【英语翻译Accurateerrorestimatescanbecalculatedwithatleast4GCPs,whileoftenatleast5areneededtocoverthecenteroftheprojectaswell,whichreducesthechanceoferrorpropagationandresultingterraindistortionsespecially
<p>问题：【英语翻译Accurateerrorestimatescanbecalculatedwithatleast4GCPs,whileoftenatleast5areneededtocoverthecenteroftheprojectaswell,whichreducesthechanceoferrorpropagationandresultingterraindistortionsespeciallyonfla】<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">付小宁的回答：<div class="content-b">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.
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