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Detection of point-shaped targets
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9091-4724
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.
1996 (English)Report (Other academic)
Abstract [en]

This report documents work done at the request of the Swedish Defense Research Establishment. The studied problem is that of detecting point-shaped targets, i.e. targets whose only significant property is that of being very small, in a cluttered environment. Three approaches to the problem have been considered. The first one, based on motion compensation, was rejected at an early stage due to expected problems with robustness and computational demands. The second method, based on background modeling with principal components, turned out successful and has been studied in depth, including discussion of various extensions and improvements of the presented algorithm. Finally, a Wiener filter approach has also turned out successful, including an approximation with separable filters. The methods have been tested on sequences obtained by an IR sensor. While both the two latter approaches work well on the test sequences, the Wiener filter is simpler and computationally less expensive than the background modeling. On the other hand, the background modeling is likely to have better possibilities for extensions and improvements.

Place, publisher, year, edition, pages
Linköping, Sweden: Linköping University, Department of Electrical Engineering , 1996. , 36 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 1921
Keyword [en]
Discrete cosine transform, Wiener filters, Motion estimation
Keyword [sv]
Cybernetik Informationsteori, Databehandling Bildbehandling
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-53407ISRN: LiTH-ISY-R-1921OAI: oai:DiVA.org:liu-53407DiVA: diva2:288286
Available from: 2010-01-20 Created: 2010-01-20 Last updated: 2014-08-07Bibliographically approved

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Farnebäck, GunnarKnutsson, HansGranlund, Gösta

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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