Wavelet-based denoising algorithms
There are three kinds of wavelet denoising methods. They are modulus maximum method presented by Mallat et al., the relativity method given by Xu and threshold method by Donoho et al. The above methods all have their advantages and disadvantages, however, the threshold denoising method is more widely used due to its simplicity. Therefore, the threshold method is mainly discussed in this lecture. The problems need to be solved and the possible trends are listed. Furthermore, the feasible strategies are proposed.

References:

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• Donoho D.L. De-noising by Soft-thresholding. IEEE Trans on IT, 1995, 41(3): 613~627
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