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Proceedings Paper

In-band adaptive update step based on local content activity
Author(s): Davide Maestroni; Marco Tagliasacchi; Stefano Tubaro
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Paper Abstract

In this paper we present an adaptive version of the update step in the lifting implementation of MCTF (Motion Compensated Temporal Filtering). We explicitly take into account the local image content in order to avoid ghosting artifacts in the updated low-pass frame, tuning the update weighting factor where such artifacts are more likely to be perceived. The proposed solution is integrated into a 2D+t (in-band) wavelet based video codec and improves the subjective quality of sequences reconstructed at reduced frame rate.

Paper Details

Date Published: 24 June 2005
PDF: 8 pages
Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59600J (24 June 2005);
Show Author Affiliations
Davide Maestroni, Politecnico di Milano (Italy)
Marco Tagliasacchi, Politecnico di Milano (Italy)
Stefano Tubaro, Politecnico di Milano (Italy)


Published in SPIE Proceedings Vol. 5960:
Visual Communications and Image Processing 2005
Shipeng Li; Fernando Pereira; Heung-Yeung Shum; Andrew G. Tescher, Editor(s)

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