Deep denoising autoencoder for seismic random noise attenuation

OM Saad, Y Chen - Geophysics, 2020 - library.seg.org
Attenuation of seismic random noise is considered an important processing step to enhance
the signal-to-noise ratio of seismic data. A new approach is proposed to attenuate random …

The interpolation of sparse geophysical data

Y Chen, X Chen, Y Wang, S Zu - Surveys in Geophysics, 2019 - Springer
Geophysical data interpolation has attracted much attention in the past decades. While a
variety of methods are well established for either regularly sampled or irregularly sampled …

Random noise attenuation using local signal-and-noise orthogonalization

Y Chen, S Fomel - Geophysics, 2015 - library.seg.org
We have developed a novel approach to attenuate random noise based on local signal-and-
noise orthogonalization. In this approach, we first removed from a seismic section using one …

Nonstationary predictive filtering for seismic random noise suppression—A tutorial

H Wang, W Chen, W Huang, S Zu, X Liu, L Yang… - Geophysics, 2021 - library.seg.org
Predictive filtering (PF) in the frequency domain is one of the most widely used denoising
algorithms in seismic data processing. PF is based on the assumption of linear or planar …

Unsupervised 3-D random noise attenuation using deep skip autoencoder

L Yang, S Wang, X Chen, OM Saad… - … on Geoscience and …, 2021 - ieeexplore.ieee.org
Effective random noise attenuation is critical for subsequent processing of seismic data,
such as velocity analysis, migration, and inversion. Thus, the removal of seismic random …

Damped multichannel singular spectrum analysis for 3D random noise attenuation

W Huang, R Wang, Y Chen, H Li, S Gan - Geophysics, 2016 - library.seg.org
Multichannel singular spectrum analysis (MSSA) is an effective algorithm for random noise
attenuation in seismic data, which decomposes the vector space of the Hankel matrix of the …

Automatic microseismic event picking via unsupervised machine learning

Y Chen - Geophysical Journal International, 2020 - academic.oup.com
Effective and efficient arrival picking plays an important role in microseismic and earthquake
data processing and imaging. Widely used short-term-average long-term-average ratio …

Simultaneous denoising and reconstruction of 5-D seismic data via damped rank-reduction method

Y Chen, D Zhang, Z Jin, X Chen, S Zu… - Geophysical Journal …, 2016 - academic.oup.com
The Cadzow rank-reduction method can be effectively utilized in simultaneously denoising
and reconstructing 5-D seismic data that depend on four spatial dimensions. The classic …

A fully unsupervised and highly generalized deep learning approach for random noise suppression

OM Saad, Y Chen - Geophysical Prospecting, 2021 - earthdoc.org
In this study, we proposed a deep learning algorithm (PATCHUNET) to suppress random
noise and preserve the coherent seismic signal. The input data are divided into several …

Double-sparsity dictionary for seismic noise attenuation

Y Chen, J Ma, S Fomel - Geophysics, 2016 - library.seg.org
ABSTRACT A key step in sparsifying signals is the choice of a sparsity-promoting dictionary.
There are two basic approaches to design such a dictionary: the analytic approach and the …