无人机多角度成像方式的饲料油菜生物量估算研究

张建, 谢田晋, 尉晓楠, 王宗铠, 刘崇涛, 周广生, 汪波

Estimation of feed rapeseed biomass based on multi-angle oblique imaging technique of unmanned aerial vehicle

ZHANG Jian, XIE Tian-Jin, WEI Xiao-Nan, WANG Zong-Kai, LIU Chong-Tao, ZHOU Guang-Sheng, WANG Bo

表3 3种飞行高度下的生物量提取结果

Table 3 Biomass extraction results at three flight heights

飞行高度 Flight height (m) 预测模型 Prediction model 校正集 Calibration set 验证集 Validation set 相关系数 r 均方根误差 RMSE (g m-2) 相对误差RE (%) 相关系数 r 均方根误差 RMSE (g m-2) 相对误差RE (%) 40 y = 456.962x-17.227 0.792 125.0 13.2 0.752 139.1 15.3 60 y = 443.694x+8.513 0.745 130.2 13.7 0.764 133.9 14.9 80 y = 445.053x-24.698 0.722 138.4 14.4 0.674 152.3 16.7