Abstract
We propose a sparse regularization model for inversion of incomplete Fourier transforms and apply it to seismic wavefield modeling. The objective function of the proposed model employs the Moreau envelope of the \(\ell _0\) norm under a tight framelet system as a regularization to promote sparsity. This model leads to a non-smooth, non-convex optimization problem for which traditional iteration schemes are inefficient or even divergent. By exploiting special structures of the \(\ell _0\) norm, we identify a local minimizer of the proposed non-convex optimization problem with a global minimizer of a convex optimization problem, which provides us insights for the development of efficient and convergence guaranteed algorithms to solve it. We characterize the solution of the regularization model in terms of a fixed-point of a map defined by the proximity operator of the \(\ell _0\) norm and develop a fixed-point iteration algorithm to solve it. By connecting the map with an \(\alpha \)-averaged nonexpansive operator, we prove that the sequence generated by the proposed fixed-point proximity algorithm converges to a local minimizer of the proposed model. Our numerical examples confirm that the proposed model outperforms significantly the existing model based on the \(\ell _1\)-norm. The seismic wavefield modeling in the frequency domain requires solving a series of the Helmholtz equation with large wave numbers, which is a computationally intensive task. Applying the proposed sparse regularization model to the seismic wavefield modeling requires data of only a few low frequencies, avoiding solving the Helmholtz equation with large wave numbers. This makes the proposed model particularly suitable for the seismic wavefield (SW) modeling. Numerical results show that the proposed method performs better than the existing method based on the \(\ell _1\) norm in terms of the SNR values and visual quality of the restored synthetic seismograms.
Similar content being viewed by others
Data Availability
The datasets generated and analysed during the current study are not publicly available but are available from the corresponding author on reasonable request.
References
Babuška, I., Sauter, S.A.: Is the pollution effect of the FEM avoidable for the Helmholtz equation considering high wave numbers? SIAM Rev. 42, 451–484 (2000)
Borwein, J.M., Li, G., Tam, M.K.: Convergence rate analysis for averaged fixed point iterations in common fixed point problems. SIAM J. Optim. 27, 1–33 (2017)
Brigham, E.: The fast Fourier transform and its application. Prentice-Hall Inc., NJ (1988)
Cai, J., Chan, R., Shen, L., Shen, Z.: Convergence analysis of tight framelet approach for missing data recovery. Adv. Comput. Math. 31, 87–113 (2009)
Candès, E.J., Romberg, J., Tao, T.: Robust uncertainty principles: exact signal reconstruction from highly incomplete frequency information. IEEE Trans. Inf. Theory 52, 489–509 (2006)
Candès, E.J., Romberg, J., Tao, T.: Stable signal recovery from incomplete and inaccurate measurements. Commun. Pure Appl. Math. 59, 1207–1223 (2006)
Chen, F., Shen, L., Xu, Y., Zeng, X.: The Moreau envelope approach for the L1/TV image denoising model. Inverse Problems and Imaging 8, 53–77 (2014)
Chen, Z., Cheng, D., Feng, W., Wu, T.: An optimal 9-point finite difference scheme for the Helmholtz equation with PML. Int. J. Numer. Anal. Model. 10, 389–410 (2013)
Combettes, P.L., Yamada, I.: Compositions and convex combinations of averaged nonexpansive operators. J. Math. Anal. Appl. 425, 55–70 (2015)
Donoho, D.L.: Compressed sensing. IEEE Trans. Inf. Theory 52, 1289–1306 (2006)
Fan, J., Li, R.: Variable selection via non-concave penalized likelihood and its oracle properties. J. Am. Stat. Assoc. 96(456), 1348–1360 (2001)
Goldstein, T., Osher, S.: The split Bregman method for \(l^1\) regularization problems. SIAM J. Imag. Sci. 2, 323–343 (2009)
Horn, R.A., Johnson, C.R.: Matrix Analysis. Cambridge University Press, Cambridge (1985)
Hustedt, B., Operto, S., Virieux, J.: Mixed-grid and staggered-grid finite-difference methods for frequency domain acoustic wave modelling. Geophys. J. Int. 157, 1269–1296 (2004)
