AUTOMATIC POLE DETECTION IN AERIAL AND SATELLITE IMAGERY FOR PRECISE IMAGE REGISTRATION WITH SAR GROUND CONTROL POINTS

Abstract. The world-wide absolute geographic positioning accuracy of optical Satellite imagery is mostly about a few pixels the image resolution. So for example WorldView-3 images have CE90 4 m. Also direct georeferencing without ground control information aerial in same range one to metres. These inaccuracies originate predominantly uncertainties angular measurements sensor attitude. An error only arc-second at satellite 750 km above results an on 3.6 On other hand radar satellites like TerraSAR-X or TanDEM-X do not measure angles but signal runtimes. if we identify point and can solve problem inaccurate angle-measurements models are able georeference world wide below pixel. In this paper present method identification point-objects which be detected both types images: footpoints poles. If such footpoint pole simultaneously geoposition corrected point-measurement image. To achieve high also nearly perfect correction all errors propagation times signals has conducted. describe how poles will extracted spaceborne air-borne these correlated potential imagery.