A study of the accuracy of oblique image capture in UAV Photogrammetry

Roberts, Andrew (2018) A study of the accuracy of oblique image capture in UAV Photogrammetry. [USQ Project]


The advancement of unmanned aerial vehicle technology and reduction in costs has allowed more users to embrace photogrammetry as a method of obtaining vast amounts of topographical data. To date there has been limited research into the accuracy of photogrammetry utilizing oblique image capture. The objectives for this research project were to identify which oblique image capture angle and flying height provide the most accurate depiction of a surface. Another objective is to determine whether a cheap consumer grade unmanned aerial vehicle (UAV) can produce accurate results.

The methodology for this project was to conduct repeatable UAV flights at 60°, 70° and 80° and flying heights of 12m, 20m and 30m over a flat surface which contained three dimensional cubic targets. A comparison of Z error values was made from digital elevation models for each flying height / image capture angle and checkpoints radiating from the cubic targets. A statistical analysis of Z error values identified that the most accurate, precise and reliable image capture angle was 70°.

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Item Type: USQ Project
Item Status: Live Archive
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying (1 Jul 2013 - 31 Dec 2021)
Supervisors: Perera, Kithsiri
Qualification: Bachelor of Spatial Science (Honours) (Surveying)
Date Deposited: 29 Aug 2022 04:10
Last Modified: 29 Jun 2023 02:30
Uncontrolled Keywords: unmanned aerial vehicle (UAV); photogrammetry; oblique image capture
URI: https://sear.unisq.edu.au/id/eprint/40669

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