A Priori-Knowledge Method of Bridge Outline Extraction Based on Airborne LiDAR Data

Yi Zheng; Cheng Yi Wang

doi:10.4028/www.scientific.net/AMR.718-720.2438

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 718-720A Priori-Knowledge Method of Bridge Outline...

A Priori-Knowledge Method of Bridge Outline Extraction Based on Airborne LiDAR Data

Abstract:

Bridge information is the most basic spatial data to build 3D digital city and virtual earth, and it plays an important role as clues and reference during extraction of other surface targets. The crucial problem is the extraction of the boundary line of the bridge. It is the research focus of many experts and scholars. This paper presented a method of bridge extraction using airborne LiDAR data. The biggest advantage of the method is based on priori-knowledge and by analyzing the spatial structural characteristics and geometric characteristics of the bridge. Experiments show that this method has a good accuracy compared with the result of expert interpretation.

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Periodical:

Advanced Materials Research (Volumes 718-720)

Pages:

2438-2442

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.718-720.2438

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Online since:

July 2013

Authors:

Yi Zheng, Cheng Yi Wang

Keywords:

Bridge Outline Extraction, Digital Surface Model (DSM), Geometric Characteristics, Light Detection and Ranging (LiDAR), Spatial Structural Characteristics

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