3D Focussing Operator Estimation from Sparse 3D Data

E-18 3D FOCUSSING OPERATOR ESTIMATION FROM SPARSE 3D DATA Abstract 1 A scheme is presented for determination of 3D one-way-travel-time operators for Common Focus Point imaging from 3D data-sets without a full areal coverage of both sources and receivers. Examples are the parallel marine geometry and the cross-spread land geometry. Kinematically the operators are rigorously correct. When actually applied to imaging of the data the AVP information is fully preserved but no azimuth dependency of the reflectivities and transmission losses is taken into account. Introduction A. GISOLF and D.J.VERSCHUUR Delft University of Technology Center for Technical Geoscience Laboratory of Acoustic