Artifacts and Visible Singularities in Limited Data X-Ray Tomography

Todd Quinto

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We describe a principle to determine which features of an object will be easy to reconstruct from limited X-ray CT data and which will be difficult. The principle depends on the geometry of the data set, and it applies to any limited data set. We also describe a characterization of Frikel and the author explaining artifacts that can be added to limited angle reconstructions, and we provide an easy-to-implement method to decrease them. These ideas are justified using microlocal analysis, deep mathematics that involves Fourier theory. Reconstructions from simulated and real limited data are given to illustrate our ideas.
Original languageEnglish
JournalSensing and Imaging
Volume18
Issue number1
Number of pages14
ISSN1557-2064
DOIs
Publication statusPublished - 2017

Keywords

  • Engineering
  • Electrical Engineering
  • Microwaves, RF and Optical Engineering
  • Imaging / Radiology
  • SC8
  • X-ray tomography
  • Limited tomographic data
  • Artifacts
  • Microlocal analysis
  • Instrumentation
  • Electrical and Electronic Engineering
  • Functional analysis
  • Imaging systems
  • Repair
  • Tomography
  • Fourier theory
  • Limited data
  • Limited data sets
  • Limited-angle reconstruction
  • Tomographic data
  • Computerized tomography

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