An Efficient ECG Denoising Method Based on Empirical Mode Decomposition, Sample Entropy, and Improved Threshold Function

Table 2

comparison of signal denoising results of the MIT-BIH database with WGN (20 dB) added.

ECG signal	EMD soft threshold	Wavelet soft threshold	EMD wavelet	Proposed method
100	0.009	0.0026	0.0026	0.0024
104	0.0141	0.0042	0.0036	0.0026
105	0.0228	0.0030	0.0031	0.0021
106	0.0356	0.0013	0.0012	0.0020
115	0.0094	0.0035	0.0030	0.0029
215	0.0105	0.0029	0.0029	0.0028
Average	0.0169	0.0029	0.0027	0.0024