Title :
High resolution satellite images position accuracy tests
Author :
Boccardo, P. ; Mondino, E. Borgogno ; Tonolo, F. Giulio
Author_Institution :
Dept. of Georisorse e Territorio, Politecnico di Torino, Italy
Abstract :
This paper concerns high resolution satellite images position accuracy tests carried out through orthoprojection procedures both using commercial softwares and home-made ones. Planimetric positioning errors and influence of GCPs number on the results are shown. This kind of test drives us to consider the possibility of using such images for cartographic updating purposes. Moreover they demonstrate how the reference DEM could influence the final result. In detail the improving action of the utilization of an urban dense DEM (altimetric information of terrain plus buildings) is shown. Finally future planned developments in the home-made orthoprojection algorithms are presented.
Keywords :
geophysical signal processing; photogrammetry; terrain mapping; buildings; cartography; digital elevation model; high resolution satellite images position accuracy tests; orthoprojection algorithm; planimetric positioning errors; terrain altimetric information; urban dense DEM; Computer languages; Equations; Image databases; Image resolution; Image sensors; Parametric statistics; Polynomials; Satellites; Software testing; Spatial databases;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294428
