基于不同空间分辨率无人机多光谱遥感影像的小麦倒伏区域识别方法
魏永康, 杨天聪, 丁信尧, 高越之, 袁鑫茹, 贺利, 王永华, 段剑钊, 冯伟

Wheat Lodging Area Recognition Method Based on Different Resolution UAV Multispectral Remote Sensing Images
WEI Yongkang, YANG Tiancong, DING Xinyao, GAO Yuezhi, YUAN Xinru, HE Li, WANG Yonghua, DUAN Jianzhao, FENG Wei
表2 小麦倒伏分类研究中使用的植被指数
Table 2 Vegetation indices used in wheat lodging classfication study
植被指数公式
差值植被指数(Difference Vegetation Index,DVI)15DVI=Rred.edge-Rred (1)
归一化植被指数(Normalized Difference Vegetation Index,NDVI)15NDVI=(Rnir-Rred)/(Rnir+Rred) (2)
比值植被指数(Ratio Vegetation Index,RVI)15RVI=Rnir/Rred (3)
优化调节土壤植被指数(Optimization Soil-Adjusted Vegetation Index,OSAVI)16OSAVI=(1+0.16)(Rnir-Rred)/(Rnir+Rred+0.16) (4)
红边归一化植被指数(Red Edge Normalized Difference Vegetation Index,RENDVI)17RENDVI=(Rred.edge-Rred)/(Rred.edge+Rred) (5)