Reverse time migration using phase crosscorrelation

TL;DR: In this article, a 3D elastic Kirchhoffer-type teleseismic imaging method that uses fast 3D travel-time calculations with minimal assumptions about the underlying structure is presented.

TL;DR: In this paper, the authors present a 2D data processing flow which allows improving the quality of ground penetrating radar (GPR) images in carbonate karst by removing the direct wave, low-frequency noise removal, geometrical spreading and exponential gain compensation, spectral balancing, Kirchhoff migration, bandpass filtering, amplitude volume enhancement, and topographic correction.

TL;DR: A new method to effectively suppress migration image artifacts using a support vector machine method, denoted as SVM filtering, which is able to produce migration images with better signal-to-noise ratios (S/N) and fewer aliasing artifacts compared to the conventional LSRTM method.

TL;DR: Wang et al. as mentioned in this paper developed a variable density acoustic RTM method which is applicable for VSP data to enhance the recognition capability of complex geological structures, and they also discuss different aspects of this proposed imaging method.

TL;DR: In this article, the authors present a seismic mapping of reflectors in the presence of an arbitrary velocity model, dipping and curved reflectors, diffractions, ghosts, surface elevation variations, and multiple reflections.

TL;DR: In this paper, an amplitude-unbiased coherency measure is designed based on the instantaneous phase, which is used to weight the samples of an ordinary, linear stack and is cleaned from incoherent noise.

TL;DR: In this paper, the authors describe the progress made in depth migration to the present and the most significant barriers to attaining its inversion goals in the future, and discuss some of the obstacles to reaching the point where seismic images can provide quantitatively accurate descriptions of rocks and fluids.