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A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences

Abstract: 

Inverse problems encountered in video processing often require to minimize criteria involving a high number of variables. Among available optimization techniques, proximal methods have shown their efficiency in solving large-scale possibly nonsmooth problems. When some of the proximity operators involved in these methods do not have closed form expressions, they may constitute a bottleneck in terms of computational complexity and memory
requirements. In this paper, we address this problem and propose accelerated techniques for solving it. A new dual block-coordinate forward-backward algorithm computing the proximity operator of a sum of convex functions composed with linear operators is proposed and theoretically analyzed.
The numerical performance of the approach is assessed through an application to deconvolution and super-resolution of interlaced video sequences.

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Paper Details

Authors:
Emilie Chouzenoux, Jean-Christophe Pesquet, Jean-Hugues Chenot and Louis Laborelli
Submitted On:
23 February 2016 - 1:38pm
Short Link:
Type:
Poster
Event:
Presenter's Name:
Feriel Abboud

Document Files

Poster_ICIP.pdf

(327 downloads)

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[1] Emilie Chouzenoux, Jean-Christophe Pesquet, Jean-Hugues Chenot and Louis Laborelli, "A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/234. Accessed: Oct. 17, 2017.
@article{234-15,
url = {http://sigport.org/234},
author = {Emilie Chouzenoux; Jean-Christophe Pesquet; Jean-Hugues Chenot and Louis Laborelli },
publisher = {IEEE SigPort},
title = {A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences},
year = {2015} }
TY - EJOUR
T1 - A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences
AU - Emilie Chouzenoux; Jean-Christophe Pesquet; Jean-Hugues Chenot and Louis Laborelli
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/234
ER -
Emilie Chouzenoux, Jean-Christophe Pesquet, Jean-Hugues Chenot and Louis Laborelli. (2015). A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences. IEEE SigPort. http://sigport.org/234
Emilie Chouzenoux, Jean-Christophe Pesquet, Jean-Hugues Chenot and Louis Laborelli, 2015. A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences. Available at: http://sigport.org/234.
Emilie Chouzenoux, Jean-Christophe Pesquet, Jean-Hugues Chenot and Louis Laborelli. (2015). "A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences." Web.
1. Emilie Chouzenoux, Jean-Christophe Pesquet, Jean-Hugues Chenot and Louis Laborelli. A Dual Block Coordinate Proximal Algorithm with Application to Deconvolution of Interlaced Video Sequences [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/234