Quantitative assessment of "UAV" photogrammetry and LiDAR Digital Surface Model (LiDSM) / Thuaibatul Aslamiah Mastor

Mastor, Thuaibatul Aslamiah (2016) Quantitative assessment of "UAV" photogrammetry and LiDAR Digital Surface Model (LiDSM) / Thuaibatul Aslamiah Mastor. Masters thesis, Universiti Teknologi MARA (UiTM).


Digital Surface Model is extensively used in many fields such as surveying, construction, environmental engineering, and disaster management and so on. Generally, the need of accuracy and every detail of ground information on DSM extraction is crucial for most applications. The innovation of technology in Photogrammetry field resulted in invention of a small aerial vehicle that carrying sensor such as a compact camera. The DSM can be extracted from digital aerial imagery of small format cameras. Meanwhile, the LiDAR technology offer the ground information in term of point cloud and in 3D makes this technology is popularly used as a technology to produce high resolution maps. This study is performed to assess the accuracy of DSM derived from both data that has been utilized by using a different platform which is UAV and LiDAR platform. Sony is utilized as non-metric camera for the ground information acquisition. In this study 39 points in 3 dimensional were established using Rapid Static method GPS technique and 10 point used as ground control for aerial triangulation. 39 points collected also used for Checkpoint (CP) for accuracy assessment. The research output is then evaluated for planimetry and vertical accuracy, using Root Mean Square Error (RMSE). Based on the analysis that has been made, sub-meter accuracy for both RMSE(x,y,z) was obtained. Refer to the result obtained, UAV Photogrammetry constantly produced the highest planimetry accuracy on the earth's surface which is RMSE(x) = 0.277m and RMSE(y) = 0.202m. While the accuracy of RMSE(x) for LiDAR data is 0.284 m and RMSE (y) =0.208m. In contrast, LiDAR DSM gives the best result of RMSE (z) which is 0.132m. Meanwhile UAV Photogrammetry give RMSE (z) is 0.253m. Overall, UAV Photogrammetry provides more accurate monitoring data in term of planimetry accuracy while LiDAR data give the best result on vertical accuracy which RMSE (z). Although, based on some cases, it is more careful Photogrammetry processing is necessary to attain monitoring accuracy requirement especially in vegetated areas.


Item Type: Thesis (Masters)
Email / ID Num.
Mastor, Thuaibatul Aslamiah
Email / ID Num.
Thesis advisor
Samad, Abd Manan
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Architecture, Planning and Surveying
Programme: Master of Science (Built Environment)
Keywords: LiDAR platform, digital surface model, digital aerial imagery
Date: 2016
URI: https://ir.uitm.edu.my/id/eprint/37533
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