A primal-dual line search method and applications in image processing

Pantelis Sopasakis, Andreas Themelis, Johan Suykens, Panagiotis Patrinos

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 被引用数 (Scopus)

抄録

Operator splitting algorithms are enjoying wide acceptance in signal processing for their ability to solve generic convex optimization problems exploiting their structure and leading to efficient implementations. These algorithms are instances of the Krasnosel Mann scheme for finding fixed points of averaged operators. Despite their popularity, however, operator splitting algorithms are sensitive to ill conditioning and often converge slowly. In this paper we propose a line search primaldual method to accelerate and robustify the Chambolle-Pock algorithm based on SuperMann: A recent extension of the Krasnosel Mann algorithmic scheme. We discuss the convergence properties of this new algorithm and we showcase its strengths on the problem of image denoising using the anisotropic total variation regularization.

本文言語英語
ホスト出版物のタイトル25th European Signal Processing Conference, EUSIPCO 2017
出版社Institute of Electrical and Electronics Engineers Inc.
ページ1065-1069
ページ数5
ISBN(電子版)9780992862671
DOI
出版ステータス出版済み - 10 23 2017
外部発表はい
イベント25th European Signal Processing Conference, EUSIPCO 2017 - Kos, ギリシャ
継続期間: 8 28 20179 2 2017

出版物シリーズ

名前25th European Signal Processing Conference, EUSIPCO 2017
2017-January

会議

会議25th European Signal Processing Conference, EUSIPCO 2017
Countryギリシャ
CityKos
Period8/28/179/2/17

All Science Journal Classification (ASJC) codes

  • Signal Processing

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