Abstract
The used of Unmanned Aerial Vehicle (UAV) seems to be the most appropriate tools to be used nowadays to fly over the dangerous area for monitoring or examining activities like volcanic, toxic spills, flooded area and so on which has less accessibility to the people. The potential of UAV in potraying small area with high resolution image can be achieved if it is fly nearby the object in low altitude and exposure. To relate it to this study, image data acquired by UAV was used to modelling ground profile in subsequent to estimate the volume of soil for earthwork calculation. The aim of this study is to apply UAV image data acquisition to generate Digital Terrain Model (DTM) for volume determination at quarry area. Thus, the objectives of this study were to explore UAV usage and its application, to perform image mosaicking and modelling of UAV imageries for DTM generation as well as to analyse generated DTM for volume calculation. Methodology of the studies highlighted the data acquisition and processing of UAV images with Ground Control Point (GCP) and without GCP using Agisoft Photoscan software The 3-D model of the quarry area was generated with assisted software as well as to perform volume calculation. The accuracy assessment in this study is based on the comparison between UAV DTM with GCP and without GCP. Result of this studies shows the comparison analysis being made between volume determination with and without GCPs based on their contour interval. In conclusion, this study has demonstrated the suitability of UAV DTM for volume determination at quarry area has successfully carried out.
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