Local Directional And Uncoherent Seismic Noise Filtering With Oversampled Filter Banks Jérôme Gauthier (Institut Français du Pétrole (IFP)) Marie-Christine Cacas (Institut Français du Pétrole (IFP)) and Laurent Duval (Institut Français du Pétrole (IFP)) SUMMARY____________________________________________________________ Seismic data are subject to different kinds of unwanted perturbations. These random or organised noises which can be acquisition or processing related for instance may disturb geophysical interpretations and thwart attempts at automated processing methods. Since the relative features (e.g. amplitude spectrum) of the signals of interest and the noises may vary locally signal and noise separation is obtained by a local data-driven filtering with two


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