Nonlinear inversion in electrode logging in a highly deviated formation with invasion using an oblique coordinate system

Three-dimensional inverse scattering applied to cross-well induction sensors

Three-Dimensional Nonlinear Inversion of Electrical Conductivity

Imaging of biomedical data using a multiplicative regularized contrast source inversion method

A constrained conjugate gradient method for solving the magnetic field boundary integral equation

The diagonalized contrast source approach: An inversion method beyond the Born approximation

Application of the multiplicative regularized contrast source inversion method on TM- and TE-polarized experimental Fresnel data

A finite-difference contrast source inversion method

The contrast-source stress-velocity integral-equation formulation of three-dimensional time-domain elastodynamic scattering problems: A structured approach using tensor partitioning

The contrast-source stress-velocity integral-equation formulation of three-dimensional time-domain elastodynamic scattering problems is discussed. A novel feature of the formulation is a tensor partitioning of the relevant dynamic stress and the contrast source volume density of deformation rate. The partitioning highlights several features...

Application of the finite-difference contrast-source inversion algorithm to seismic full-waveform data

We have applied the finite-difference contrast-source inversion (FDCSI) method to seismic full-waveform inversion problems. The FDCSI method is an iterative nonlinear inversion algorithm. However, unlike the nonlinear conjugate gradient method and the Gauss-Newton method, FDCSI does not solve any full forward problem explicitly in each iterative...

Structural similarity regularization scheme for multiparameter seismic full waveform inversion

We introduce a new regularization scheme for multiparameter seismic full-waveform inversion (FWI). Using this scheme, we can constrain spatial variations of parameters which are having a weak sensitivity with the one that having a good sensitivity to the measurement, assuming that these parameters have similarities in their structures. In...