期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B3b
页码：149-152
出版社：Copernicus Publications
摘要：Based on the character of Lidar data，this paper presents a fusion arithmetic to abstract DEM，and presents a flow to get building data from the object data. Firstly, this paper preprocesses the range information and intensity information，fuses these two different kinds data, abstracts ground seed point，uses sub area surface fitting way to generate DEM. Then，using an improved connected component labeling algorithm to label the object data，according to the connectivity to analyze and segment the data, adopting mathematical morphology way to optimize the result. An experimental data is disposed by using the flow and algorithm，and the result proves it is feasible
