GEO-PHAILGSPAPDec 11, 2023

WISE: full-Waveform variational Inference via Subsurface Extensions

arXiv:2401.06230v123 citationsh-index: 17Geophysics
Originality Incremental advance
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This addresses uncertainty in subsurface imaging for geophysics, but appears incremental as it builds on existing variational inference and normalizing flow methods.

The paper tackles uncertainty quantification in full-waveform inversion for migration-velocity models by introducing a probabilistic technique using variational inference and conditional normalizing flows, demonstrating efficacy in case studies for quantifying amplitude and positioning effects in imaging.

We introduce a probabilistic technique for full-waveform inversion, employing variational inference and conditional normalizing flows to quantify uncertainty in migration-velocity models and its impact on imaging. Our approach integrates generative artificial intelligence with physics-informed common-image gathers, reducing reliance on accurate initial velocity models. Considered case studies demonstrate its efficacy producing realizations of migration-velocity models conditioned by the data. These models are used to quantify amplitude and positioning effects during subsequent imaging.

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