TY - JOUR A1 - Jeong, H. H. A1 - Park, J. W. A1 - Kim, J. S. A1 - Choi, C. U. T1 - Assessing the Accuracy of Ortho-image using Photogrammetric Unmanned Aerial System JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XLI-B1 SP - 867 EP - 872 Y1 - 2016/06/06 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XLI-B1/867/2016/ L1 - https://isprs-archives.copernicus.org/articles/XLI-B1/867/2016/isprs-archives-XLI-B1-867-2016.pdf DO - 10.5194/isprs-archives-XLI-B1-867-2016 ER -