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:2008
卷号:XXXVII Part B4
页码:1229-1234
出版社:Copernicus Publications
摘要:The high quality level that high resolution satellite images have reached in the last years has proved that these images could be a useful data source for the production of orthophoto and different mapping products. To test the capabilities of high resolution imagery, a study has been implemented in G.lba. . near Ankara. 12 ground control points were revised and signalized before the recording of images. Stereo-pair Ikonos, mono Quickbird and 1:16.000 scaled stereo aerial images have been provided free of charge. For geometric accuracy assessment; different digital elevation models have been created using photogrammetric and cartographic methods. Using these models, various orthophoto and mosaic images have been produced and besides well-recognized 27 checkpoints have been selected and measured with GPS too. Test of feature compilation was performed in 3 different regions and 1:5.000 scale was selected for compilation processes because of on-going discussions about usage of high resolution space imagery in big scale map productions. Three different experienced operators compiled all features on these regions using mono satellite and stereo aerial images and these map productions have been compared within each other. For the comparison assessment, a field control application has been carried out too. Also the results indicate that the stereo IKONOS image has the best accuracy and allows mapping processes up to 1:6.000 scale. And we can say that high resolution satellite imagery can be used to identify topographic changes for both large- and small-scale mapping, but these images couldn't reach to the accuracy level of aerial imagery in determining and identifying the small features yet and cannot be used as a source of direct topographic feature compilation
关键词:High Resolution; Aerial; Digital Elevation Model (DEM); Feature; Production; IKONOS; Quickbird