Digital orthophoto (DOP) is a georeferenced digital image of a part of the earth's surface of certain dimensions that has the characteristics of orthogonal projection, obtained by orthorectification of digital aerial photogrammetric images, digital satellite images or images obtained by other remote sensing methods.DOP is a digital topographic basemap that has all the information registered on the image since it was made (far more information compared to classic topographic plans or maps) but also all the measurement properties of topographic plans and maps of the appropriate level of detail.DOP of resolution 20 cm based on aerial photogrammetric acquisition from the epoch 2007-2010.The issuance of orthophotos is regulated Law on Republic Administrative Taxes which regulates the amount of the fee for services provided by the Republic Geodetic Authority.
Republic Geodetic Authority has digital orthophoto of resolution 20 cm for the area of cadastral municipalities where data from survey is not in official coordinate system for Republic of Serbia and data are obtained from aerial photogrammetric acquisition from the epoch 2007-2010. Realization of aerial photogrammetric acquisition 2007-2010 was performed with photogrammetric sensors Vexcel UCX and UCXp within CARDS program of the European Union.RMSE for position coordinates is 40 cm and is calculated as difference between the values of the position coordinates of control points measured on the orthophoto and their values determined by measuring on the field.Validity of the data set has been confirmed and is in accordance with the Rulebook on topographic survey and topographic and cartographic products.
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