Reducing artifacts from varying projection truncations

Leise Borg, Jakob Sauer Jørgensen, Jürgen Frikel, Eric Todd Quinto, Jon Sporring

Research output: Contribution to conferencePaperResearch

Abstract

We study samples with full and partial occlusion causing streak artifacts, and propose two modifications of filtered backprojection for artifact removal. Data is obtained by the SPring-8 synchrotron using a monochromatic parallel-beam scan [1]. Thresholding in the sinogram segments the metal, resulting in edges on which we apply 1) a smooth transition, or 2) a Dirichlet boundary condition.
Original languageEnglish
Publication date2017
Number of pages2
Publication statusPublished - 2017
Event3rd International Conference on Tomography of 3D Materials and Structures - Lund, Sweden
Duration: 26 Jun 201730 Jun 2017
http://ictms2017.lth.se/

Conference

Conference3rd International Conference on Tomography of 3D Materials and Structures
CountrySweden
CityLund
Period26/06/201730/06/2017
Internet address

Keywords

  • X-ray tomography
  • Projection truncation
  • Streak artifacts
  • Boundary conditions

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