Focusing geophysical inversion images

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Publication Type Journal Article
School or College College of Mines & Earth Sciences
Department Geology & Geophysics
Creator Zhdanov, Michael S.
Other Author Portniaguine, Oleg
Title Focusing geophysical inversion images
Date 1999
Description A critical problem in inversion of geophysical data is developing a stable inverse problem solution that can simultaneously resolve complicated geological structures. The traditional way to obtain a stable solution is based on maximum smoothness criteria. This approach, however, provides smoothed unfocused images of real geoelectrical structures. Recently, a new approach to reconstruction of images has been developed based on a total variational stabilizing functional. However, in geophysical applications it still produces distorted images. In this paper we develop a new technique to solve this problem which we call focusing inversion images. It is based on specially selected stabilizing functionals, called minimum gradient support (MGS) functionals, which minimize the area where strong model parameter variations and discontinuity occur. We demonstrate that the MGS functional, in combination with the penalization function, helps to generate clearer and more focused images for geological structures than conventional maximum smoothness or total variation functionals. The method has been successfully tested on synthetic models and applied to real gravity data.
Type Text
Publisher Society of Exploration Geophysicists
Journal Title Geophysics
Volume 64
Issue 3
First Page 874
Last Page 887
Subject Focusing; Geophysical inversion images; Minimum gradient support functionals; MGS
Subject LCSH Inversion (Geophysics)
Language eng
Bibliographic Citation Portniaguine, O., & Zhdanov, M. (1999). Focusing geophysical inversion images. Geophysics, 64(3), 874-87.
Rights Management (c)Society of Exploration Geophysicists [Include link to article]
Format Medium application/pdf
Format Extent 874,921 bytes
Identifier ir-main,13892
ARK ark:/87278/s6mg8753
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-12-06
ID 707103
Reference URL https://collections.lib.utah.edu/ark:/87278/s6mg8753
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