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Backward-forward motion compensated prediction
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Image Coding. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Image Coding. Linköping University, The Institute of Technology.
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
2002 (English)In: Proceedings of ACIVS 2002 (Advanced Concepts for Intelligent Vision Systems), Ghent, Belgium, September 9-11, 2002, 2002, 260-267 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents new methods for use of dense motion fields for motion compensation of interlaced video. The motion is estimated using previously decoded field-images. An initial motion compensated prediction is produced using the assumption that the motion is predictable in time. The motion estimation algorithm is phase-based and uses two or three field-images to achieve motion estimates with sub-pixel accuracy. To handle non-constant motion and the specific characteristics of the field-image to be coded, the initially predicted image is refined using forward motion compensation, based on block-matching. Tests show that this approach achieves higher PSNR than forward block-based motion estimation, when coding the residual with the same coder. The subjective performance is also better.

Place, publisher, year, edition, pages
2002. 260-267 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-24519Local ID: 6651OAI: oai:DiVA.org:liu-24519DiVA: diva2:244840
Conference
ACIVS 2002, Ghent, Belgium, September 9-11, 2002
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-08-28

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Andersson, KennethJohansson, PeterForchheimer, RobertKnutsson, Hans

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
  • rtf