Detail publikačního výsledku

Effect of detector in-plane rotation misalignment on dimensional measurements using helical CT acquisition

BLAŽEK, P.; BŘÍNEK, A.; VARSLOT, T.; ZIKMUND, T.; KAISER, J.

Originální název

Effect of detector in-plane rotation misalignment on dimensional measurements using helical CT acquisition

Anglický název

Effect of detector in-plane rotation misalignment on dimensional measurements using helical CT acquisition

Druh

Stať ve sborníku mimo WoS a Scopus

Originální abstrakt

One of the critical factors that may significantly contribute to X-ray computed tomography measurement uncertainty is the misalignment of CT system components from ideal geometry assumed by tomographic reconstruction. It is proven to cause image artifacts, inhomogeneous magnification, thus leading to dimensional measurement errors. There is a lack of studies on helical trajectory scanning in metrological applications, focusing on the detector's angular misalignments. We will present results of CT measurements with misaligned detector by in-plane rotation for circular, double-helix, and space-filling trajectory. They prove that such misalignment may cause significant measurements errors, depending on the misalignments magnitude and applied acquisition trajectory.

Anglický abstrakt

One of the critical factors that may significantly contribute to X-ray computed tomography measurement uncertainty is the misalignment of CT system components from ideal geometry assumed by tomographic reconstruction. It is proven to cause image artifacts, inhomogeneous magnification, thus leading to dimensional measurement errors. There is a lack of studies on helical trajectory scanning in metrological applications, focusing on the detector's angular misalignments. We will present results of CT measurements with misaligned detector by in-plane rotation for circular, double-helix, and space-filling trajectory. They prove that such misalignment may cause significant measurements errors, depending on the misalignments magnitude and applied acquisition trajectory.

Klíčová slova

X-ray computed tomography, helical trajectory, space-filling, geometrical misalignments, dimensional measurements

Klíčová slova v angličtině

X-ray computed tomography, helical trajectory, space-filling, geometrical misalignments, dimensional measurements

Autoři

BLAŽEK, P.; BŘÍNEK, A.; VARSLOT, T.; ZIKMUND, T.; KAISER, J.

Rok RIV

2023

Vydáno

01.03.2022

Nakladatel

The e-Journal of Nondestructive Testing

Strany od

1

Strany do

6

Strany počet

6

URL

http://www.ndt.net/?id=26607

BibTex

@inproceedings{BUT178936,
  author="Pavel {Blažek} and Adam {Břínek} and Trond {Varslot} and Tomáš {Zikmund} and Jozef {Kaiser}",
  title="Effect of detector in-plane rotation misalignment on dimensional measurements using helical CT acquisition",
  year="2022",
  pages="1--6",
  publisher="The e-Journal of Nondestructive Testing",
  url="http://www.ndt.net/?id=26607"
}