Interferometric imaging condition for wave-equation migration |
After filtering the reconstructed wavefields with pseudo WDFs, we can
perform imaging with normal procedures. For the case of wavefields
parametrized as a function of data coordinates, we obtain the total
wavefield at image coordinates by summing over receiver coordinates
Similarly, for the case of wavefields parametrized as a function of
image coordinates, we obtain the image by application of the
conventional imaging condition extracting time from the pseudo
WDF of the reconstructed wavefield:
winpcic0,winpcic1,winpcii1,winpiic1
Figure 6. Images produced by the conventional imaging condition using the data simulated in the background model (a) and using the data simulated in the random model (b). Images produced from data simulated in the random model using the interferometric imaging condition with parametrization as a function of data coordinates (c) and as a function of image coordinates (d). |
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Interferometric imaging condition for wave-equation migration |