Our purpose in research is not to focus on algorithm improvements and fine-tuning, though we end up downing so for cleaner and efficient results, but as academicians we are tasked with research goals that may look initially unreasonable, but have the potential to ideas and directions in our attempt to discover the Earth using seismic data. In our group, such ideas fall into the following focus categories:
No doubt that in the seismic arena this is the subject of the decade, as we still face many challenges in its application to real life. The high nonlinearity of the objective we seek to invert, the nonuniqeness of the model especially in the multi parameter, and the cost are among the biggest challenges as we seek to converge to a global solution for these problems.
Considering the historic focus our group had, anisotropy imaging and estimation are still important areas of our research. Though we as a community know how to image anisotropy and characterize it, we tend to have a feel for the parameters, yet we still struggle in estimating the anisotropy parameter in complex media. We have resorted to assumptions, additional information including wells to constrain the problem.