Random noise suppression of seismic data using non-local Bayes algorithm

  • De-Kuan Chang
  • Wu-Yang Yang
  • Yi-Hui Wang
  • Qing Yang
  • Xin-Jian Wei
  • Xiao-Ying Feng
Article
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Abstract

For random noise suppression of seismic data, we present a non-local Bayes (NL-Bayes) filtering algorithm. The NL-Bayes algorithm uses the Gaussian model instead of the weighted average of all similar patches in the NL-means algorithm to reduce the fuzzy of structural details, thereby improving the denoising performance. In the denoising process of seismic data, the size and the number of patches in the Gaussian model are adaptively calculated according to the standard deviation of noise. The NL-Bayes algorithm requires two iterations to complete seismic data denoising, but the second iteration makes use of denoised seismic data from the first iteration to calculate the better mean and covariance of the patch Gaussian model for improving the similarity of patches and achieving the purpose of denoising. Tests with synthetic and real data sets demonstrate that the NL-Bayes algorithm can effectively improve the SNR and preserve the fidelity of seismic data.

Keywords

Non-local Bayes random noise suppression block-matching Gaussian model 

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Notes

Acknowledgments

The authors would like to thank anonymous reviewers for their constructive comments on this paper and the board editor’s help and guidance.

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Copyright information

© Editorial Office of Applied Geophysics and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • De-Kuan Chang
    • 1
  • Wu-Yang Yang
    • 1
  • Yi-Hui Wang
    • 2
  • Qing Yang
    • 1
  • Xin-Jian Wei
    • 1
  • Xiao-Ying Feng
    • 2
  1. 1.Research Institute of Petroleum Exploration & Development-NorthwestPetroChinaLanzhouChina
  2. 2.Research Institute of Exploration & DevelopmentHuabei Oilfield CompanyRenqiuChina

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