期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 1
出版社：Copernicus Publications
摘要：Since early 1999, the CNES has worked on defining and equiping supersites for its needs in image quality assessment. Various criteria guided the definition of this supersite involving the characteristics of high resolution earth observation satellites and the image quality assessment methods. The main goal of this work was to have a high resolution geometric reference in order to calibrate any high resolution spatial sensor. A very high resolution camera named PELICAN flew near the city of Salon de Provence in the South East of France in September 2004 and March 2005 to produce images with narrow angular field of view. This site suits geometric and radiometric image quality assessment and moreover ensures an acceptable weather and a stable landscape. Two really different seasons were selected in order to take into account the evolution of the landscape and allow us to calibrate unknown sensors anytime. The accuracy of sensor calibration that can be obtained using image matching technics depends on several parameters. Both planimetric and altimetric accuracy of reference data over the .supersite.are key factors for the quality of the end result. Altimetry is controlled through an elevation model (including superstructures) whereelse planimetry is controlled through particularly accurate aerotriangulation based on fifty one ground control targets painted and measured with high accuracy through a GP S measurement campaign conducted by an IGN expert in 2004. As a result, the planimetric accuracy of Salon supersite is better than 5cm RMS. An accurate DEM, at one meter ground resolution has also been computed. Altimetric accuracy of the DEM is better than 10cm RMS
