Method for the visualization of landform by mapping using low altitude UAV application

7th AIC‐ICMR on Sciences and Engineering 2017

自然科学;工业技术

Sharan Kumar, N.^1 ; Ismail, Mohd Ashraf Mohamad^1 ; Sukor, Nur Sabahiah Abdul^1 ; Cheang, William^2

School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia^1

Regional Technical Manager, Plaxis Asia (Plaxis Bv), Plaxis AsiaPac Pte.Ltd, United States^2

关键词: Digital elevation model;    Digital photogrammetry;    Digital surface model (DSM);    Flight altitudes;    Flying technology;    Ground control points;    Information accumulation;    Landform mapping;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/352/1/012032/pdf
DOI  :  10.1088/1757-899X/352/1/012032

来源: IOP

【 摘 要 】

Unmanned Aerial Vehicle (UAV) and Digital Photogrammetry are evolving drastically in mapping technology. The significance and necessity for digital landform mapping are developing with years. In this study, a mapping workflow is applied to obtain two different input data sets which are the orthophoto and DSM. A fine flying technology is used to capture Low Altitude Aerial Photography (LAAP). Low altitude UAV (Drone) with the fixed advanced camera was utilized for imagery while computerized photogrammetry handling using Photo Scan was applied for cartographic information accumulation. The data processing through photogrammetry and orthomosaic processes is the main applications. High imagery quality is essential for the effectiveness and nature of normal mapping output such as 3D model, Digital Elevation Model (DEM), Digital Surface Model (DSM) and Ortho Images. The exactitude of Ground Control Points (GCP), flight altitude and the resolution of the camera are essential for good quality DEM and Orthophoto.