Title :
Iterative DCT algorithm for digital elevation model reconstruction from isogram maps
Author :
Lukin, Vladimir ; Ponomarenko, Nikolay ; Sharonov, Valeriy ; Zelensky, Alexander
Author_Institution :
Nat. Aerosp. Univ., Kharkov, Ukraine
Abstract :
The problems of digital elevation model (DEM) reconstruction from isogram maps and the arising problems are considered. An iterative algorithm based on discrete cosine transform with taking into account several nonlinear constraints is proposed. The algorithm efficiency and accuracy analysis for test and real data are performed and compared to Delaunay triangulation based method. The advantages of the proposed technique are shown.
Keywords :
discrete cosine transforms; iterative methods; mesh generation; radiowave propagation; terrain mapping; Delaunay triangulation based method; accuracy analysis; algorithm efficiency; digital elevation model reconstruction; discrete cosine transform; isogram maps; iterative DCT algorithm; nonlinear constraints; Digital elevation models; Discrete cosine transforms; Image reconstruction; Iterative algorithms; Radar cross section; Radar imaging; Radar remote sensing; Remote sensing; Sea level; Testing;
Conference_Titel :
Modern Problems of Radio Engineering, Telecommunications and Computer Science, 2004. Proceedings of the International Conference
Conference_Location :
Lviv-Slavsko, Ukraine
Print_ISBN :
966-553-380-0