Figure shows the inline dimensions of one SODCIG. The data aperture was very limited and so there are some migration artifacts. Again, note that the multiples migrate to the negative subsurface offsets and are well separated from the primaries.
By contrast with the inline direction, the sampling of the crossline offsets and CMPs is very coarse and the results of the migration are not nearly as good as illustrated in Figure which shows a cube of crossline CMPs as a function of crossline offset. Although the primaries, and the multiple, have been relatively focused toward zero subsurface offset, there is still a lot of energy smearing to both positive and negative crossline subsurface offsets.
Figure shows a zero subsurface-offset cube of migrated data. The image is good in the inline direction and somewhat noisy in the crossline direction. A comparison with the result of the common-azimuth migration Figure shows the improvement in the crossline image.