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：2010
卷号：XXXVIII - Part 3A
页码：97-102
出版社：Copernicus Publications
摘要：In the previous research, a new method for automatic 3D power line modeling related to rapid risk management in a power line corridor using airborne LIDAR data was proposed. The method of piece-wise propagation of catenary curve model provided robustness and reliability for 3D automatic power line reconstruction. Although the previous method demonstrated its high success rate of power line generation, it still produced under- and over- reconstruction errors under the circumstance of high-degree of power line scene complexity with irregular distribution of point clouds. This research focuses on correcting incompletely reconstructed power line models by applying a multi-level span analysis which utilizes the benefits of topological relations within inner-span and across neighbouring spans. The inner-span analysis is developed based on Minimum Description Length (MDL) theorem for rectifying under-reconstruction over bundled wires and over-reconstruction errors of partially detected lines. The across-span alaysis aims to adjust the parameters of power-line models by detecting precise location of POAs (Position Of Attachment). The POA detection is performed by analyzing a line-connectivity of conjugated paired lines found around a power tower. The proposed method also demonstrates a localization and prismatic modelling of power tower by a incremental searching of voxel space. The localization of power towers is used for final P OA detection and adjustment of power-line parameters for completing power-line models
