Imaging with multiples accelerated by message passing

Abstract

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2012Imaging with multiples accelerated by message passingAuthors: Ning TuFelix J. HerrmannNing Tu and Felix J. Herrmannhttps://doi.org/10.1190/segam2012-1552.1 SectionsSupplemental MaterialAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract With the growing realization that multiples can provide valuable information, there is a paradigm shift from removing them to using them. For instance, primary estimation by sparse inversion has demonstrated its superiority over surface-related multiple removal in many aspects. Inspired by this shift, we propose a method to image directly from the total up-going wavefield, including surface-related multiples, by sparse inversion. To address the high computational cost associated with this method, we propose to speed up the inversion by having the wave-equation solver carry out the multi-dimensional convolutions implicitly and cheaply by randomized subsampling. We improve the overall performance of this algorithm by selecting new independent copies of the randomized modeling operator, which leads to a cancellation of correlations that hamper the speed of convergence of the solver. We show the merits of our approach on a number of examples. Permalink: https://doi.org/10.1190/segam2012-1552.1FiguresReferencesRelatedDetailsCited byLinear Inversion Imaging Method Based on Jointed Primary Reflection Waves and Surface-related Multiples31 December 2021 | Applied Geophysics, Vol. 62Least-squares reverse time migration in the presence of density variationsJizhong Yang, Yuzhu Liu, and Liangguo Dong12 October 2016 | GEOPHYSICS, Vol. 81, No. 6Imaging with primaries and free-surface multiples by joint least-squares reverse time migrationMandy Wong, Biondo L. Biondi, and Shuki Ronen23 September 2015 | GEOPHYSICS, Vol. 80, No. 6Reverse time migration of internal multiples for subsalt imagingYike Liu, Hao Hu, Xiao-Bi Xie, Yingcai Zheng, and Peng Li31 July 2015 | GEOPHYSICS, Vol. 80, No. 5Controlling linearization errors in l1 regularized inversion by rerandomizationNing Tu, Xiang Li, and Felix J. Herrmann19 August 2013Limitations of the deconvolutional imaging condition for two-way propagatorsNing Tu, Tristan van Leeuwen, and Felix J. Herrmann19 August 2013Interferometric redatuming by sparse inversion5 December 2012 | Geophysical Journal International, Vol. 192, No. 2 SEG Technical Program Expanded Abstracts 2012ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2012 Pages: 4609 Publisher:Society of Exploration Geophysicists HistoryPublished Online: 25 Oct 2012 CITATION INFORMATION Ning Tu and Felix J. Herrmann, (2012), "Imaging with multiples accelerated by message passing," SEG Technical Program Expanded Abstracts : 1-6. https://doi.org/10.1190/segam2012-1552.1 Plain-Language Summary PDF DownloadLoading ...