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- W2217144295 abstract "We describe two different approaches to estimate angledomain illumination: model-based and data-driven. The estimated illumination fields are then applied to image angle gathers as weights to correct seismic images for poor and uneven illumination. By comparing the resulting images we conclude that the best illumination-compensated subsalt image produced in our tests is produced through a combination of the model-based and data-driven illuminations. The new technique can increase S/N and provide better image amplitude fidelity. Our study indicates that the conventional model-based approach may not always predict the illumination with sufficient accuracy due to the imperfect velocity model of the subsurface used for the prediction. A modified approach, such as the one proposed here, should thus be adopted to mitigate the model inaccuracies while correcting seismic images for the illumination effects." @default.
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- W2217144295 date "2015-08-19" @default.
- W2217144295 modified "2023-09-27" @default.
- W2217144295 title "Angle-domain Illumination Compensation for Subsalt Imaging by Combining Model-based and Data-driven Approaches" @default.
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- W2217144295 doi "https://doi.org/10.1190/segam2015-5823816.1" @default.
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