Abstract
In order to utilize the roof space of the building, correctly calculated roof area is required. However, existing calculation methods of roof area have problems such as the hassle of on-site measurements and use of the calculation formula which has an incorrect element. Therefore, this study conducted a basic research to establish a faster and more accurate calculation method compared to the traditional calculation method by utilizing UAV. Aerial photographs of the target site were obtained by using UAV and Orthophoto and DEM were generated based on this. Among 54 investigation target buildings, 41 buildings were classified by the roof shape of buildings, except for 13 buildings with a flat roof. Also, the roof slope of 41 buildings was measured by applying the Slope of ArcMap to generated DEM.
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