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http://dx.doi.org/10.7319/kogsis.2012.20.2.055

LOS Analysis Simulation considering Canopy Cover  

Kong, Seong-Pil (건국대학교 신기술융합학과)
Song, Hyun-Seung (국방과학연구소)
Eo, Yang-Dam (건국대학교 신기술융합학과)
Kim, Yong-Min (서울대학교 건설환경공학부)
Kim, Chang-Jae (상명대학교 건설시스템공학과)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.20, no.2, 2012 , pp. 55-61 More about this Journal
Abstract
The primary factors of the LOS(Line-of-Sight) analysis process are terrain height, camera capacity, and canopy cover. The canopy cover rate differs depending on the changing season, and its value is influenced by the tree density, tree height, and etc. This study generated the canopy cover value based on relationship between NDVI(Normalized Difference Vegetation Index) and DMT(Density Measure % of Tree/Canopy Cover), which is a digital map attribute, and then performed the LOS analysis on six station of test sites. As results, It was found that NDVI and DMT are correlated with each other through the experiments. Based on this finding, new DMT map can be generated using NDVI. Also, There is a difference between the result of visibility analysis using the present DMT and one using a new DMT. Especially, the spatial distributions of the detected visible areas are significantly different between the two visibility analysis results.
Keywords
Line of Sight Analysis; Canopy Cover; NDVI; Density Measure of Tree;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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