I show that this method is, in essence, a radial trace transform in the Fourier domain, and therefore equivalent to a slant stack in the space domain. The method is fully applicable to arbitrary models, with high image complexity and lateral velocity variations.
I implement the method using a stretch technique with model regularization, thus reducing the artifacts caused by non-uniform sampling due to the Fourier-domain radial-trace transforms. The method is accurate, fast, robust, easy to implement, and can be used for real prestack data for simple imaging or in applications related to migration velocity analysis (MVA) and amplitude versus angle (AVA) analysis.
Extensions to 3D are presented by (12), (13) and (36).