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Backward-forward mo...
Backward-forward motion compensated prediction
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- Andersson, Kenneth, 1970- (author)
- Linköpings universitet,Medicinsk informatik,Tekniska högskolan
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- Johansson, Peter (author)
- Linköpings universitet,Bildkodning,Tekniska högskolan
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- Forchheimer, Robert, 1948- (author)
- Linköpings universitet,Bildkodning,Tekniska högskolan
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- Knutsson, Hans, 1950- (author)
- Linköpings universitet,Medicinsk informatik,Tekniska högskolan,Centrum för medicinsk bildvetenskap och visualisering, CMIV
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(creator_code:org_t)
- 2002
- 2002
- English.
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In: Proceedings of ACIVS 2002 (Advanced Concepts for Intelligent Vision Systems), Ghent, Belgium, September 9-11, 2002. ; , s. 260-267
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
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- 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.
Keyword
- MEDICINE
- MEDICIN
Publication and Content Type
- ref (subject category)
- kon (subject category)
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