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《Engineering of Surveying and Mapping》 2009-03
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DSM extraction from LiDAR data and its application to processing true-ortho images

PAN Hui-bo,HU You-jian,WANG Da-ying(Department of Geomatics Engineering,China University of Geosciences,Wuhan 430074,China)  
Traditional ortho images is corrected by terrain model(DTM),as a result of which objects like housetops and trees are projected incoorrectly.If using surface model(DSM) which extracted from Lidar data,objects and ground are well corrected,then we can process true-ortho images.This paper summarizes the principle and makeup of Lidar,then explains elaborately a method of extracting DSM from Lidar data and applies it to process ture-ortho images.
【CateGory Index】: P231.2
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