Publication result detail

Resolution Enhancement by Variable Zoom Trajectory in X-Ray Computed Tomography

BLAŽEK, P.; SUPPES, A.; WOLFSCHLÄGER, D.; ZIKMUND, T.; KAISER, J.; SCHMITT, R.

Original Title

Resolution Enhancement by Variable Zoom Trajectory in X-Ray Computed Tomography

English Title

Resolution Enhancement by Variable Zoom Trajectory in X-Ray Computed Tomography

Type

WoS Article

Original Abstract

Flat objects like electronic boards are challenging samples for high-resolution X-ray computed tomography scanning because their largest dimension significantly limits the magnification using circular trajectory scans. One way to improve spatial resolution for such samples is to utilize variable zoom trajectory. During variable zoom trajectory scanning, the source-to-object distance changes during the 360 degrees rotation to maximize the magnification in the projections. Here, we propose an automatic variable zoom trajectory generation algorithm for arbitrary object and region of interest (ROI). We analyze how such a trajectory can enhance resolution in different cases and how isotropic is the resolution in the reconstructed volume. We demonstrate that the resolution can be improved without destroying the sample. However, the improvement is manifested mainly in directions in which we achieved the highest magnification in the projection.

English abstract

Flat objects like electronic boards are challenging samples for high-resolution X-ray computed tomography scanning because their largest dimension significantly limits the magnification using circular trajectory scans. One way to improve spatial resolution for such samples is to utilize variable zoom trajectory. During variable zoom trajectory scanning, the source-to-object distance changes during the 360 degrees rotation to maximize the magnification in the projections. Here, we propose an automatic variable zoom trajectory generation algorithm for arbitrary object and region of interest (ROI). We analyze how such a trajectory can enhance resolution in different cases and how isotropic is the resolution in the reconstructed volume. We demonstrate that the resolution can be improved without destroying the sample. However, the improvement is manifested mainly in directions in which we achieved the highest magnification in the projection.

Keywords

Variable zoom; Trajectory; X-ray computed tomography; Resolution; MTF

Key words in English

Variable zoom; Trajectory; X-ray computed tomography; Resolution; MTF

Authors

BLAŽEK, P.; SUPPES, A.; WOLFSCHLÄGER, D.; ZIKMUND, T.; KAISER, J.; SCHMITT, R.

RIV year

2025

Released

01.09.2024

Publisher

SPRINGER/PLENUM PUBLISHERS

Location

NEW YORK

ISBN

0195-9298

Periodical

JOURNAL OF NONDESTRUCTIVE EVALUATION

Volume

43

Number

3

State

United States of America

Pages from

1

Pages to

11

Pages count

11

URL

https://link.springer.com/article/10.1007/s10921-024-01093-6

Full text in the Digital Library

http://hdl.handle.net/11012/250683

BibTex

@article{BUT189383,
  author="Pavel {Blažek} and Alexander {Suppes} and Dominik {Wolfschläger} and Tomáš {Zikmund} and Jozef {Kaiser} and Robert H. {Schmitt}",
  title="Resolution Enhancement by Variable Zoom Trajectory in X-Ray Computed Tomography",
  journal="JOURNAL OF NONDESTRUCTIVE EVALUATION",
  year="2024",
  volume="43",
  number="3",
  pages="1--11",
  doi="10.1007/s10921-024-01093-6",
  issn="0195-9298",
  url="https://link.springer.com/article/10.1007/s10921-024-01093-6"
}

Documents

s10921-024-01093-6