eismic demigration / migration in the curvelet domain

  title={eismic demigration / migration in the curvelet domain},
  author={erv{\'e} Chauris and Truong Nguyen},
Curvelets can represent local plane waves. They efficiently decompose seismic images and possibly imaging operators. We study how curvelets are distorted after demigration followed by migration in a different velocity model. We show that for small local velocity perturbations, the demigration/ migration is reduced to a simple morphing of the initial curvelet. The derivation of the expected curvature of the curvelets shows that it is easier to sparsify the demigration/migration operator than the… CONTINUE READING
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