【英语翻译Accurateerrorestimatescanbecalculatedwithatleast4GCPs,whileoftenatleast5areneededtocoverthecenteroftheprojectaswell,whichreducesthechanceoferrorpropagationandresultingterraindistortionsespecially

问题：【英语翻译Accurateerrorestimatescanbecalculatedwithatleast4GCPs,whileoftenatleast5areneededtocoverthecenteroftheprojectaswell,whichreducesthechanceoferrorpropagationandresultingterraindistortionsespeciallyonfla】

答案：↓↓↓

付小宁的回答：

网友采纳　　用至少4个地面控制点可以计算出准确的误差估计,而通常至少需要5个地面控制点以同时覆盖项目的中心区域,这样可减少误差传播从而导致地形失真的几率,尤其是在平坦或起伏的地形类型上.