Time-shift imaging condition in seismic migration

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# Imaging condition in wave-equation imaging

A traditional imaging condition for shot-record migration, often referred-to as imaging condition (Claerbout, 1985), consists of time cross-correlation at every image location between the source and receiver wavefields, followed by image extraction at zero time:
 (1) (2)

where the symbol denotes cross-correlation in time. Here, is a vector describing the locations of image points, and are source and receiver wavefields respectively, and denotes a migrated image. A final image is obtained by summation over shots.

Subsections

2011-06-04