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What's so good about quadrature filters?
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
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology. Linköping University, Center for Medical Image Science and Visualization (CMIV).
2003 (English)In: Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on  (Volume:3 ), IEEE Signal Processing Society, 2003, 61-64 p.Conference paper, Published paper (Refereed)
Abstract [en]

The paper argues for the use of quadrature filters for local structure tensor and motion estimation. The question of which properties of a local motion estimator are important is discussed. Answers are provided via the introduction of a number of fundamental invariances that are required in object motion estimation. A combination of statistical and deterministic modeling leads to mathematical formulations corresponding to the required invariances. The discussion leads up to the introduction of a new class of filter sets loglets. A number of experiments support the claim that loglets are preferable to other designs. In particular it is demonstrated that the loglet approach outperforms a Gaussian derivative approach in resolution and robustness to variations in object illumination.

Place, publisher, year, edition, pages
IEEE Signal Processing Society, 2003. 61-64 p.
Series
International Conference on Image Processing. Proceedings, ISSN 1522-4880
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-24514DOI: 10.1109/ICIP.2003.1247181Local ID: 6645ISBN: 0-7803-7750-8 (print)OAI: oai:DiVA.org:liu-24514DiVA: diva2:244835
Conference
2003 International Conference on Image Processing, Barcelona, Spain, 14-17 September 2003
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-08-28Bibliographically approved

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Knutsson, HansAndersson, Mats

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  • nn-NB
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