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http://dx.doi.org/10.7780/kjrs.2015.31.5.10

Investigating Applicability of Unmanned Aerial Vehicle to the Tidal Flat Zone  

Kim, Bum-Jun (Korea Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Lee, Yoon-Kyung (Korea Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Choi, Jong-Kuk (Korea Ocean Satellite Center, Korea Institute of Ocean Science and Technology)
Publication Information
Korean Journal of Remote Sensing / v.31, no.5, 2015 , pp. 461-471 More about this Journal
Abstract
In this study, we generated orthoimages and Digital Elevation Model (DEM) from Unmanned Aerial Vehicle (UAV) to confirm the accuracy of possibility of geospatial information system generation, then compared the DEM with the topographic height values measured from Real Time Kinematic-GPS (RTK-GPS). The DEMs were generated from aerial triangulation method using fixed-wing UAV and rotary-wing UAV, and DEM based on the waterline method also generated. For the accurate generation of mosaic images and DEM, the distorted images occurred by interior and exterior orientation were corrected using camera calibration. In addition, we set up the 30 Ground Control Points (GPCs) in order to correct of the UAVs position error. Therefore, the mosaic images and DEM were obtained with geometric error less than 30 cm. The height of generated DEMs by UAVs were compared with the levelled elevation by RTK-GPS. The value of R-square is closely 1. From this study, we could confirm that accurate DEM of the tidal flat can be generated using UAVs and these detailed spatial information about tidal flat will be widely used for tidal flat management.
Keywords
UAV; mosaic image; DEM; interior orientation; exterior orientation;
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Times Cited By KSCI : 3  (Citation Analysis)
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