Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Hervé Chauris"'
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2008 (2009)
This paper analyzed the implementational aspects of the contourlet filter bank (or the pyramidal directional filter bank (PDFB)), and considered its application in image coding. First, details of the binary tree-structured directional filter bank (DF
Externí odkaz:
https://doaj.org/article/0b91f63c2a044036a173ec24f625f3e8
Publikováno v:
Geophysical Journal International. 233:2067-2083
SUMMARYSpectral anomalies in the seismic ambient noise are commonly observed above hydrocarbon reservoirs at frequencies of several Hertz. If properly understood, these anomalies could be a potential indicator for hydrocarbon reservoir exploration or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2caf1e0a76421ef0a608b70a98f55d88
https://doi.org/10.1093/gji/ggad031
https://doi.org/10.1093/gji/ggad031
Train traffic is a powerful source of seismic vibrations. Recent studies have shown that trains illuminate geological structures both at the crustal and the geotechnical scale. Existing works have been able to reconstruct approximately the spectral c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d578f04abfd91ebbaf8a4f36cb239d4a
https://doi.org/10.5194/egusphere-egu23-7289
https://doi.org/10.5194/egusphere-egu23-7289
Publikováno v:
Geophysical Prospecting. 70:502-524
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9093405a7614bd8414c2e6426b7a188
https://doi.org/10.1111/1365-2478.13181
https://doi.org/10.1111/1365-2478.13181
Publikováno v:
Geophysical Journal International. 228:1373-1391
SUMMARY Iterative least-squares reverse time migration (LSRTM) is the state-of-the-art linearized waveform inversion method to obtain quantitative subsurface parameters. The main drawback of such an iterative imaging scheme is the significant computa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b89ca678f3dfc41d25410f337581442
https://doi.org/10.1093/gji/ggab405
https://doi.org/10.1093/gji/ggab405
Publikováno v:
Journal of Geophysical Research : Solid Earth
Journal of Geophysical Research : Solid Earth, American Geophysical Union, 2019, ⟨10.1029/2019JB017898⟩
Journal of Geophysical Research : Solid Earth, American Geophysical Union, 2019, ⟨10.1029/2019JB017898⟩
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::879c8b0e45fbb3f47ff83a48cd76ed19
https://doi.org/10.1029/2019jb017898
https://doi.org/10.1029/2019jb017898
Autor:
Milad Farshad, Hervé Chauris
Publikováno v:
Geophysics
Geophysics, Society of Exploration Geophysicists, 2021, 86 (3), pp.S205-S220. ⟨10.1190/geo2020-0527.1⟩
Geophysics, Society of Exploration Geophysicists, 2021, 86 (3), pp.S205-S220. ⟨10.1190/geo2020-0527.1⟩
International audience; Least-squares reverse time migration (RTM) has become the method of choice for quantitative seismic imaging. The main drawback of such a scheme is that it requires many migration/modeling cycles. The convergence of least-squar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f09bc60f64ff8583966294eba9321f40
https://hal.archives-ouvertes.fr/hal-03341013
https://hal.archives-ouvertes.fr/hal-03341013
Anomalies in seismic ambient noise, defined as strong spectral amplification of the vertical components at frequencies of several Hertz, are currently observed on sites located above hydrocarbon reservoirs. If properly understood, these anomalies cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edec51ce565babeda466357a4260e433
https://doi.org/10.5194/egusphere-egu21-8709
https://doi.org/10.5194/egusphere-egu21-8709
Autor:
Hervé Chauris, Milad Farshad
Publikováno v:
82nd EAGE Annual Conference & Exhibition.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::300dbba21edf2ea3e3b876fc53518620
https://doi.org/10.3997/2214-4609.202112615
https://doi.org/10.3997/2214-4609.202112615
In 1912, Conrad Schlumberger (1878-1932), professor at the Ecole des Mines de Paris (now MINES ParisTech), made the first electric field imaging experiment at his family house in Val Richer, in Normandy. This offered new possibilities for exploring t