Denoising Method Based on Spectral Subtraction in Time-Frequency Domain

Figure 9

Denoising results of the sigmoid model with Gaussian white noise (S/R = −6 dB). (a) Original seismic record. (b) Noisy seismic record. (c) Denoising by SS. (d) Noise removed by SS. (e) Denoised by TF-SS. (f) Noise removed by TF-SS. (g) Local similarity between (c) and (d). (h) Local similarity between (e) and (f).

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