Abstract
The problem of how to recover a signal from its dyadic wavelet transform modulus maxima is considered. Based on the additional assumption that the signal has sparse representations in some transformed domains, a regularization-based reconstruction approach is proposed. The resulting minimization problem can be efficiently solved by iterative thresholding algorithm. Numerical experiments show the effectiveness of the proposed algorithm.
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Acknowledgments
This work is supported by the “973” National Basic Research Program of China (2010CB731900) and the Fundamental Research Funds for the Central Universities of China. The authors would like to thank the reviewers for their comments and suggestions that helped to improve the quality of this paper.
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Zhang, Z., Lv, H., Zhou, Q. et al. Reconstructing Sparse Signals from Dyadic Wavelet Transform Modulus Maxima. Circuits Syst Signal Process 33, 2667–2674 (2014). https://doi.org/10.1007/s00034-014-9752-2
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DOI: https://doi.org/10.1007/s00034-014-9752-2