Convolutional sparse coding for noise attenuation in seismic data

نویسندگان

چکیده

We have developed convolutional sparse coding (CSC) to attenuate noise in seismic data. CSC gives a data-driven set of basis functions whose coefficients form distribution. The attenuation method by can be divided into the training and denoising phases. Seismic data with relatively high signal-to-noise ratio are chosen for get learned functions. Then, we use all (or subset) random or coherent Numerical experiments on synthetic show that learn shifted invariant filters, which reduce redundancy filters traditional sparse-coding method. achieves good performance when noisy better similar but noiseless set. numerical results from field test indicate effectively suppress complex By excluding features, our further separate ground roll.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Noise suppression in seismic data with sparse coding

Contents of this paper were reviewed by the Technical Committee of the 9 th International Congress of the Brazilian Geo-physical Society. Ideas and concepts of the text are the authors' responsibility and do not necessarily represent any position of the SBGf, its officers or members. Electronic reproduction or storage of any part of this paper for commercial purposes withou the written consent ...

متن کامل

Distributed Convolutional Sparse Coding

We consider the problem of building shift-invariant representations for long signals in the context of distributed processing. We propose an asynchronous algorithm based on coordinate descent called DICOD to efficiently solve the `1minimization problems involved in convolutional sparse coding. This algorithm leverages the weak temporal dependency of the convolution to reduce the interprocess co...

متن کامل

Scalable Online Convolutional Sparse Coding

Convolutional sparse coding (CSC) improves sparse coding by learning a shift-invariant dictionary from the data. However, existing CSC algorithms operate in the batch mode and are expensive, in terms of both space and time, on large data sets. In this paper, we alleviate these problems by using online learning. The key is a reformulation of the CSC objective so that convolution can be handled e...

متن کامل

Sparse convolutional coding for neuronal ensemble identification

Cell ensembles, originally proposed by Donald Hebb in 1949, are subsets of synchronously firing neurons and proposed to explain basic firing behavior in the brain. Despite having been studied for many years no conclusive evidence has been presented yet for their existence and involvement in information processing such that their identification is still a topic of modern research, especially sin...

متن کامل

Optimization Methods for Convolutional Sparse Coding

Sparse and convolutional constraints form a natural prior for many optimization problems that arise from physical processes. Detecting motifs in speech and musical passages, super-resolving images, compressing videos, and reconstructing harmonic motions can all leverage redundancies introduced by convolution. Solving problems involving sparse and convolutional constraints remains a difficult co...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Geophysics

سال: 2021

ISSN: ['0016-8033', '1942-2156']

DOI: https://doi.org/10.1190/geo2019-0746.1