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\iteman{io-port 06024007}
\itemau{Marchuk, Andrei G.; Simonov, K.V.}
\itemti{Detecting possible impact craters on the Earth's surface using the DEM data processing.}
\itemso{Bull. Novosib. Comput. Cent., Ser. Math. Model. Geophys. 10, 59-66 (2005).}
\itemab
Summary: We make an attempt to detect impact craters and other morphologic structures on the Earth's surface using hight-tech computational methods. For detection and allocation of such structures we apply the fast 2D wavelet transformation and fast nonlinear multiparameter regression analysis for the digital elevation (DEM) subsets and 3D shaded images. The computing process for the solution of the above problem takes the form of a computational experiment and includes, in particular, the procedure of training on the known reliable impact structures, the procedure of testing of the constructed regression model and detection and identification of the required shapes on the Earth's surface with their subsequent contrast improvement. This technology was used for the detection of the big circle structures on the territory of North America and Central Siberia. The results obtained seem to be promising. The known circle structures are effectively detected and clearly distinguished on the surface area under study. The quantitative information is represented in a form convenient for subsequent processing and analysis.
\itemrv{~}
\itemcc{}
\itemut{wavelet transformation; basic wavelet; wavelet diagram}
\itemli{}
\end