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oa Non-interactive estimation of the Marmousi velocity model by differential semblance optimization: initial trials
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EAEG Workshop - Practical Aspects of Seismic Data Inversion, May 1990, cp-108-00010
- ISBN: 978-90-73781-01-6
Abstract
A subset of the Marmousi data is processed to yield an initial approximation to a kinematic velocity model. The process described is the first step in a gradient iteration scheme for a modified least-squares inversion method. The approach requires no picking or other extensive interaction with the data, and appears to avoid convergence difficulties reported for conventional least-squares inversion.