Using Digital Cameras on an Unmanned Aerial Vehicle to Derive Optimum Color Vegetation Indices for Leaf Nitrogen Concentration Monitoring in Winter Wheat. - Jiale Jiang; Weidi Cai; Hengbiao Zheng; Tao Cheng 003; Yongchao Tian; Yan Zhu 005; Reza Ehsani; Yongqiang Hu; Qingsong Niu; Lijuan Gui; Xia Yao (Remote. Sens., 2019)

Detection of phenology using an improved shape model on time-series vegetation index in wheat. - Meng Zhou; Xue Ma; Kangkang Wang; Tao Cheng 003; Yongchao Tian; Jing Wang; Yan Zhu 005; Yongqiang Hu; Qingsong Niu; Lijuan Gui; Chunyu Yue; Xia Yao (Comput. Electron. Agric., 2020)