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Simon Rettenberger, B.Eng

Project management of the following projects:

  • FHInvest: RoboCT
  • AiF: In-situ-CT
  • MEF: TORERO

special task: radiation protection officer

Project Engineer

Fraunhofer Application Center for CT in Metrology

ITC2 0.15

0991/3615-731

0991/3615-679


Sortierung:
Vortrag

  • Gabriel Herl
  • Simon Rettenberger
  • Jochen Hiller
  • T. Sauer

Metal artifact reduction by fusion of CT scans from different positions using the unfiltered backprojection

In: 8th Conference on Industrial Computed Tomography (iCT 2018)

Wels, Österreich

  • 06.-09.02.2018 (2018)
Metal objects or metal parts in an object are still a major problem of X-ray computed tomography (CT) because of so called metal artifacts. We propose a new method – a multipositional data fusion – for automatically fusing multiple CT volumes from different positions to reduce these metal artifacts. After scanning a specimen several times at different positions and reconstruction of every scan (e.g. by the filtered backprojection), we also perform an unfiltered backprojection. Based on the assumption that metal artifacts occur the most wherever X-rays are attenuated a lot, the unfiltered backprojection is used to autonomously estimate the likelihood of metal artifacts in every voxel of every scan. The different volumes are registered and then fused by weighted sum preferring the voxels with low values in the unfiltered backprojection results. In our tests on real objects, our method fully automatically created optimized volumes with significantly less metal artifacts. The multipositional data fusion was compared to the commercially multi spectra fusion of Werth Messtechnik GmbH and outperformed it in one of the use cases.
  • Maschinenbau und Mechatronik
  • Fraunhofer AWZ CTMT
  • DIGITAL
Zeitschriftenartikel

  • Simon Rettenberger
  • F. Bittner
  • H.-J. Endres
  • Jochen Hiller

Blick in belastete Composite-Bauteile

In: Konstruktion (Zeitschrift für Produktentwicklung und Ingenieur-Werkstoffe) pg. IW10-IW13.

  • (2017)
  • Fraunhofer AWZ CTMT
  • Maschinenbau und Mechatronik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Gabriel Herl
  • Simon Rettenberger
  • Jochen Hiller

Fusion mehrerer Computertomographie-Aufnahmen zur Verbesserung der Bildqualität

pg. 29-32.

  • (2017)
  • Maschinenbau und Mechatronik
  • Fraunhofer AWZ CTMT
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Simon Rettenberger
  • Peter Hornberger
  • A. Tissen
  • Jochen Hiller
  • S. Zabler

Messtechnik und Materialprüfung an belasteten Bauteilen mit In-situ-Computertomographie

In: Leitfaden zur industriellen Röntgentechnik. Zerstörungsfreie Prüfung mit Bildverarbeitung (Vision)

  • (2015)
  • Maschinenbau und Mechatronik
  • Fraunhofer AWZ CTMT
  • DIGITAL