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Author Tahar, Khairul Nizam ♦ Ahmad, Anuar ♦ Abdul, Wan ♦ Wan, Aziz ♦ Akib, Mohd ♦ Mohd, Wan ♦ Mohd, Naim Wan
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Ground Control Point ♦ Photogrammetric Output ♦ Simulation Model ♦ Slope Mapping Study ♦ Unmanned Aerial System Image Processing ♦ Rotary-wing Uav ♦ Second Method ♦ Accuracy Assessment ♦ Nikon Coolpix Consumer Digital Camera ♦ Diversified Application ♦ Total Station ♦ Fixed Height Data Acquisition Method ♦ Light Weight Rotary-wing Uav ♦ Required Image ♦ Second Objective ♦ Fixed Height ♦ Final Product ♦ First Method ♦ Small-scale Mapping ♦ Digital Elevation Model ♦ Digital Orthophoto ♦ Image Acquisition ♦ First Objective ♦ Contour Line ♦ Small Area ♦ Limited Budget ♦ Digital Photogrammetric Software ♦ Uav System ♦ Time Constraint ♦ Image Capturing ♦ Wooden Structure
Abstract Abstract — The first objective of this study is to investigate the use of light weight rotary-wing UAV for mapping simulation model. The second objective is to determine the accuracy of the photogrammetric output produced from this study. In this study, the photogrammetric output such as stereomodel in three dimensional (3D), contour lines, digital elevation model (DEM) and orthophoto were produced from a simulation model with a dimension of 3m x 1m. In the simulation model, ground control points (GCP) and checked point (CP) were established using a total station. The GCP is used to produce photogrammetric output while the CP is used for accuracy assessment. A Nikon Coolpix consumer digital camera was used in image acquisition of the simulation model. Two methods of image capturing were used. In the first method, the camera was mounted vertically on a rotary-wing UAV and the images were captured at an altitude of 1.2 meters. In the second method, the camera was mounted vertically on a wooden structure at a fixed height (in this case 1.2 meters). After obtaining all the required images, they were then processed using digital photogrammetric software to produce photogrammetric output. Based on the results of this study, it was found that the final product of the rotary-wing UAV was not significantly different from the results acquired from the fixed height data acquisition method. The results of this study also showed that the differences of DEM and digital orthophoto between both methods were relatively small. Finally, it can be concluded that the UAV system can be used for small-scale mapping and other diversified applications, especially for small areas, which involves a limited budget and time constraints.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study