Design and Simulation of Regional Differently Filtering Method of FBP Algorithm for Multilayer Spherical Shell

Authors

Jingtao Xia, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;
Qunshu Wang, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;
Jiming Ma, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;
Hei Dongwei, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;
Sheng Liang, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;
Fuli Wei, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;
Guzhou Song, State Key Laboratory of Intense PulsedRadiation Simulation and Effect(Northwest Institute of Nuclear Technology), Xi’an 710024, China;

Abstract

Abstract: Aiming at the CT detection technology research for multilayer spherical shell with great density difference, the parallel beam CT projection and image reconstruction system model were built and a software platform was developed. Combined with theoretical analysis and computer simulation, the filtering method of FBP theory for image reconstruction was focused on. A special scanning mode was limited to make the projection sinogram of multilayer spherical shell show a regional spatial distribution, which was divided up combined with image analysis and priori knowledge. Then, according to the frequency characteristic and reconstruction demand, RL and SL functions were respectively used to filter projection data of different regions. The simulation results show that the proposed method can obtain better image reconstruction results compared with the single function filter in the traditional FBP algorithm.

Recommended Citation

Xia, Jingtao; Wang, Qunshu; Ma, Jiming; Dongwei, Hei; Liang, Sheng; Wei, Fuli; and Song, Guzhou (2020) "Design and Simulation of Regional Differently Filtering Method of FBP Algorithm for Multilayer Spherical Shell," Journal of System Simulation: Vol. 28: Iss. 12, Article 26.
DOI: 10.16182/j.issn1004731x.joss.201612026
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss12/26

First Page

3061

Revised Date

2015-05-11

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201612026

Last Page

3066

CLC

TP391.7

Recommended Citation

Xia Jingtao, Wang Qunshu, Ma Jiming, Hei Dongwei, Sheng Liang, Wei Fuli, Song Guzhou. Design and Simulation of Regional Differently Filtering Method of FBP Algorithm for Multilayer Spherical Shell[J]. Journal of System Simulation, 2016, 28(12): 3061-3066.

DOI

10.16182/j.issn1004731x.joss.201612026