1.5 Diffraction imaging in depth and time

Although many studies have been conducted on diffractions based on both depth and time domains, the latter does not provide an accurate indication of the discontinuity of the subsurface feature examined in this paper. In the field of depth, the existence of diffraction is a frequent indicator of high complexity and a strongly inhomogeneous trend [19]. As a result, pre-stacking depth imaging methods require more work and computation than those using time imaging [20]. In addition, the success of diffraction identification and isolation in the depth domain depends on the accuracy of the velocity model used to provide the full wave depth image.
