Estimation of Leaf Nitrogen Content in Rice Using Vegetation Indices and Feature Variable Optimization with Information Fusion of Multiple-Sensor Images from UAV - Xu, Sizhe; Xu, Xingang; Blacker, Clive; Gaulton, Rachel; Zhu, Qingzhen; Yang, Meng; Yang, Guijun; Zhang, Jianmin; Yang, Yongan; Yang, Min; Xue, Hanyu; Yang, Xiaodong; et al. (Remote sensing (Basel, Switzerland), 2023)
Keywords: Accuracy; Adaptive sampling; Algorithms; Background noise; Cameras; color; Correlation analysis; Crop growth; Crops; Data integration; Decision making; Decision trees; Digital imaging; Estimation; Fertilization; image fusion; Imaging techniques; leaf nitrogen content; Leaves; Machine learning; multispectral imagery; Neural networks; Nitrogen; nutrition; Optimization; Regularization; Remote sensing; removal of background noise; Rice; Rice fields; Saturation (color); Sensors; soil; Spatial discrimination; Spatial resolution; UAV remote sensing; Unmanned aerial vehicles; variable optimization; Variables; Vegetation; Vegetation index; Wheat; China