics Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6383-0875","authenticated-orcid":false,"given":"David A.","family":"Clausi","sequence":"additional","affiliation":[{"name":"Department of System Design Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1029\/2011JD015804","article-title":"Estimating the global radiative impact of the sea ice\u2013albedo feedback in the Arctic","volume":"116","author":"Hudson","year":"2011","journal-title":"J. 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