In many situations, increasing SNR of prestack seismic traces is requested. Typical examples that are velocity model-building and prestack imaging. Wavefield parameters estimated by the Common Offset MultiFocusing (COMF) method can be used for prestack data enhancement, interpolation and regularization.
In this case application locally stacks prestack traces related to near offset/azimuth values along estimated COMF kinematics parameters. The fold and position of traces in the produced gathers can be defined by original geometry or regularised according to virtual acquisition pattern.
The result of the summation is assigned to the same surface location, offset, and source-receiver coordinates. Repeating this procedure for all desired points generates a new trace gathers that is called the COMF enhanced gather.
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