Skip to Main content Skip to Navigation
Conference papers

A block parallel majorize-minimize memory gradient algorithm

Abstract : In the field of 3D image recovery, huge amounts of data need to be processed. Parallel optimization methods are then of main interest since they allow to overcome memory limitation issues, while benefiting from the intrinsic acceleration provided by recent multicore computing architectures. In this context, we propose a Block Parallel Majorize-Minimize Memory Gradient (BP3MG) algorithm for solving large scale optimization problems. This algorithm combines a block coordinate strategy with an efficient parallel update. The proposed method is applied to a 3D microscopy image restoration problem involving a depth-variant blur, where it is shown to lead to significant computational time savings with respect to a sequential approach.
Complete list of metadatas

Cited literature [20 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01418417
Contributor : Emilie Chouzenoux <>
Submitted on : Friday, December 16, 2016 - 4:55:11 PM
Last modification on : Wednesday, April 8, 2020 - 4:12:31 PM
Document(s) archivé(s) le : Monday, March 27, 2017 - 11:50:15 PM

File

icip2016.pdf
Files produced by the author(s)

Licence


Public Domain

Identifiers

Citation

Sara Cadoni, Emilie Chouzenoux, Jean-Christophe Pesquet, Caroline Chaux. A block parallel majorize-minimize memory gradient algorithm. IEEE International Conference on Image Processing (ICIP 2016), Sep 2016, Phoenix, AZ, United States. pp.3194 - 3198, ⟨10.1109/ICIP.2016.7532949⟩. ⟨hal-01418417⟩

Share

Metrics

Record views

954

Files downloads

419