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http://dx.doi.org/10.4217/OPR.2017.39.2.159

A Preliminary Study on UAV Photogrammetry for the Hyanho Coast Near the Military Reservation Zone, Eastern Coast of Korea  

Kim, Baeck-Oon (Institute of Marine Sciences, Chungnam National University)
Yun, Kong-Hyun (Institute of Marine Sciences, Chungnam National University)
Chang, Tae-Soo (Department of Ocean Science, College of Ocean Science and Technology Korea Maritime and Ocean University)
Bahk, Jang-Jun (Oceanography & Ocean Environmental Sciences, College of Natural Sciences Chungnam National University)
Kim, Seong-Pil (Korea Institute of Geoscience and Mineral Resources, Pohang Branch)
Publication Information
Ocean and Polar Research / v.39, no.2, 2017 , pp. 159-168 More about this Journal
Abstract
To evaluate the accuracy of UAV photogrammetry for Hyangho coast, eastern coast of Korea, we conducted a field experiment wherein UAV photogrammetry test was repeated three times. Since the Haygho coast is located within a military reservation zone, it was necessary to obtain permission to gain access to the beach and to have sensitive aerial photographs showing military facilities inspected and cropped. The standard deviation of the UAV shooting position between the three tests was less than 1 m, but repeatability of footprint on the ground was low due to wind-driven variability of the UAV pose. Self-calibrating bundle adjustment(SCBA) of implementing non-metric camera calibration was failed in one test. In two tests, the vertical error was twice as large as the pixel size except for those areas that were subject to security inspection and cropping. Given the problems that can arise with regard to the repeatability of the shooting area as well as the possibility of failure with regard to SCBA, we strongly recommend that UAV photogrammetry in coastal areas needs to be repeated at least twice.
Keywords
UAV photogrammetry; coastal zone; military reservation zone; self-calibrating bundle adjustment; digital surface model; accuracy;
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Times Cited By KSCI : 3  (Citation Analysis)
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