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### Abstract

Residual wavefront-curvature and depth-focusing analysis are two approaches to refining velocity fields for prestack depth migration. Although the methodology of each technique is quite distinct, they differ only in the imaging condition used during migration . In this discusion, both methods are presented in a manner that emphasizes their common theoretical basis .

/content/papers/10.3997/2214-4609.201410517
1992-06-01
2022-08-17