|
Title
|
|
|
|
Geometry calibration of a modular stereo cone-beam X-ray CT system
| |
|
Author
|
|
|
|
| |
|
Abstract
|
|
|
|
| Compared to single source systems, stereo X-ray CT systems allow acquiring projection data within a reduced amount of time, for an extended field-of-view, or for dual X-ray energies. To exploit the benefit of a dual X-ray system, its acquisition geometry needs to be calibrated. Unfortunately, in modular stereo X-ray CT setups, geometry misalignment occurs each time the setup is changed, which calls for an efficient calibration procedure. Although many studies have been dealing with geometry calibration of an X-ray CT system, little research targets the calibration of a dual cone-beam X-ray CT system. In this work, we present a phantom-based calibration procedure to accurately estimate the geometry of a stereo cone-beam X-ray CT system. With simulated as well as real experiments, it is shown that the calibration procedure can be used to accurately estimate the geometry of a modular stereo X-ray CT system thereby reducing the misalignment artifacts in the reconstruction volumes. |
| |
|
Language
|
|
|
|
English
| |
|
Source (journal)
|
|
|
|
Journal of Imaging. - [S.l.]
| |
|
Publication
|
|
|
|
[S.l.]
:
MDPI AG
,
2021
| |
|
ISSN
|
|
|
|
2313-433X
| |
|
DOI
|
|
|
|
10.3390/JIMAGING7030054
| |
|
Volume/pages
|
|
|
|
7
:3
(2021)
, 12 p.
| |
|
Article Reference
|
|
|
|
54
| |
|
ISI
|
|
|
|
000633805500001
| |
|
Medium
|
|
|
|
E-only publicatie
| |
|
Full text (Publisher's DOI)
|
|
|
|
| |
|
Full text (open access)
|
|
|
|
| |
|