Geodesic
On phase correction in tomographic research
Sibirskij žurnal industrialʹnoj matematiki, Tome 23 (2020) no. 4, pp. 18-29

Voir la notice de l'article provenant de la source Math-Net.Ru

Under consideration is the problem of improving the contrast of the image obtained by processing tomographic projections with phase distortion. The study is based on the well-known intensity transfer equation. Unlike other works, this equation is solved in a bounded region of variation of the tomographic parameters. In a domain, a boundary value problem is posed for the intensity transfer equation which is then specialized for a three-dimensional parallel tomographic scheme. The case of two-dimensional tomography is also considered, together with the corresponding boundary value problem for the intensity transfer equation. We propose numerical methods for solving the boundary value problems of phase correction. The results are given of the numerical experiments on correction of tomographic projections and reconstruction of the structure of the objects under study (in particular, a slice of a geological sample) by using piecewise uniform regularization.
Keywords: tomography, phase correction, intensity transfer, regularization, ill-posed problem. . 
@article{SJIM_2020_23_4_a1,
     author = {Ya. Wang and A. S. Leonov and D. V. Lukyanenko and V. D. Shinkarev and A. G. Yagola},
     title = {On phase correction in tomographic research},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {18--29},
     publisher = {mathdoc},
     volume = {23},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2020_23_4_a1/}
}
TY  - JOUR
AU  - Ya. Wang
AU  - A. S. Leonov
AU  - D. V. Lukyanenko
AU  - V. D. Shinkarev
AU  - A. G. Yagola
TI  - On phase correction in tomographic research
JO  - Sibirskij žurnal industrialʹnoj matematiki
PY  - 2020
SP  - 18
EP  - 29
VL  - 23
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SJIM_2020_23_4_a1/
LA  - ru
ID  - SJIM_2020_23_4_a1
ER  - 
%0 Journal Article
%A Ya. Wang
%A A. S. Leonov
%A D. V. Lukyanenko
%A V. D. Shinkarev
%A A. G. Yagola
%T On phase correction in tomographic research
%J Sibirskij žurnal industrialʹnoj matematiki
%D 2020
%P 18-29
%V 23
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SJIM_2020_23_4_a1/
%G ru
%F SJIM_2020_23_4_a1
Ya. Wang; A. S. Leonov; D. V. Lukyanenko; V. D. Shinkarev; A. G. Yagola. On phase correction in tomographic research. Sibirskij žurnal industrialʹnoj matematiki, Tome 23 (2020) no. 4, pp. 18-29. http://geodesic.mathdoc.fr/item/SJIM_2020_23_4_a1/