Zobrazeno 1 - 10
of 18
pro vyhledávání: '"E. Yu. Usachev"'
Publikováno v:
Российский технологический журнал, Vol 12, Iss 4 (2024)
Objectives. The purpose of this work was to create an effective iterative algorithm for the tomographic reconstruction of objects with large volumes of initial data. Unlike the convolutional projection algorithm, widely used in commercial industrial
Externí odkaz:
https://doaj.org/article/93ce38377dea4a1abbd230533cf076bc
Publikováno v:
Russian Journal of Nondestructive Testing. 58:466-478
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f35c2b9bdcedeb367bb5ac16e2bb5463
https://doi.org/10.1134/s1061830922060080
https://doi.org/10.1134/s1061830922060080
Publikováno v:
Russian Journal of Nondestructive Testing. 57:897-908
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c72958996dc08239f84d23fb2da10882
https://doi.org/10.1134/s1061830921100065
https://doi.org/10.1134/s1061830921100065
Publikováno v:
Russian Journal of Nondestructive Testing. 57:579-594
A simulation model is proposed for evaluating nonmonoergeticity and scattering artifacts in computed tomography in parallel beam geometry using the example of inhomogeneous objects with axial symmetry. The modeling algorithm consists of a block for g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f2e141f81d23817f383b4d984969544
https://doi.org/10.1134/s1061830921070111
https://doi.org/10.1134/s1061830921070111
Publikováno v:
Russian Journal of Nondestructive Testing. 57:222-237
Abstract— A calculation model of X-ray computed tomography with a density assessment function in the geometry of a parallel beam has been proposed. The model includes blocks for simulating and correcting sinograms and reconstructing section images.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::395253670d09081f78f7ed41e364de21
https://doi.org/10.1134/s1061830921030049
https://doi.org/10.1134/s1061830921030049
Autor:
S. A. Shchetinkin, G. Zhang, S. V. Chakhlov, S. Song, A. V. Batranin, S. P. Osipov, E. Yu. Usachev, O. S. Osipov
Publikováno v:
Russian Journal of Nondestructive Testing. 55:672-686
The mathematical and simulation models of image formation in a system for the recognition of materials of internal fragments of containers by the dual-energy method are developed. A series of computational experiments were carried out on the recognit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30a88e99b08042a8e6689cef0dbca02a
https://doi.org/10.1134/s1061830919090043
https://doi.org/10.1134/s1061830919090043
Autor:
S. V. Chakhlov, G. Zhang, O. S. Osipov, S. Song, S. A. Shchetinkin, S. P. Osipov, A. V. Batranin, E. Yu. Usachev
Publikováno v:
Russian Journal of Nondestructive Testing. 55:687-699
A method is considered for identifying materials in large-sized test objects by high dual- and multi-energy methods based on assessment of effective atomic number. An algorithm is presented for processing original images produced by dual- and multi-e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22a60b94e13983ab00e64a7bca11c4bd
https://doi.org/10.1134/s1061830919090055
https://doi.org/10.1134/s1061830919090055
Autor:
E. Yu. Usachev, S. P. Osipov, S. A. Schetinkin, S. V. Chakhlov, N. A. Sergeeva, O. S. Osipov, A. A. Manushkin
Publikováno v:
Russian Journal of Nondestructive Testing. 55:407-417
A mathematical model of digital linear tomography has been developed that takes into account the geometrical parameters of the scheme of testing, the depth of the layer of interest, the maximum energy of X-rays, the design of the digital detector, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6256f350c4edca0ca0121b0e33c23cde
https://doi.org/10.1134/s1061830919050085
https://doi.org/10.1134/s1061830919050085
Publikováno v:
Russian Journal of Nondestructive Testing. 55:308-321
The specific features of recognizing materials of test objects and their structural fragments by the multi-energy method are considered. An approach to the combined usage of the methods of level lines and multiple energies with the aim to improve the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24d554ed951ae2a0afa6ad71d7be4902
https://doi.org/10.1134/s1061830919040119
https://doi.org/10.1134/s1061830919040119
Publikováno v:
Russian Journal of Nondestructive Testing. 54:797-810
An approach to choosing the materials and thicknesses of detectors and an intermediate filter is considered in a material recognition method based on single X-raying of a test object with separate detection of soft and hard photons. The approach comb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f75e38c1a83edcc1ba0a66f421f76c22
https://doi.org/10.1134/s1061830918110074
https://doi.org/10.1134/s1061830918110074