Jo, C.-H., Shin, C., Suh, J.H.: An optimal 9-point, finite-difference, frequency-space, 2-D scalar wave extrapolator. Geophysics 61, 529–537 (1996)
Krol, A., Li, S., Shen, L., Xu, Y.: Preconditioned alternating projection algorithms for maximum a posteriori ECT reconstruction. Inverse Prob. 28(11), 115005 (2012)
Lalush, D., Tsui, B.: Simulation evaluation of Gibbs prior distributions for use in maximum a posteriori SPECT reconstructions. IEEE Trans. Med. Imaging 11, 267–275 (1992)
Lebed, E., Herrmann, F.J.: A hitchhiker’s guide to the galaxy of transform-domain sparsification. In SEG Technical Program Expanded Abstracts, SEG, 27 (2008)
Li, Q., Shen, L., Xu, Y., Zhang, N.: Multi-step fixed-point proximity algorithms for solving a class of optimization problems arising from image processing. Adv. Comput. Math. 41(2), 387–422 (2015)
Lin, T.T.Y., Herrmann, F.J.: Compressed wavefield extrapolation. Geophysics, 72, SM77-SM93 (2007)
Lin, T.T.Y., Lebed, E., Erlangga, Y., Herrmann, F.J.: Interpolating solutions of the Helmholtz equation with compressed sensing. In SEG Technical Program Expanded Abstracts, SEG 27, 2122–2126 (2008)
Lustig, M., Donoho, D., Pauly, J.M.: Sparse MRI: The application of compressed sensing for rapid MR imaging, Magnetic Resonance in Medicine: An Official Journal of the International Society for. Magn. Reson. Med. 58, 1182–1195 (2007)
Lysmer, J., Drake, L.A.: A finite element method for seismology. Methods Comput. Phys. 11, 181–216 (1972)
Marfurt, K.J.: Accuracy of finite-difference and finite-element modeling of the scalar and elastic wave equations. Geophysics 49, 533–549 (1984)
Micchelli, C.A., Shen, L., Xu, Y.: Proximity algorithms for image models: Denoising. Inverse Prob. 27, 45009–45038 (2011)
Micchelli, C.A., Shen, L., Xu, Y., Zeng, X.: Proximity algorithms for the \(l_1\)/TV image denosing models. Adv. Comput. Math. 38, 401–426 (2013)
Moreau, J.-J.: Fonctions convexes duales et points proximaux dans un espace hilbertien. C.R. Acad. Sci. Paris Sér. A Math. 255, 1897–2899 (1962)
Riyanti, C.D., Kononov, A., Erlangga, Y.A., Vuik, C., Oosterlee, C.W., Plessix, R.E., Mulder, W.A.: A parallel multigrid-based preconditioner for the 3D heterogeneous high-frequency Helmholtz equation. J. Comput. Phys. 224, 431–448 (2007)
Shen, L., Xu, Y., Zeng, X.: Wavelet inpainting with the \(l_0\) sparse regularization. Appl. Comput. Harmon. Anal. 41, 26–53 (2016)
Stuart, A.M.: Inverse problems: A Bayesian perspective. Acta Numer 19, 451–559 (2010)
Wu, T., Shen, L., Xu, Y.: Fixed-point proximity algorithms solving an incomplete Fourier transform model for seismic wavefield modeling. J. Comput. Appl. Math. 385, 113208 (2021)
Xu, Y.: Sparse regularization with the \(\ell _0\) norm. Analysis and Applications, accepted (2022)
Zeng, X., Shen, L., Xu, Y.: A convergent fixed-point proximity algorithm accelerated by FISTA for the \(\ell _0\) sparse recovery problem. In: Imaging, Vision and Learning Based on Optimization and PDEs, X.-C. Tai et al. (eds.), Springer, 27-45 (2018)
Zheng, W., Li, S., Krol, A., Schmidtlein, C.R., Zeng, X., Xu, Y.: Sparsity promoting regularization for effective noise suppression in SPECT image reconstruction. Inverse Prob. 35, 115011 (2019)
Funding
T. Wu was supported in part by the Natural Science Foundation of Shandong Province of China under grants ZR2021MA049, ZR2020MA031, and Shandong Province Higher Educational Science and Technology Program of China under grant J18KA221. Y. Xu was supported in part by the US National Science Foundation under grant DMS-1912958 and by the US National Institutes of Health under grant R21CA263876.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of Interest
The authors have not disclosed any competing interests.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Wu, T., Xu, Y. Inverting Incomplete Fourier Transforms by a Sparse Regularization Model and Applications in Seismic Wavefield Modeling. J Sci Comput 92, 48 (2022). https://doi.org/10.1007/s10915-022-01906-8
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10915-022-01906-8
Keywords
- Incomplete Fourier transforms
- \(\ell _0\) norm
- Sparse regularization
- Fixed-point proximity algorithms
- Seismic wavefield modeling