Atom position coding in a matching pursuit based video coder

Authors:
Pierre Garrigues;Avideh Zakhor
Affiliations:
Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, CA;Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, CA
Venue:
VLBV'05 Proceedings of the 9th international conference on Visual Content Processing and Representation
Year:
2005

Citing 5
Cited 0

A posteriori quantization of progressive matching pursuit streams

IEEE Transactions on Signal Processing
A selective update approach to matching pursuits video coding

IEEE Transactions on Circuits and Systems for Video Technology
Very low bit-rate video coding based on matching pursuits

IEEE Transactions on Circuits and Systems for Video Technology
Video compression using matching pursuits

IEEE Transactions on Circuits and Systems for Video Technology
SNR scalability based on bitplane coding of matching pursuit atoms at low bit rates: fine-grained and two-layer

IEEE Transactions on Circuits and Systems for Video Technology

Quantified Score

Hi-index	0.00

Visualization

Abstract

In this paper, we propose a new scheme for position coding of the atoms within the Matching Pursuit algorithm as applied to the displaced frame difference (DFD) in a hybrid video encoder. We exploit the spatial and temporal coherence of the positions of the atoms in the DFD: the atoms tend to cluster in regions where the motion prediction fails. The location of these regions is correlated over time. We use a block-based technique in which the number of atoms inside each block is coded differentially with respect to the same block in the previous frame. The atom positions inside each block are coded using the previously proposed NumberSplit algorithm. We demonstrate the effectiveness of our proposed approach on a number of video sequences.