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Complex Microseismic Noise Attenuation by Block Matching and Trilateral Weighted Sparse Coding
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 81st EAGE Conference and Exhibition 2019, Jun 2019, Volume 2019, p.1 - 5
Abstract
Most existing denoising algorithms will become less effective when applied to non-stationary complex noise. In this paper, we propose to use a trilateral weighted sparse coding scheme within the block matching framework for complex noise attenuation. Two weight matrices are introduced into the data-fidelity term of the sparse coding model to characterize the complex noise property, and another weight matrix is introduced into the regularization term to characterize the sparsity priors of signals. Finally, the optimization problem of the proposed sparse coding scheme is solved by the alternating direction method of multipliers. Experimental results demonstrate that the proposed algorithm achieves much better performance than state-of-the-art denoising methods.