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: http://num-meth.srcc.msu.ru/english/zhurnal/tom_2013/v14r161.html
Дата изменения: Wed Feb 12 16:39:48 2014 Дата индексирования: Fri Feb 28 00:37:07 2014 Кодировка: IBM-866 |
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"A multigrid algorithm for the fan-beam ROI-tomography of contrast
objects" Kulakov I.Yu., Vologin D.A., Pickalov V.V. |
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A multigrid tomography algorithm (MG-ART) is proposed to perform iterative reconstructions in embedded regions and to produce high-resolution two-dimensional images inside a selected region of interest (ROI). This work presents estimates for the efficiency of the algorithm related to computing time and accuracy of reconstructions based on the results of numerical simulation. This multigrid algebraic algorithm can be implemented for various cases of complex observation systems, including seismic tomography studies and a number of industrial limited-angle tomography applications. Keywords: ROI-tomography, fan-beam tomography, iterative algorithms, multigrid algorithms |
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Kulakov I.Yu., Head of Laboratory, e-mail: ivan.science@gmail.com;
Vologin D.A., engieneer, e-mail: ivan.science@gmail.com;
тАУ Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of Russian Academy of Sciences;
prospect Koptyuga 3, Novosibirsk, 630090, Russia;
Pickalov V.V., Chief Scientist, e-mail: pickalov@itam.nsc.ru тАУ Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences; ulitsa Institutskaya 4/1, Novosibirsk, 630090, Russia |