首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Effect of data density,scan angle,and flying height on the accuracy of building extraction using LiDAR data
Authors:Bharat Lohani  Rajneesh Singh
Institution:1. Department of Civil Engineering , Indian Institute of Technology Kanpur , Kanpur, India , 208016blohani@iitk.ac.in;3. Department of Civil Engineering , Indian Institute of Technology Kanpur , Kanpur, India , 208016
Abstract:A Hough transform based approach for extraction of buildings using LiDAR data is presented. It is argued that LiDAR data should be smoothed and sparsed prior to Hough transform for better result. Algorithms to realize this are presented. Further, an algorithm which fits a vector model to extracted buildings is outlined. Simulated LiDAR data have been used to investigate the effect of three parameters (data density, flying height, and scan angle) on the quality of buildings extracted. A set of accuracy indices is proposed for this purpose. It is shown that the data density is the most significant parameter affecting the accuracy of building identification.
Keywords:Building identification  Hough transform  LiDAR  LiDAR simulator
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号