Winter wheat harvest detection via Sentinel-2 MSI images

文献类型： 外文期刊

第一作者： Yue, Jibo

作者： Yue, Jibo;Yao, Yihan;Shen, Jianing;Li, Ting;Wei, Yihao;Xu, Xin;Guo, Wei;Fu, Yuanyuan;Qiao, Hongbo;Ma, Xinming;Wang, Jian;Xu, Nianxu;Feng, Haikuan;Feng, Haikuan;Lin, Yinghao;Lin, Yinghao

作者机构：

关键词： Wheat; maturity; harvest; monitoring; vegetation index

期刊名称：INTERNATIONAL JOURNAL OF REMOTE SENSING （ 影响因子：2.6； 五年影响因子：2.9 ）

ISSN： 0143-1161

年卷期： 2025 年 46 卷 6 期

页码：

收录情况： SCI

摘要： Wheat is one of the most important staple crops globally. Timely mapping and monitoring of wheat harvests are essential for efficiently scheduling large-scale harvesters, ensuring the timely completion of the harvest, and maintaining grain quality. Traditional manual survey methods for obtaining wheat harvest information are neither highly accurate nor cost-effective and do not meet the needs of agricultural management departments. This study introduces two novel indices for wheat harvest detection: the optical-band brightness harvest index (OBHI) and the visible-band brightness harvest index (VBHI). The research is structured into three primary components: (1) Extraction of wheat planting areas, utilizing phenological features from multiple growth stages; (2) Extraction of wheat harvesting features, where the proposed OBHI and VBHI are analysed using the box plot method to identify the harvesting characteristics of wheat croplands; and (3) Wheat harvest detection, employing the OBHI, VBHI, and a threshold method to determine the harvest status. The key findings are as follows: (1) Combining the OBHI with a threshold method achieves the highest accuracy in detecting wheat harvest using Sentinel-2 MSI images; (2) Integrating Sentinel-2 multispectral remote sensing imagery with the OBHI threshold method enables real-time monitoring of wheat harvest progress. In the study area, the wheat harvest commenced on 1 June 2023 (0.62%) and was nearly complete by 13 June 2023 (97.94%). The OBHI and VBHI proposed in this study have the potential to assist agricultural management departments in improving the efficiency of wheat harvest supervision. However, further research and validation are necessary to determine the generalizability and applicability of this method.

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