Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Octopus 8: A High Performance Tomographic Reconstruction Package for X‐ray Tube and Synchrotron micro‐CT
For 10 years the UGCT group has been applying micro‐CT for the investigation of geomaterials with synchrotron and X‐ray tube radiation. A new technique called element specific X‐ray CT was developed and published.
Dedicated software for tomographic reconstruction has been written during this period. The latest version, called Octopus 8, is a powerful and scanner independent package to process raw detector data into 2D slices through the object. Although the software engine is based on optimized C‐code, the graphical interface makes it very user‐friendly. A number of artifact and noise reduction algorithms are integrated to correct for ring artefacts, COR‐misalignment, detector or stage tilt, pixel non‐linearities … Three different beam geometries are included: cone beam, parallel beam and fan beam. To increase the reconstruction speed we have developed a server/client option for Octopus which allows distributed computing. A nearly linear increase of performance can be obtained through cluster or grid processing. A new beam hardening correction approach makes it possible to reduce the streak and cupping artifacts due to the polychromatic nature of the X‐ray tubes.
The paper gives an overview of the most important features of Octopus, demonstrated on natural building materials.
Octopus 8: A High Performance Tomographic Reconstruction Package for X‐ray Tube and Synchrotron micro‐CT
For 10 years the UGCT group has been applying micro‐CT for the investigation of geomaterials with synchrotron and X‐ray tube radiation. A new technique called element specific X‐ray CT was developed and published.
Dedicated software for tomographic reconstruction has been written during this period. The latest version, called Octopus 8, is a powerful and scanner independent package to process raw detector data into 2D slices through the object. Although the software engine is based on optimized C‐code, the graphical interface makes it very user‐friendly. A number of artifact and noise reduction algorithms are integrated to correct for ring artefacts, COR‐misalignment, detector or stage tilt, pixel non‐linearities … Three different beam geometries are included: cone beam, parallel beam and fan beam. To increase the reconstruction speed we have developed a server/client option for Octopus which allows distributed computing. A nearly linear increase of performance can be obtained through cluster or grid processing. A new beam hardening correction approach makes it possible to reduce the streak and cupping artifacts due to the polychromatic nature of the X‐ray tubes.
The paper gives an overview of the most important features of Octopus, demonstrated on natural building materials.
Octopus 8: A High Performance Tomographic Reconstruction Package for X‐ray Tube and Synchrotron micro‐CT
Desrues, Jacques (Herausgeber:in) / Viggiani, Gioacchino (Herausgeber:in) / Bésuelle, Pierre (Herausgeber:in) / Vlassenbroeck, Jelle (Autor:in) / Masschaele, Bert (Autor:in) / Cnudde, Veerle (Autor:in) / Dierick, Manuel (Autor:in) / Pieters, Koen (Autor:in) / Van Hoorebeke, Luc (Autor:in) / Jacobs, Patric (Autor:in)
01.01.2006
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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