Two-Stepwise Hierarchical Adaptive Threshold Method for Automatic Rapeseed Mapping over Jiangsu Using Harmonized Landsat/Sentinel-2. - Shaomei Chen; Zhaofu Li; Tingli Ji; Haiyan Zhao; Xiaosan Jiang; Xiang Gao; Jianjun Pan; Wenmin Zhang (Remote. Sens., 2022)