Results 121 to 130 of about 477 (145)

Deghost based on maximization of non-gaussianity

Global Meeting Abstracts, 2009
In marine seismic survey, the ghost effect is undesirable. In this paper, we present a parameter-searching method based on maximization of non-gaussianity to estimate the surface reflection coefficient and the time delay of the ghost. With the two estimated parameters, we design a deghost filter to remove the ghost effect.
Xuan Mo, Wen-kai Lu
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Bayesian Deghosting Algorithm for Multiple Target Tracking

2020 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems (MFI), 2020
This paper deals with bistatic track association in classical Frequency Modulation (FM) based Multi Static Primary Surveillance Radar (MSPSR). We formulate deghosting procedure as Bayesian inference of association matrix between bistatic tracks and targets as well as target positions.
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Statistical Source- and Receiver-side Deghosting

78th EAGE Conference and Exhibition 2016, 2016
A statistical deghosting method is described. It allows estimation of the reflection coefficient and ghost the time delay. Both the source- and the receiver-side deghostings might be done with this method.
M.S. Denisov, A.E. Firsov
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3D source deghosting after imaging

SEG Technical Program Expanded Abstracts 2014, 2014
We describe a method for source deghosting after imaging. The method consists of a multi-dimensional deterministic deconvolution of a standard migrated image using nonHessian form operators. The operators, created by modelling with ghost effects followed by standard migration, compensate for both dip dependent illumination and ghost effects, and ...
Philippe B. A. Caprioli*, Xiang Du, Robin P. Fletcher, Ivan Vasconcelos   +3 more
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Deghosting through Depth Domain Inversion

Proceedings, 2015
We describe a method for performing deghosting in the image domain. The method consists of a multi-dimensional deterministic deconvolution of a standard migrated image using non-Hessian form operators. The operators, created by modelling with ghost effects followed by standard migration, compensate for both dip-dependent illumination and ghost effects,
P. Caprioli, X. Du, R.P. Fletcher
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Source-side deghosting: A comparison of approaches

SEG Technical Program Expanded Abstracts 2013, 2013
Summary I use analytical expressions for the far-field radiation pattern of a marine source array to analyze the performance of various source-side deghosting schemes. I demonstrate and compare the performance of three different methods. These are the over-under source method (a phase shift and sum approach), Posthumus deghosting (ghost response ...
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On the application of warping deghosting

14th International Congress of the Brazilian Geophysical Society & EXPOGEF, Rio de Janeiro, Brazil, 3-6 August 2015, 2015
Eduardo Filpo*, Gilberto Lima, Paulo Lobo   +2 more
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Pseudo-3D Receiver Deghosting of Seismic Streamer Data Based on l1 Norm Sparse Inversion

Applied Sciences (Switzerland), 2022
Deli Wang, Weifeng G Zhang, Wang Deli
exaly  

Deghosting Diffusion Model for Facial Attribute Editing via Differential Activations

Communications in Computer and Information Science, 2023
Chongyu Gu, Maxim Gromov
exaly  

Deghosting method based on coding

Beijing 2014 International Geophysical Conference & Exposition, Beijing, China, 21-24 April 2014, 2014
Wang YongQiang*, Sun WeiQiang, Wang HuaZhong   +2 more
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