جستجوی مقالات مرتبط با کلیدواژه « orthomosaic » در نشریات گروه « جغرافیا »

this paper is to compare the PPK schemes with RTK help of GCPs in the images for the second time with the help of GCPs in the images is to map the map and the second time with the help of GCPs the map is prepared and without the help of GCPs the map is prepared in this research different types of effective geometric errors in spatial accuracy of agricultural land cadastre map were investigated the accuracy of check points geometric displacement of parts and error of sampling stations in the area were calculated . considering the geometric errors obtained and using the geometric mean of these errors we achieve a comprehensive geometric error for converting UAV images into cadastre map . due to the geometrical errors and using the geometric mean of these errors, we achieve a comprehensive geometric error for converting the attitude of UAV to execution map of cadastre. in this study, due to the examination of points of checks, geometric displacement station error in the region we obtained 0.011746, 0.0815715, 0.054557, which can be achieved due to geometrical errors and using the geometric mean of these errors we achieve a total geometrical error of 0.098835 m for converting the attitude of UAV to cadastre map. This amount of error is suitable due to the direction of the mapping organization to provide maps of 1: 1000