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Rampfilter implementation on truncated projection data. Application to 3D linear tomography for logs.
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9072-2204
2002 (English)In: Proceedings SSAB02 Symposium on Image Analysis: Lund, 2002, 33-36 p.Conference paper (Refereed)
Abstract [en]

A common wish in non-destructive testing is to investigate a large object with a small interesting detail inside. Due to practical circumstances, the projections may sometimes be truncated. According to the theory on tomography, it is then impossible to reconstruct the object. However, sometimes it is possible to receive an approximate result. It turns out that the key-point is how to implement the ramp-filter. The quality of the result depends on the object itself. We show one good experiment on real data, linear cone-beam tomography for logs. We also show experiments on the Shepp-Logan phantom, well-known from medical CT, and discuss the varying reconstruction quality.

Place, publisher, year, edition, pages
2002. 33-36 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-21623OAI: diva2:241588
Available from: 2009-10-05 Created: 2009-10-05 Last updated: 2015-03-17

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Magnusson Seger, Maria
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