利用地形、土壤和作物信息辅助提高东北漫岗地数字高程模型精度的新方法

马雨阳,官海翔,杨昊轩,邵帅,邵逸群,刘焕军

A New Method to Improve the Accuracy of Digital Elevation Model in Northeast China by Using Terrain, Soil and Crop Information

MA YuYang,GUAN HaiXiang,YANG HaoXuan,SHAO Shuai,SHAO YiQun,LIU HuanJun

表8 平坦和起伏区域的精度评估

Table 8 Accuracy assessment of flat and undulating areas

平坦区 Flat area 起伏区 Fluctuation area 均方根误差RMSE (m) 偏率 Bias 均方根误差 RMSE (m) 偏率 Bias 极限学习机ELM 1.00 0.98 0.94 1.01 反向传播神经网络BPNN 0.84 0.99 0.99 1.02