Journal of the Korean Association of Geographic Information Studies (한국지리정보학회지)
- Volume 6 Issue 3
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- Pages.95-106
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- 2003
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- 1226-9719(pISSN)
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- 2287-6952(eISSN)
The Evaluation of Architectural Density on Urban District using Airborne Laser Scanning Data
항공레이저측량 자료를 이용한 시가지 건축밀도 평가에 관한 연구
- Lee, Geun-Sang (Korea Water Resources Corporation, Korea Institute of Water and Environment) ;
- Koh, Deuk-Koo (Korea Water Resources Corporation, Korea Institute of Water and Environment) ;
- Cho, Gi-Sung (Department of Civil Engineering, Chonbuk National University)
- Received : 2003.08.03
- Accepted : 2003.09.15
- Published : 2003.09.30
Abstract
This study evaluated the architectural density of urban district using airborne laser scanning(ALS) that is a method used in urban planning, water resources and disaster prevention with high interest recently. First, digital elevation model(DEM) and digital surface model(DSM) was constructed from Light detection and ranging(LiDAR). For getting the height of building, ZONALMEAN filter was used in DEM and ZONALMAJORITY filter was used in DSM. This study compared the floor from filtering with the floor from survey and got standard error, which is
본 연구에서는 최근 도시계획, 수자원 및 방재 분야에서 높은 관심을 가지고 연구중인 항공레이저측량기법을 활용하여 시가지의 건축밀도를 평가하였다. 먼저, 레이저스캐너인 LiDAR(light detection and ranging)로 취득한 표고자료로부터 DEM(digital elevation model)과 DSM(digital surface model)을 구축하였으며, 건물의 높이를 계산하기 위해 DEM에는 ZONALMEAN 필터, DSM에는 ZONALMAJORITY 필터를 적용하였다. 필터링 과정으로부터 계산한 층수와 현지조사의 층수를 비교한 결과 표준오차
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