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   Articles with "imaging condition" as a keyword



Vector-based excitation amplitude imaging condition for elastic RTM

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recommendations! Published in 2017 at "Journal of Applied Geophysics"

DOI: 10.1016/j.jappgeo.2017.10.003

Abstract: Abstract In recent years, many studies have focused on elastic reverse time migration (RTM). In response to the problems associated with elastic RTM, we propose a new procedure for 2D elastic multicomponent RTM. In this… read more here.

Keywords: elastic rtm; condition; vector based; reflection ... See more keywords

Reverse-Time Migration Using Local Nyquist Cross-Correlation Imaging Condition

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recommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2022.3168582

Abstract: Reverse-time migration (RTM) has the particular capacity for complex geological structure imaging. However, massive storage and high computational costs caused by conventional cross-correlation imaging conditions restrict the large-scale application of RTM. The excitation amplitude imaging… read more here.

Keywords: imaging condition; cross correlation; correlation imaging; correlation ... See more keywords

2-D and 3-D Image-Domain Least-Squares Reverse Time Migration Through Point Spread Functions and Excitation-Amplitude Imaging Condition

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recommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2022.3215560

Abstract: The enormous computational overheads and excessive storage requirements are two obstacles to the data-domain least-squares reverse time migration (RTM) approach for the application of large-scale 3-D seismic data. To alleviate this problem, we have developed… read more here.

Keywords: imaging condition; condition; domain least; approach ... See more keywords

Investigating a time‐shift extended imaging condition in a Kirchhoff pre‐stack depth migration algorithm

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recommendations! Published in 2018 at "Geophysical Prospecting"

DOI: 10.1111/1365-2478.12609

Abstract: Extracting true amplitude versus angle common image gathers is one of the key objectives in seismic processing and imaging. This is achievable to different degrees using different migration techniques (e.g., Kirchhoff, wavefield extrapolation, and reverse… read more here.

Keywords: time shift; migration; imaging condition; time ... See more keywords

Pre‐stack Kirchhoff depth migration local space‐shift imaging condition: synthetic and data examples

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recommendations! Published in 2019 at "Geophysical Prospecting"

DOI: 10.1111/1365-2478.12760

Abstract: Extracting accurate common image angle gathers from pre‐stack depth migrations is important in the generation of any incremental uplift to the amplitude versus angle attributes and seismic inversions that can lead to significant impacts in… read more here.

Keywords: angle; imaging condition; shift; condition ... See more keywords

Poynting and polarization vectors mixed imaging condition of source time‐reversal imaging

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recommendations! Published in 2024 at "Geophysical Prospecting"

DOI: 10.1111/1365-2478.13649

Abstract: Source time‐reversal imaging based on wave equation theory can achieve high‐precision source location in complex geological models. For the time‐reversal imaging method, the imaging condition is critical to the location accuracy and imaging resolution. The… read more here.

Keywords: time reversal; condition; polarization; imaging condition ... See more keywords

Vector-based elastic reverse time migration based on scalar imaging condition

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recommendations! Published in 2017 at "Geophysics"

DOI: 10.1190/geo2016-0146.1

Abstract: ABSTRACTThe scalar images (PP, PS, SP, and SS) of elastic reverse time migration (ERTM) can be generated by applying an imaging condition as crosscorrelation of pure wave modes. In conventional ERTM, Helmholtz decomposition is commonly… read more here.

Keywords: reverse time; elastic reverse; condition; time migration ... See more keywords

Estimation of Relative Acoustic Impedance Perturbation from Reverse Time Migration Using a Modified Inverse Scattering Imaging Condition

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recommendations! Published in 2023 at "Applied Sciences"

DOI: 10.3390/app13095291

Abstract: Reverse Time Migration (RTM) is a preferred depth migration method for imaging complex structures. It solves the complete wave equation and can model all types of complex wave propagation with no dip limitation. Reverse time… read more here.

Keywords: imaging condition; reverse time; time migration; impedance ... See more keywords