Anisotropy is a common phenomenon in subsurface strata and should be considered in
seismic imaging and inversion. Seismic imaging in a vertical transversely isotropic (VTI)
medium does not take into account the effects of the tilt angles, which can lead to degraded
migrated images in areas with strong anisotropy. To correct such waveform distortion,
reduce related image artifacts, and improve migration resolution, a tilted transversely
isotropic (TTI) least-squares reverse time migration (LSRTM) method is presented. In the …