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Full waveform inversion (FWI) provides accurate subsurface images. In spite of its success, the application of FWI in areas with high-velocity contrast remains a challenging problem. Quadratic regularization methods are often adopted to stabilize inverse problems. Unfortunately, edges and sharp discontinuities are not adequately preserved by quadratic regularization. During the iterative FWI method, an edge-preserving filter, on the other hand, can gradually incorporate sharpness into seismic images. We use an edge-preserving filter to stabilize FWI.
This presentation is part of Minisymposium “MS67 - Advances and new directions in seismic imaging and inversion (3 parts)”
organized by: Mauricio Sacchi (University of Alberta) , Sergey Fomel (University of Texas, Austin) , Laurent Demanet (MIT ) .