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We have presented a method for computing angle-domain common-image
gathers from wave-equation depth-migrated images. We have shown that
the method is, in essence, a radial trace transform in the
Fourier domain, and therefore equivalent to a slant stack in the
space domain. We used a stretch technique that enabled us to include
model regularization, which leads to smooth ADCIGs. We have also shown
that the method is accurate, fast, robust, easy to implement and that
it can be used for real 3-D prestack data in applications related to
velocity and AVA analysis.

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** Up:** Sava & Fomel: Angle-gathers
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Stanford Exploration Project

4/27/2000