Plane-wave RTM

Figure (b) shows the plane-wave RTM image, which is of higher quality compared to shot-domain RTM image. The artifacts in the shallow part are eliminated in the plane-wave RTM image because head and diving waves do not strongly appear in the plane-wave gathers (Figure ). Similarly, the low-frequency horizontal stripes in the bottom right corner of the conventional RTM image are removed in the plane-wave RTM image. The zoom views (Figures (b) and (b)) also show better continuity for the reflectors and fewer artifacts compared to the same zoom areas in Figures (a) and (a).