{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T08:39:10Z","timestamp":1770539950861,"version":"3.49.0"},"reference-count":65,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2020,11,4]],"date-time":"2020-11-04T00:00:00Z","timestamp":1604448000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>In general, early detection and timely management of plant diseases are essential for reducing yield loss. Traditional manual inspection of fields is often time-consuming and laborious. Automated imaging techniques have recently been successfully applied to detect plant diseases. However, these methods mostly focus on the current state of the crop. This paper proposes a gated recurrent unit (GRU)-based model to predict soybean sudden death syndrome (SDS) disease development. To detect SDS at a quadrat level, the proposed method uses satellite images collected from PlanetScope as the training set. The pixel image data include the spectral bands of red, green, blue and near-infrared (NIR). Data collected during the 2016 and 2017 soybean-growing seasons were analyzed. Instead of using individual static imagery, the GRU-based model converts the original imagery into time-series data. SDS predictions were made on different data scenarios and the results were compared with fully connected deep neural network (FCDNN) and XGBoost methods. The overall test accuracy of classifying healthy and diseased quadrates in all methods was above 76%. The test accuracy of the FCDNN and XGBoost were 76.3\u201385.5% and 80.6\u201389.2%, respectively, while the test accuracy of the GRU-based model was 82.5\u201390.4%. The calculation results show that the proposed method can improve the detection accuracy by up to 7% with time-series imagery. Thus, the proposed method has the potential to predict SDS at a future time.<\/jats:p>","DOI":"10.3390\/rs12213621","type":"journal-article","created":{"date-parts":[[2020,11,4]],"date-time":"2020-11-04T10:32:36Z","timestamp":1604485956000},"page":"3621","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["A Gated Recurrent Units (GRU)-Based Model for Early Detection of Soybean Sudden Death Syndrome through Time-Series Satellite Imagery"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3227-911X","authenticated-orcid":false,"given":"Luning","family":"Bi","sequence":"first","affiliation":[{"name":"Department of Industrial and Manufacturing Systems Engineering, Iowa State University, Ames, IA 50011, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8392-8442","authenticated-orcid":false,"given":"Guiping","family":"Hu","sequence":"additional","affiliation":[{"name":"Department of Industrial and Manufacturing Systems Engineering, Iowa State University, Ames, IA 50011, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7771-6822","authenticated-orcid":false,"given":"Muhammad Mohsin","family":"Raza","sequence":"additional","affiliation":[{"name":"Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA 50011, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuba","family":"Kandel","sequence":"additional","affiliation":[{"name":"Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA 50011, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leonor","family":"Leandro","sequence":"additional","affiliation":[{"name":"Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA 50011, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daren","family":"Mueller","sequence":"additional","affiliation":[{"name":"Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA 50011, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1094\/PHP-RS-16-0066","article-title":"Soybean yield loss estimates due to diseases in the United States and Ontario, Canada, from 2010 to 2014","volume":"18","author":"Allen","year":"2017","journal-title":"Plant Health Prog."},{"key":"ref_2","unstructured":"Crop Protection Network (2020, July 15). 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