Reverse time migration (RTM) is a seismic imaging method to map the subsurface reflectivity
using recorded seismic waveforms. The practice in exploration seismology has long …

Traditionally, the Marchenko equation forms a basis for 1D inverse scattering problems. A
3D extension of the Marchenko equation enables the retrieval of the Green's response to a …

Full-waveform inversion (FWI) has demonstrated increasing success in estimating medium
properties, but its computational cost still poses challenges in moving towards high …

ABSTRACT A central component of imaging methods is receiver-side wavefield
backpropagation or extrapolation in which the wavefield from a physical source scattered at …

Methods for wavefield injection are commonly used to extrapolate seismic data in reverse
time migration (RTM). Injecting a single component of the acoustic field, for example …

Wavefield injection in finite-difference (FD) grids can be described by the method of multiple
point sources. The method teaches how synthetically generated wavefields and wavefield …

We have developed a method for simultaneous source separation using time dithering and
encoded source sequences. The source sequences are designed so that they are close to …

Methods for wavefield injection are used in, for instance, reverse time extrapolation of shot
gathers in reverse time migration. For correct injection of recorded data without any …

We present a method to create an internal numerical absorbing boundary within elastic solid
media whose properties are largely unknown and use it to create the first wavefield …

Ocean-bottom seismic plays a crucial role in resource exploration and monitoring. However,
despite their undoubted potential, the use of coarse receiver geometries poses challenges …