Field tests

In Chapter , I apply tau tomography with steering filter regularization to a 2-D line taken from a 3-D dataset acquired over a saltdome the North Sea. The resulting migration image is better focused with better resolution of the sediments on the salt flanks. The final velocity model still shows velocity generally following structure rather than the blobby nature common with other regularization techniques. In Chapter , I apply my method in 3-D. I use the North Sea dataset introduced in Chapter , concentrating on the structure above the saltdome, and improve both focusing and resolution of the migrated image.