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A Proposal for Combining FBP and ART in CT-reconstruction
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.
n/a.
2003 (English)In: Proceedings of the Seventh International Meeting on Fully Three-dimensional Image Reconstruction in Radiology and Nuclear Medicine, St Malo, France, June 30 - July 4, 2003, 2003Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a proposal (not entirely new) for combining analytical and algebraic reconstruction techniques. Such a combination bears the promise to improve the image quality of fast but non-exact, reconstruction of the filtered backprojection type. The difference between the present proposal and traditional ART is that we compute a full error image with FBP, applied to projection differences, to update the solution in each iteration step. The main road-block seems to be the same that has been an obstacle for many ART-algorithms in CT applications, namely that the forward projections are subjected to ailiasing, which tend to override the intended benefits of the updating loop. We present an analysis of this problem and indicate some possible solutions.

Place, publisher, year, edition, pages
2003.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-21735OAI: oai:DiVA.org:liu-21735DiVA: diva2:273856
Available from: 2009-10-25 Created: 2009-10-05 Last updated: 2010-01-21

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Danielsson, Per-Erik

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Citation style
  • apa
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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