期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2006
卷号：16
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：The subject of this paper is an analysis of the influence of a photogrammetric reference net on the accuracy of the calibration of very high resolution satellite imagery using a rigorous sensor model. It was studied whether the results of orthorectification preceded by image calibration depend on configuration of Ground Control Points. The test field was an area of 5×5 km of central Poznan with level differences of less than 30 m. An OrthoReady QuickBird 2 image with excellent radiometric quality was used. The GCPs (contrasted with the surroundings and distributed into 4 lines by 4 points) were selected. 1-3 Check Points were placed near of each of them. All points were measured with the GPS\RTK method with a horizontal mean error mp=±24 mm and vertical error mH=±45 mm. Against the regular distribution of points,five irregular ones were set off. The first three cases are rather untypical and concern the distribution of GCP’s diagonally (1),at the edge (2) and along vertical axis of the image (3). In cases 4 and 5,the points are randomly scattered in the image. The results of consecutive adjustments in the given GCPs did not differ from the model case,but significantly increased at the Check Points – achieving up to 20-times greater values in consecutive configurations. From the analyses of results,a need was determined to select even a minimum number of 8 GCPs,but regularly distributed on the peripheries of the treated part of the scene to achieve subpixel accuracy of the orthophotomap,even if this part lies at the side of the scene.
其他摘要：Przedmiotem pracy jest analiza wpływu osnowy fotogrametrycznej na dokładność kalibracji fragmentu sceny wysokorozdzielczego zobrazowania satelitarnego metodą fizycznego modelu kamery. Analizowano,czy wyniki ortorektyfikacji poprzedzonej kalibracją obrazu
关键词：QuickBird;geometric calibration;rigorous sensor model
其他关键词：QuickBird;kalibracja geometryczna;fizyczny model kamery
