Denoising Seismic Data via a Threshold Shrink Method in the Non-Subsampled Contourlet Transform Domain

Table 1

Comparison of various SNRs before denoising and after denoising (dB).

Noisy data	Wavelet-based denoising	Curvelet-based denoising	Our method
−8.2293	−3.1246	−0.4234	8.6838
−2.2063	5.8541	8.2496	13.2078
1.3116	7.7566	10.5394	15.9510
7.3169	11.9148	13.8784	19.4674