Technical Abstract
Is image-warping a robust tool for image domain tomography?
Back to Technical ContentMigration Velocity Analysis in the subsurface-domain measures velocity errors via (extended) image-domain residuals with respect to an ideal reference image and then updates the velocity model in order to minimize those residuals.Because of the similarity between images with similar extension parameter (shot number, offset, incidence angle, etc.), image-warping definitely represents a robust approach to compute image residuals in different subsurface domains, however the robustness of the tomographic inversion depends directly on the selected domain even more than the quality of the estimated perturbation.
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EAGE - European Association of Geoscientists and EngineersAuthors
Francesco Perrone, Paul Sava