DocumentCode :
3540417
Title :
Approximate message passing meets exploration seismology
Author :
Herrmann, Felix J.
Author_Institution :
Dept. of Earth & Ocean Sci., Univ. of British Columbia, Vancouver, BC, Canada
fYear :
2012
fDate :
5-8 Aug. 2012
Firstpage :
25
Lastpage :
28
Abstract :
Data collection, data processing, and imaging in exploration seismology increasingly hinge on large-scale sparsity promoting solvers to remove artifacts caused by efforts to reduce costs. We show how the inclusion of a “message term” in the calculation of the residuals improves the convergence of these iterative solvers by breaking correlations that develop between the model iterate and the linear system that needs to be inverted. We compare this message-passing scheme to state-of-the-art solvers for problems in missing-trace interpolation and in dimensionality-reduced imaging with phase encoding.
Keywords :
geophysical image processing; geophysical prospecting; interpolation; iterative methods; message passing; seismology; artifact removal; cost reduction; data collection; data processing; dimensionality-reduced imaging; exploration seismology; iterative solvers; large-scale sparsity; linear system; message passing scheme; missing trace interpolation; phase encoding; Compressed sensing; Convergence; Correlation; Imaging; Message passing; Seismology; Vectors; Exploration seismology; compressive sensing; curvelets; seismic imaging; sparsity promotion;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Statistical Signal Processing Workshop (SSP), 2012 IEEE
Conference_Location :
Ann Arbor, MI
ISSN :
pending
Print_ISBN :
978-1-4673-0182-4
Electronic_ISBN :
pending
Type :
conf
DOI :
10.1109/SSP.2012.6319676
Filename :
6319676
Link To Document :
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