Journal of the Korean Association of Geographic Information Studies (한국지리정보학회지)
- Volume 8 Issue 4
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- Pages.61-70
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- 2005
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- 1226-9719(pISSN)
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- 2287-6952(eISSN)
Extracting Ground Information from Airborne Laser Scanning Data based on Mean Filtering Method
평균필터기반 항공레이저측량 자료의 지면정보 추출기법
- Choi, Yun-Woong (Department of Civil Engineering, Chonbuk National University) ;
- Lee, Geun-Sang (Korea Water Resources Corporation, Korea Institute of Water and Environment) ;
- Chae, Hyo-Sok (Korea Water Resources Corporation, Korea Institute of Water and Environment) ;
- Cho, Gi-Sung (Department of Civil Engineering, Chonbuk National University)
- Received : 2005.09.15
- Accepted : 2005.11.22
- Published : 2005.12.31
Abstract
Airborne laser scanning system needs preprocessing which removes some objects such as buildings from the raw DSM data to construct DEM in building area because the laser pulse can't penetrate into the buildings. This study applied the mean filtering method which has various size filter to the DSM data constructed by airborne laser scanning system and decided the optimal filter size as
항공레이저측량시스템은 레이저펄스가 투과하지 못하는 건물지역에서는 DEM을 구축하기 위해 원시 DSM 자료로부터 건물 등의 지물을 제거하는 전처리 과정이 필요하다. 본 연구에서는 항공레이저측량을 이용하여 구축한 DSM 자료로부터 다양한 크기의 평균필터를 적용하였으며, 표준편차 변화율을 분석하여
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