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Quality Assessment of Non-rigid Registration Methods for Atlas-based Segmentation in Head-neck Radiotherapy
UFRGS, Dept. Electrical Engineering, Porto Alegre/RS, Brazil.
UFRGS, Dept. Electrical Engineering, Porto Alegre/RS, Brazil.
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
Universit´e Catholique de Louvain, Communication and Rem. Sen. lab., Louvain-la-Neuve, Belgium.
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2007 (English)In: ICASSP 2007, IEEE , 2007, I-445-I-448 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we compare three non-rigid registration methods for atlas-based segmentation: B-splines, morphons and a combination of morphons and demons. To assess the quality of each method, we use a data set of four patients, containing for each patient the computed tomography (CT) image and a manual segmentation of the organs at risk performed by an expert of the head and neck anatomy. Non-rigid registration algorithms have been used to match the patient and atlas images. Each deformation field, resulting from the non-rigid deformation, have been applied on the masks corresponding to segmented regions in the atlas. The atlas based segmented masks have been compared to manual segmentations performed by the expert. The results show that the combined method (morphons + demons) achieves the best performances on this dataset resulting in an average improvement of 6% with respect to morphons and 18% with respect to B-spline.

Place, publisher, year, edition, pages
IEEE , 2007. I-445-I-448 p.
Series
IEEE International Conference on Acoustics, Speech and Signal Processing. Proceedings, ISSN 1520-6149 ; Vol. 1
Keyword [en]
biomedical imaging processing, image registration, image segmentation
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-38750DOI: 10.1109/ICASSP.2007.366712Local ID: 45482ISBN: 1-4244-0727-3 (print)OAI: oai:DiVA.org:liu-38750DiVA: diva2:259599
Conference
IEEE International Conference on Acoustics, Speech and Signal Processing, Honolulu, HI, USA; 15-20 April 2007
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2012-09-20Bibliographically approved

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Pettersson, Johanna

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf