Publication: Aerial Mapping Analysis of Uniten Lab Construction Site Using Photogrammetry of Uavs (Unmanned Aerial Vehicles)
Date
2020-09
Authors
Mohammad Arif bin Abdul Karim
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
New technologies, such as UAVs and their combination with a digital camera, bring new opportunities in the Earth's surface documentation. The convergence of technology allows the use of low-cost digital photogrammetry to analyse the overview of the Earth's surface and structure in civil activities. The project deals with the 3D metric reconstruction of the UNITEN, Putrajaya open laboratory facilities. Through the combination of aerial data collected with UAV and terrestrial data obtained with close range photogrammetry techniques, complete mapping of the area was carried out. The data acquired were then processed using digital photogrammetric software from Agisoft Metashape and stitched together using the Structure from Motion (SFM), a technique that uses a sequence of 2-dimensional images to recreate a scene or object's 3-dimensional structure. The results showed the possible applicability of UAV technology for fast and reliable building 3D reconstruction to monitor building progress and building inspections, real-time. The Digital Elevation Model (DEM) is also reliable to track the elevation data when compared to traditional surveying data. The orthophotos gives precise measurements when compared to AutoCAD drawing of site. These results indicate that the combination of low-cost UAV and a digital camera can be used as a viable alternative to data collection with the objective of creating 3D modelling of buildings or areas collected from aerial and terrestrial data.
Description
Interim Semester 2020/2021
Keywords
Aerial Photogrammetry UAV