Resynchronization of motion compensated video affected by ATM cell loss

1 January 1992

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

Vol. 3 (15206149) , 545-548 vol.3
https://doi.org/10.1109/icassp.1992.226155

Abstract

Techniques for resynchronizing motion-compensation-based coders and strategies for the recovery of lost motion vectors are discussed. Leaky-difference resynchronization yields perceptually pleasing video sequences even at fairly high cell loss rates. Future study is needed to determine optimal data-dependent or network-state-dependent conditional resynchronization strategies. Lost motion vectors can be predicted accurately with either the median of intraframe neighboring vectors or the corresponding past-frame vector. The replacement of lost motion vectors with estimates such as these can significantly improve the quality of video affected by cell loss.

Keywords

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