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Assessment of GF3 Full-Polarimetric SAR Data for Dryland Crop Classification with Different Polarimetric Decomposition Methods

文献类型： 外文期刊

作者： Wang, Meng 1 ; Liu, Changan 2 ; Han, Dongrui 1 ; Wang, Fei 1 ; Hou, Xuehui 1 ; Liang, Shouzhen 1 ; Sui, Xueyan 1 ;

作者机构： 1.Shandong Acad Agr Sci, Jinan 250100, Peoples R China

2.State Geospatial Informat Ctr, Beijing 100070, Peoples R China

关键词： Gaofen-3 (GF3) SAR; dryland crops; classification; agriculture; polarimetric decomposition

期刊名称：SENSORS （ 影响因子：3.847； 五年影响因子：4.05 ）

ISSN：

年卷期： 2022 年 22 卷 16 期

页码：

收录情况： SCI

摘要： Crop classification is one of the most important agricultural applications of remote sensing. Many studies have investigated crop classification using SAR data, while few studies have focused on the classification of dryland crops by the new Gaofen-3 (GF3) SAR data. In this paper, taking Hengshui city as the study area, the performance of the Freeman-Durden, Sato4, Singh4 and multi-component decomposition methods for dryland crop type classification applications are evaluated, and the potential of full-polarimetric GF3 data in dryland crop type classification are also investigated. The results show that the multi-component decomposition method produces the most accurate overall classifications (88.37%). Compared with the typical polarization decomposition techniques, the accuracy of the classification results using the new decomposition method is improved. In addition, the Freeman method generally yields the third-most accurate results, and the Sato4 (87.40%) and Singh4 (87.34%) methods yield secondary results. The overall classification accuracy of the GF3 data is very positive. These results demonstrate the great promising potential of GF3 SAR data for dryland crop monitoring applications.

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