利用機載LiDAR數(shù)據(jù)快速制作DEM的技術方法
發(fā)布時間:2018-05-06 14:03
本文選題:DEM + 點云濾波; 參考:《測繪標準化》2016年04期
【摘要】:與航空攝影測量相比,LiDAR技術可以不受時間、地形、地面覆蓋等限制,具有全天候、直接、快速、高精度、高密度地獲取地表三維信息的特點。主要探討利用機載LiDAR數(shù)據(jù)快速制作DEM的處理流程和關鍵技術,并結合生產(chǎn)實例進行精度分析。試驗證明,機載LiDAR數(shù)據(jù)經(jīng)過一系列專業(yè)處理,能快速高效地獲取高精度DEM,滿足測繪成果要求。
[Abstract]:Compared with aero photogrammetry, LiDAR technology can not be limited by time, terrain and ground cover. It has the characteristics of all weather, direct, rapid, high precision and high density to obtain the three-dimensional information of the surface of the earth. It mainly discusses the processing flow and key technology of the rapid production of DEM by using airborne LiDAR data, and carries out the precision analysis in combination with the production example. It is verified that airborne LiDAR data can be obtained quickly and efficiently through a series of professional processing to achieve high precision DEM and meet the requirements of Surveying and mapping results.
【作者單位】: 國家測繪地理信息局第一航測遙感院;
【分類號】:P237;P208
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相關期刊論文 前1條
1 鄔建耀;林思立;;機載Lidar數(shù)據(jù)快速濾波方法[J];測繪技術裝備;2007年03期
,本文編號:1852596
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