Automatic multicomponent image registration
Multicomponent seismic images are composed of different combinations of downgoing and upgoing wavefields. Each wave mode has different propagation velocity and polariza- tion direction and thus carries unique, direction-dependent information about the subsurface. Differences in propagation velocity cause events in converted- or shear-wave images to appear at later times than the compressional-wave image counterpart. Reflectivities are different for each wave mode and therefore, multicomponent images are not related simply by time shifts. These complications historically required that the alignment, ...
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