A FLOW TO GENERATE DEM AND SEGMENT BUILDINGIN IN URBAN AREAS FROM LIDAR DATA
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.
Lidar Fusion filter Digital elevation model Connected component labelling Mathematical morphology
Lai Xudong Wan Youchuan Wei wei
School of Remote Sensing and Information Engineering, Wuhan University, 129 luoyu Road, Wuhan 430079 Urban Design, Wuhan University, 129 luoyu Road, Wuhan 430079, China
国际会议
北京
英文
2765-2768
2008-07-03（万方平台首次上网日期，不代表论文的发表时间）