... We illustrate the advantages of deblending a simultaneous source acquisition with a multiple stages source separation with prior approach using higher dimensional transform domain. With such approach, multiple stages progressively build the coherent signal model while eliminating the associated...

... into the proposed method. Benefiting from the dimensionality reduction characteristic of deep autoencoder, the proposed method can transform the original large model dimensional FWI problem into a low model dimensional one that can be effectively optimized by global optimization. Numerical results verify...

... of the earth. EM geophys- ical surveys are increasingly being simulated and inverted in 3D, due in part to computational advances. However, the avail- ability of computational resources does not invalidate the use of lower dimensional formulations and methods, which can be useful depending on the geological...

... to a faster imaging process. In contrast to the existing shot encoding schemes, we establish a novel connection between blended imaging and dimensionality reduction using the Johnson-Lindenstrauss lemma. We introduce three new shot encoding schemes based on random projections and evaluate their performance...

... of the sources and receivers, allows for more exibility in source and receiver con gurations. A simple modi ca- tion to the classical DSR equation provides such exi- bility. Speci cally, we de ne a 7-dimensional prestack wave eld for 3-D media that includes the vertical source and receiver o set...

... as an increase of deterministic component of the seismic regime and an attractor appearance with fractal dimensionality 4.5. The model of possible reaction of the geomechanical system governed by rate-and-state friction law on perturbations due to fluid injection is considered numerically. It is shown...

... ABSTRACT Compressive inversion is a technique used to reduce the dimensionality of the data space to improve the efficiency of inversion. We develop a compressive inversion method for inverting large-scale multichannel geophysical datasets. We then develop the framework to apply this technique...

... et al., 2006; Mikhailov et al., 2007; Murphy and Brewster, 2007; Pajot et al., 2008; While et al., 2009). Pedersen and Rasmussen (1990) studied gradient tensors of gravity and magnetic fields and introduced scalar invariants to indicate their dimensionality. They also showed that the maximum...

.... There are a number of image-processing algorithms that can be used to enhance linear features such as channels in 3-D seismic volumes. One way involves the use of steerable pyramid filters to partition a seismic image in terms of scale and orientation. Features can then be characterized according to dimensionality...

...Dimensionality and Appraisal: the Bane of Geophysical Inversion Louise Pellerin*, Green Engineering, Inc., Ester Falgàs, Universitat de Barcelona, Spain Summary (a) (b) (c) (d) Figure 1. (a) Aeromagnetic data delineating the Amphitheater synform and MT profile lines; (b) 2-D inverse model of Line M...

.... dependence artificial intelligence attractor vibrator gas reservoir contour grassberger microseismic background study reservoir characterization upstream oil & gas dimensionality vibration procaccia background time series gas field field exploration spectrum ratio microseismic background...

... in the cross-line direction. The dimensionality of the interpolation does not make a big difference in the in-line direction, but makes a large difference in the cross-line direction. This is shown with several tests on a synthetic dataset. geophysics fourier transform seismic trace interpolation...

... multi-shifted-scale prediction-error filter william curry nonstationary filter claerbout stanford university convolution reservoir characterization upstream oil & gas interpolated data pef nonstationary pef different scale coefficient dimensionality grid Interpolation with multi...

... ABSTRACT No preview is available for this paper. continuous impedance morrison orthogonal dipole electromagnetic instrument inc reservoir characterization inversion resistivity dimensionality anomaly berkeley edward upstream oil & gas interpretation university...

... ABSTRACT No preview is available for this paper. parametrization the valley groom distortion emap wednesday morning shear dimensionality frequency model parameter bailey variance impedance tensor field data regional strike noise tensor reservoir characterization long...