Publication detail

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

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

Original Title

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

Type

presentation, poster

Language

English

Original Abstract

Misalignments of X-ray computed tomography system's components are one of the most critical factors causing dimensional measurement uncertainty. In this work we analyzed what dimensional errors are induced by the detector in-plane rotation. The effects were also evaluated and compared between helical and circular trajectory. We demonstrated how can these errors be eliminated using a self-calibration algorithm, which uses only projections data itself without additional reference scanning or precise hardware alignment.

Keywords

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

Authors

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

Released

17. 5. 2021

Location

London, United Kingdom

BibTex

@misc{BUT175355,
  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="2021",
  address="London, United Kingdom",
  note="presentation, poster"
}