1-20 of 21
Keywords: transform domain
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584184
... 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...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214882
... ABSTRACT Motivated by the theory of compressive sensing—where a sub-Nyquist sampled signal can be recovered through sparsity-promoting inversion in some sparsifying transform domain—we applied sparsity-promoting inversion algorithm to real land missing data reconstruction problem in this paper...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216229
... resolution. Firstly, we introduce the generative adversarial network to seismic data processing and use it to enhance the resolution of seismic data. For a 3D field seismic dataset, we use one typical method, the adaptive bandwidth extension in the continuous wavelet transform domain, to enhance...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17779749
... ABSTRACT We describe a new transform domain-based regularization scheme where the sparsity constraint is applied nonlocally to a group of windows that have similar signal content. Unlike existing regularization methods that work on individual overlapping windows, one at a time, our method...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5744782
... Summary According to the compressive sensing (CS) theory in the signal-processing field, we proposed a new seismic data reconstruction approach based on a fast projection onto convex sets (POCS) algorithm with sparsity constraint in the seislet transform domain. The FPOCS can obtain much...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5919692
... model for a sparsity-based deblending algorithm that uses the focal trans- form as its main engine. We show that this strategy can be ben- eficial when the deblended solution does not have a sufficiently sparse representation in the transform domain and when the coherency-based method does not provide...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1226
..., indicate that existing model update procedures are suboptimal. We propose an updating step based on orthogonalization that has strong theoretical guarantees for improved convergence and is potentially more robust to leakage issues. blended data transform domain equation annual international...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0300
... data; it is based on the acceleration data converted from the pressure data (equivalent acceleration). It entails cooperative de-noising in a high angular resolution complex wavelet transform domain between the raw accelerometer records and the converted accelerometer data. pressure data...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1051
... & gas application closed-loop srme transform domain wavefield data reconstruction berkhout focal domain algorithm reconstruction reservoir characterization estimation Closed-Loop SRME and its application to data reconstruction Gabriel A. Lopez* and D.J. Verschuur, Delft University...
Proceedings Papers

Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1098
... three spatial dimensions that is based on sparse inversion and parameter optimization of a combined linear and parabolic Radon transforms. We show a number of applications and examples on data reconstruction and regularization ranging from one to three spatial dimensions. transform domain...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-3589
... focal transform restores what the forward transform has removed. The strength of the method is that in the transform domain, the focused signals at the focal area can be separated from the dispersed noise away from the focal area. Applications of particular interest in preprocessing are interpolation...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-2581
... on the ability to represent signals sparsely in the transform domain. The digital wavelet transform (DWT) is often preferred to the Fourier transform for characterizing digital images because of its ability to localize events in both time and frequency domains (Mallat, 1999). However, DWT may not be optimal...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2827
... stack of the noisy gathers (3) Attenuate the residual noise in the weighted stack using denoising in the wavelet, Fourier, or curvelet transform domain, for example. Though simple, SAD enjoys some desirable optimality properties. During synthetic and real data experiments, SAD significantly attenuated...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2767
.... discrete curvelet transform fdct threshold value artificial intelligence taper function communication data quality upstream oil & gas artifact reservoir characterization algorithm pwfdct approximation application hennenfent interpolation algorithm node transform domain seismic data...
Proceedings Papers

Paper presented at the 1998 SEG Annual Meeting, September 13–18, 1998
Paper Number: SEG-1998-1692
... duijndam nonuniform fourier parabolic radon transform fourier transform data reduction operator transform domain Efficient nonuniform Fourier and Radon filtering and reconstruction M.A. Schonewille* and A.J.W. Duijndam, Section of Applied Geophysics, Centre for Technical Geoscience, Delft...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-1438
... ABSTRACT No preview is available for this paper. temporal frequency midpoint reservoir characterization transformation noise spatial domain irregularly forward model fourier transform transform domain parabolic radon transform sparse radon fourier domain noise event radon...
Proceedings Papers

Paper presented at the 1995 SEG Annual Meeting, October 8–13, 1995
Paper Number: SEG-1995-1373
... upstream oil & gas noise original data surface wave transform domain amplitude equalization Cascaded application of the linear radon and wavelet transforms in preprocessing M.M.N. Kabir*, Delft University of Technology; Liu Faqi, Chinese Academy of Sciences; and Dirk Verschuur, Delft University...
Proceedings Papers

Paper presented at the 1994 SEG Annual Meeting, October 23–28, 1994
Paper Number: SEG-1994-1473
... estimation separation least-square prt inversion estimation shot record transform domain verschuur radon stack artificial intelligence Integrated velocity estimation and stacking using parabolic Radon transform M.M.N. Kabir* and Dirk J. Verschuur, Delft University of Technology, The Netherlands...
Proceedings Papers

Paper presented at the 1992 SEG Annual Meeting, October 25–29, 1992
Paper Number: SEG-1992-0533
... ABSTRACT No preview is available for this paper. observation plane fourier transform continuation anomaly transform domain potential-field continuation reservoir characterization gneiss spectrum geological survey convolution transformation radon transformation information...
Proceedings Papers

Paper presented at the 1988 SEG Annual Meeting, October 30–November 3, 1988
Paper Number: SEG-1988-0198
... ABSTRACT No preview is available for this paper. point source transmitter matrix transform domain equation iteration cross-borehole resistivity inversion em1 half-space model reservoir characterization algorithm derivative university utah research institute resistivity...

Product(s) added to cart

Close Modal