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Cited by 4,282

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The Split Bregman Method for L1-Regularized Problems

Goldstein, Tom, Osher, Stanley·2009·SIAM Journal on Imaging Sciences

Abstract

The class of L1-regularized optimization problems has received much attention recently because of the introduction of “compressed sensing,” which allows images and signals to be reconstructed from small amounts of data. Despite this recent attention, many L1-regularized problems still remain difficult to solve, or require techniques that are very problem-specific. In this paper, we show that Bregman iteration can be used to solve a wide variety of constrained optimization problems. Using this technique, we propose a “split Bregman” method, which can solve a very broad class of L1-regularized problems. We apply this technique to the Rudin–Osher–Fatemi functional for image denoising and to a compressed sensing problem that arises in magnetic resonance imaging.

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Metadata

Authors
Goldstein, T., & Osher, S.
Venue
SIAM Journal on Imaging Sciences
Published
2009-01
Volume
2
Issue
2
Pages
323-343
ISSN
1936-4954 (ISSN-L)
OpenAlex
W2142058898
Cited by
4,282
References
2
FWCI
162.90
Type
journal article
Language
en
Open access
closed

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