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Transformation of local spatio-temporal structure tensor fields
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).ORCID iD: 0000-0002-9091-4724
2003 (English)In: Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on  (Volume:3 ), IEEE , 2003, 285-288 p.Conference paper, Published paper (Refereed)
Abstract [en]

Tensors and tensor fields are commonly used in multidimensional signal processing to represent the local structure of the signal. This paper focuses on the case where the sampling on the original signal is anisotropic, e.g when the resolution of the multidimensional image varies depending on the direction which is common e.g. in medical imaging devices. To obtain a geometrically correct description of the local structure there are mainly two possibilities. To resample the image prior to the computation of the local structure tensor field or to compute the tensor field on the original grid and transform the result to obtain a correct geometry of the local structure. This paper deals with the latter alternative and contains an in depth theoretical analysis establishing the appropriate rules for tensor transformations induced by changes in space-time geometry with emphasis on velocity and motion estimation.

Place, publisher, year, edition, pages
IEEE , 2003. 285-288 p.
Series
IEEE International Conference on Acoustics, Speech and Signal Processing. Proceedings, ISSN 1520-6149
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-24510DOI: 10.1109/ICASSP.2003.1199268Local ID: 6639ISBN: 0-7803-7663-3 (print)OAI: oai:DiVA.org:liu-24510DiVA: diva2:244831
Conference
ICASSP 2003, Hong Kong, China, April 6-10, 2003
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-08-28

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Andersson, MatsKnutsson, Hans

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • 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