Results 11 to 20 of about 477 (145)
Source and receiver deghosting by demigration‐based supervised learning [PDF]
Geophysical Prospecting, Volume 72, Issue 7, Page 2443-2468, September 2024., 2022 Abstract Deghosting of marine seismic data is an important and challenging step in the seismic processing flow. We describe a novel approach to train a supervised convolutional neural network to perform joint source and receiver deghosting of single‐component (hydrophone) data.
Thomas de Jonge +4 more
wiley +2 more sources
Geophysical Prospecting, 2015 ABSTRACTA marine source generates both a direct wavefield and a ghost wavefield. This is caused by the strong surface reflectivity, resulting in a blended source array, the blending process being natural. The two unblended response wavefields correspond to the real source at the actual location below the water level and to the ghost source at the ...
Berkhout, A.J. (author) +1 more
openaire +4 more sources
Deghosting dual‐component streamer data using demigration‐based supervised learning
Geophysical Prospecting, Volume 72, Issue 1, Page 68-91, January 2024., 2023 Abstract Ghost reflections from the free surface distort the source signature and generate notches in the seismic amplitude spectrum. For this reason, removing ghost reflections is essential to improve the bandwidth and signal‐to‐noise ratio of seismic data.
Thomas de Jonge +4 more
wiley +2 more sources
Remote SensingSeismic interferometry is a key technology in geophysical exploration, having achieved significant developments in constructing virtual seismic responses, overcoming the limitation of traditional exploration.
Junming Zhang +5 more
doaj +2 more sources
An Objective Deghosting Quality Metric for HDR Images
Computer Graphics Forum, 2016 AbstractReconstructing high dynamic range (HDR) images of a complex scene involving moving objects and dynamic backgrounds is prone to artifacts. A large number of methods have been proposed that attempt to alleviate these artifacts, known as HDR deghosting algorithms.
Okan Tarhan Tursun +3 more
core +3 more sources
Deghosting method for cross localization in distributed high frequency surface wave radar
The Journal of EngineeringIn this article, the challenging problem of multi‐target cross localization within a novel distributed high‐frequency surface wave radar (HFSWR) is tackled.
Na Cui, Xuekun Chen, Changjun Yu
doaj +2 more sources
Source deghosting by depth apparition
GEOPHYSICS, 2017 Marine seismic data are distorted by ghosts as waves propagating upward reflect downward from the sea surface. Ghosts appear on the source side and the receiver side. However, whereas the receiver-side ghost problem has been studied in detail, and many different solutions have been proposed and implemented commercially, the source-side ghost problem ...
Johan O. A. Robertsson +4 more
core +4 more sources
SEG Technical Program Expanded Abstracts 2016, 2016 Marine seismic data are distorted by ghosts as waves propagating upwards reflect downwards from the sea surface. Ghosts appear both on the source-side as well as on the receiver-side.
Johan Robertsson +4 more
openaire +2 more sources
Proceedings, 2014 We present a new method to remove ghost signal from conventional streamer marine data. The method assumes that each ghost component of the recorded signal is a deformed version of the desired signal, which is free of ghost recorded energy. The free of ghost signal can be transformed into each ghost component by applying a shift in time and a proper ...
E Filpo +4 more
core +3 more sources
The State of the Art in HDR Deghosting: A Survey and Evaluation
Computer Graphics Forum, 2015 AbstractObtaining a high quality high dynamic range (HDR) image in the presence of camera and object movement has been a long‐standing challenge. Many methods, known as HDR deghosting algorithms, have been developed over the past ten years to undertake this challenge.
Okan Tarhan Tursun +3 more
core +3 more sources