f The pre-stack image map of subface seismic data in the horizontal time-vertical time domain

One of the goals of seismic data processing is to produce a section that in some way may be regarded as a subsurface cross section. The normal processing route includes NMO, CMP stacking and imaging in a post-stack migration procedure. This proces works well on areas with uniform dip. However when the stacking velocities are dip-dependent the final image will be degraded.