In-band adaptive update step based on local content activity

Davide Maestroni; Marco Tagliasacchi; Stefano Tubaro

doi:10.1117/12.631539

24 June 2005 In-band adaptive update step based on local content activity

Davide Maestroni, Marco Tagliasacchi, Stefano Tubaro

Proceedings Volume 5960, Visual Communications and Image Processing 2005; 59600J (2005) https://doi.org/10.1117/12.631539
Event: Visual Communications and Image Processing 2005, 2005, Beijing, China

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.

Citation Download Citation

Davide Maestroni, Marco Tagliasacchi, and Stefano Tubaro "In-band adaptive update step based on local content activity", Proc. SPIE 5960, Visual Communications and Image Processing 2005, 59600J (24 June 2005); https://doi.org/10.1117/12.631539

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